[Home ] [Archive]   [ فارسی ]  
:: About :: Main :: Current Issue :: Archive :: Search :: Submit :: Contact ::
Main Menu
Home::
Journal Information::
Articles archive::
For Authors::
For Reviewers::
Registration::
Contact us::
Site Facilities::
::
Search in website

Advanced Search
..
Receive site information
Enter your Email in the following box to receive the site news and information.
..



 
..
:: Search published articles ::
Showing 24 results for Genetic Diversity

Samira Mohammadi, Ali Ashraf Mehrabi, Ali Arminian, Arash Fazeli,
Volume 1, Issue 1 (5-2014)
Abstract

Genetic diversity among 35 accessions of Ae. cylindrica using 17 ISSR primers were investigated. Totally, 190 alleles were amplified and 188 alleles (98.95%) o were polymorphic. Number of Amplified alleles ranged from 6 to 20 with average 11.18 alleles for each primer. Polymorphic information content (PIC) varied from 0.10 (primer UBC841) to 0.35 (primer UBC836). Marker index criterion ranged from 0.6 (primer UBC841) to 6 (primer 15). Cluster and Principal Coordinate Analysis could not completely separate accessions and showed no association between molecular diversity and geographic diversity of genotypes, indicating that there is high genetic diversity among accessions. West and south-west genotypes showed more diversity than genotypes from north and north-west of the country. Therefore, the center of diversity and origin of Aegilops cylindrica might be the western and south-western regions of country and this species might transferred from these regions to the northern parts of the country. Results of this study showed that ISSR markers are useful tools for management of genetic resources of wheat and their wild relative species.
Maryam Ahmadi, Mustafa Valizadeh, Mahmoud Tourchi, Mohammad Moghaddam Vahed, Hossein Mohammadzadeh Jalaly,
Volume 1, Issue 1 (5-2014)
Abstract

For evaluation of genetic diversity among improved alfalfa varieties and Iranian landraces, 12 populations including five improved varieties (Kaysari, Kadi, Ranger, Mesmir, Seariver) and seven landraces (Gharayonje, Amozeynadin, Rahnani, Tazekand, Shazand, Hamedani, Yazdi) were evaluated using agronomic traits and enzyme markers. Thirty-five individuals of each variety were grown and analyzed in separate pots in a unbalanced completely randomized design (CRD). Analysis of variance for agronomic traits showed significant differences for most of the traits among improved and landrace varieties. For esterase and peroxidase enzymes based on presence or absence of enzyme bands (1, 0) eleven polymprphic isozyme bands were detected. For improved and landrace varieties Shanon index mean was 0.48 ± 0.246 and 0.519 ± 0.193, respectively, furthermore Nei genetic diversity index mean for improved and landraces was 0.327 ± 0.181 and 0.352 ± 0.148 respectively, suggesting no difference between improved and landrace varieties was found. Analysis of relation between isozyme markers and agronomic traits showed that there are significant differences between the presence of POX-4 and wet and dry yield in improved varieties.
Ali Shuorvazdi, Seyed Abuolghasem Mohammadi, Majid Norozi, Behzad Sadeghzadeh,
Volume 1, Issue 1 (5-2014)
Abstract

Due to their adaptation to different environment conditions, landraces are valuable genetic resurces for incresing diversity of breeding germplasms and are potential resources for biotic and abiotic stress resistant genes. In the present study, genetic diversity and relationships of 119 barely landraces from different countries along with 25 commerical varieties and breeding lines were assessed, using 45 microsatellite primer pairs. In total, 225 alleles range from 2 to 14 and an average of 5 alleles per locus were amplified. Polymorphic information contenet (PIC) varied from 0.05 to 0.90 with a mean of 0.51. The minimum and maximum frequency of common allele belonged to EBMAC0788 (0.13) and GBM1411 (0.97) markers, respectively. Analysis of molecular variance (AMOVA) revealed a higher within group variation (94%) than between group. Maximum and minimum Shannon’s and Nei gene diversity indices were observed in Iranian and Egyptian landraces, respectively. Cluster analysis using Minimum Evolution algorithm and P-distance coefficient assigned the studied genotypes into three groups. This grouping was partly consistent with geographical origins of the genotypes.
Valiollah Yousefi, Abdollah Najaphy, Alireza Zebarjadi, Hooshmand Safari,
Volume 1, Issue 1 (5-2014)
Abstract

Thymus, an aromatic medicinal plant, is a well-known, perennial and woody herb from Lamiaceae family. Thymus is taxonomically a very complex genus with a high frequency of hybridization and introgression among sympatric species, and some species of this herb are endemic to Iran. In the present study, in order to identification genetic variability in this medicinal plant seven Thymus spp. accessions collected from different regions of Iran along with London agricultural species were studied by karyotypic characteristics. The secondary basic numbers in all ecotypes was x = 15 that probably originate from a primary basic number x = 7. The ploidy levels of these ecotypes were diploid and tetraploid. The Thymus ecotypes under study occupied classes 1A and 1B of Stebbins’ karyotype classification, indicating the presence of a primitive symmetrical karyotype in these ecotypes. The mean chromosome length ranged from 1.03 to 1.53 µm. chromosome types were detected as metacentric “m”. Furthermore, the cluster analysis using chromosomal parameters and based on UPGMA assigned the ecotypes into four groups.
Sedigh Ebrahimi, Abdolhossein Rezaei Nejad, Ahmad Ismaili, Farhad Karami,
Volume 1, Issue 2 (2-2015)
Abstract

Evaluation of genetic diversity among apricot genotypes may increase our genetic knowledge and provide better plant materials for selection of desirable genotypes. In this study, genetic diversity of 26 apricot genotypes phenological and physiological traits of 26 apricot cultivars collected at Kurdistan agricultural research station was studied based on a randomized complete block design with three replications for phenological and physiological traits. Analysis of variance showed that the effect of genotype on flower initiation, flowering period, relative water content (RWC), ion leakage, proline and potassium content of flower pistil tissue, spring frost damage to flowers, harvest date, total soluble solids, titratable Acidity (TA) and pH was significant at the 1% level. These results indicated that the existence of significant genetic variation among studied genotypes. The lowest heritability (28.5%) was belonged to date of 50% flowering, indicating the strong effect of environmental factors on this trait. The highest heritability (99%) estimated for related traits to yield including total soluble solids, fruit harvesting period and uniform rippening, suggested that the influence of environmental effects on these traits were very low.
Reza Mir Drikvand, Asma Khyrolahi, Asa Ebrahimi, Mohammad Rezvani,
Volume 2, Issue 1 (5-2015)
Abstract

In this study, genetic diversity of 25 rainfed bread and durum wheat genotypes were assessed using 20 SSR primers that all of them were generated scorable bands. Totally 69 alleles (ranged between 2 allele for Xcfd40 and Xgwm369, and 5 allele for Xbarc54 primers per each locus), were distinguished. Polymorphic information content (PIC) for all SSR primers was calculated. The highest (0.98) and the lowest (0.64) amount of PIC was pertained to Xcfd40 and Xgwm30 primers, respectively. Based on similarity matrix, the highest and lowest genetic similarity was belonged to Seri82 and Seri (0.86) and Sita/chil and Baviacora (0.14), respectively. Cluster analysis could distinct spring and winter wheat genotypes and as well as bread and durum wheat genotypes. It was concluded that SSR marker was suitable for evaluation of genetic diversity in rainfed wheat genotypes. This genetic diversity can be used in wheat breeding programs.


Mahdi Kakaei, Hojatollah Mazahery-Laghab,
Volume 2, Issue 1 (5-2015)
Abstract

In order to identify the correlation between different agronomical traits and the study of their relation using regression analysis, 46 alfalfa populations were studied in the research farm at Bu-Ali Sina University in 2013. Analysis of variance for different traits revealed a significant difference between populations for dry forage yield at the level of 1% probability. The genotypic ccorrelation coefficients of fresh forage yield with the amounts of leaf chlorophyll (SPAD) (0.952**), plant height at 10% flowering stage with fresh forage (0.987**), dry matter yield with fresh forage yield (-0.942**), dry forage yield with plant height at 10% flowering stage (0.676*) and dry matter percent (0.896*) showed significant correlations. Phenotypic correlation analysis showed a positive and significant correlation between damage percent and the number of larvae (0.767**), a negative and significant correlation between dry material percent and fresh forage yield (-0.450**). However, dry matter percent had a negative and significant correlation with dry forage yield (0.424**). The stepwise regression for fresh forage yield as dependent variable showed that dry forage yield, dry matter percent, plant height in 10% flowering stage and number of larvae were respectively entered to the model and with 89.29% of cumulative contrast coefficient confirmed the most variations of fresh forage yield. Furthermore, the maximum and minimum heritability percent was depended to the number of Larvae and dry forage yield respectively. Naragamet population (No. 30) with a high yield of dry forage and the number of larvae and also a relatively low level of damage percent among other populations could be suggested as a desirable and tolerant population


Fatemeh Sahranavard Azartamar, Mortaza Ghadimzadeh, Reza Darvishzadeh,
Volume 2, Issue 2 (3-2016)
Abstract

Knowledge about the amount of genetic diversity and understanding relationship between genotypes are important steps in plant germplasm conservation and breeding activities. In this study, the genetic diversity among 106 sunflower lines was assessed by 30 microsatellite primers. A total of 71 alleles were detected. Number of alleles in microssatellite loci ranged from 2 to 4 with the average number of 2.207 alleles per locus. The effective number of alleles ranged from 1.058 in locus ORS718 to 3.147 in locus HA3040. The average number of effective alleles was 1.641. The mean of PIC value was 0.344. Based on allele number and PIC value, SSR loci such as HA3040 and ORS733 are considered appropriate markers for studying genetic diversity in oily sunflower. Based on the results of cluster analysis using Jaccard's similarity coefficient and complete algorithm, the lines were grouped into four groups. Nineteen six out of 106 genotypes were grouped according to their origins (research centers). The highest and lowest Nei genetic distances were 0.21 and 0.004 between “NOVARTIS and HUNGARY” and “SPII with ENSAT and INRA-MONTPOL” groups, respectively. Analysis of the population structure revealed 5 subpopulations in the studied panel. The results show that the assignment of lines to subpopulations is not concordance with their geographical distribution pattern. The genetic diversity and distance revealed by SSR markers can be used in oily sunflower crossing and breeding programs
Marziyeh Shazdehahmadi, Mahin Kharrazi,
Volume 2, Issue 2 (3-2016)
Abstract

Determination of genetic diversity of breeding material is the first step in breeding programs. Evaluation of tobacco genetic diversity is essential for breeding programs and preservation of genetic resources. Genetic diversity level in tobacco genotypes, is very important for selection of parents in breeding programs. In this study, genetic diversity of 100 tobacco genotypes was evaluated using 25 ISSR markers. Banding pattern based on the presence or absence of the bands showed with 0 and 1, respectively. Out of 237 fragments produced in total cultivars, 195 bands were polymorphic and average of polymorphism ranged from 4 to 12 per primer. Average of polymorphism percentage was 94.10. To determine the efficiency of ISSR markers, PIC and their polymorphic percentage was calculated. UBC 818, UBC 812 and UBC 815 had the best marker parameters and were introduced as the best primers for assessment of genetic diversity. In order to evaluate the genetic similarity between cultivars, different similarity coefficient (SM, Dice and Jaccard) was calculated and Mantel corresponding test was performed. Finally, dendrogram was drawn based on SM similarity coefficient and UPGMA algorithm and the Cofenetic coefficient was calculated. All genotypes formed two distinct clusters indicating the high efficiency of used primers in amplification the approximate parts of the genome. The principle coordinate analysis showed that the first three components could explain 79.65 % of total variance. Totally, evaluation the tobacco genetic diversity using ISSR markers is suitable and ISSR marker can be used as appropriate marker system to identify the diversity and genetic relationship for breeding programs of this plant.
Ali Darvishian, Ahmad Ismaili, Farhad Nazarian-Firouzabadi, Reza Mirdrikvand, Tahmasb Hosseinpour,
Volume 2, Issue 2 (3-2016)
Abstract

Plant breeding is selection of advanced genotypes and its progress depends on correct evaluation of genetic variation. Among different selection procedure, molecular markers have a good potential for evaluation of variation. In this research, RAPD molecular markers were used to evaluation of genetic diversity among 25 wheat cultivars and advanced breeding lines. Genomic DNA was extracted from leaves by Dellaporta method and 30 primers were used for PCR amplification. Results of Primers led to 200 storable electrophoretic bands which 130 of them (65%) were polymorphic. F4 and A18 primers produced the greatest and lowest band, respectively. Cluster analysis was performed based on band presence (1) and absence (0) using Jaccard coefficient similarity and UPGMA method. Similarity coefficient ranged from 0.22 to 0.87 with an average of 0.64. The highest similarity (0.87) was observed between Azar2 and Sardari and lowest similarity (0.22) was observed between Seimareh and BAVICORA. With cut of line on 0.72 in dendrogram, 6 main groups were clustered and other genotypes were clustered in different group. Regarding to the high similarity among these genotypes, it is necessary to develop the wheat germplasm in related research centers.
Reza Darvishzadeh, Mir Javad Mousavi Andazghi, Amir Fayyaz Moghaddam, Hossein Abbassi Holasou, Seyyed Reza Alavi,
Volume 3, Issue 2 (3-2017)
Abstract

In order to evaluate heritability and gene action for some of the important quantitative traits in oriental tobacco, two genotypes, Basma 16-10 and SPT406 were crossed with Basma S. 31 cultivar, separately in 2009-2010. Parents with F1, F2, BC1 and BC2 generations were planted in a randomized complete block design with three replications. Traits such as plant height, leaf length, leaf width, leaf number, internnode number, stem diameter and yield per plant were recorded. The results obtained from analysis of variance indicated that generations mean squares were statistically significant for all traits expect for stem diameter. Therefore, generation mean analysis was performed for significant triats to estimate gene actions using Chi-square and scaling tests. The Chi-square of simple three-parametric model (additive-dominance model) was significant for studied crosses, indicating the presence of non allelic-interactions in the inheritance of these traits in oriental tobacco. Both additive and dominance genetic effects were significant for plant height, leaf length, leaf width, leaf number and internnode number. In addition, presence of high amount of dominance effect and dominance × dominance interactions suggests the importance of non-additive genetic effects for these traits in oriental tobacco. Therefore, selection for these traits in early generations can not be successful. However, additive genetic effects play an important role in the inheritance of yield, and then selection for this trait is hopeful in early generations during tobacco breeding process.
Reza Mir Drikvand,
Volume 3, Issue 2 (3-2017)
Abstract

Identification and application of genetic diversity are essential to breeding programs success. In this study, genetic diversity of 20 rainfed barley genotypes were assessed using morphological traits as well RAPD and intron-exon splice junction (ISJ), semi-random markers. Results of this study showed that there were significant differences among genotypes for all traits, indicating high genetic variation among them. The highest and lowest broad sense heritability was related to spike length and grain yield, respectively The estimates of genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV) were high for number of grain per spike, and low for 1000-kernel weight, respectively. Mean of polymorphic percentage in ISJ marker was higher than RAPD marker. Cluster analysis showed that the distinctions based on morphological traits did not correspond with the distinction based on molecular data.The results showed that RAPD and ISJ markers were able to distinct two and six-rowed and also hulless and hulled barley genotypes. Distinction of three clusters did not follow the same pattern.There was significant and negative correlation between similarity matrices of molecular data and morphological traits, but similarity matrices of two molecular markers was significantly and positively correlated.
, ,
Volume 4, Issue 1 (9-2017)
Abstract

Chrysanthemum is one of the world's most important cut flower crops. The genetic diversity assessment among present Iranian Chrysanthemum cultivars are needed for future Chrysanthemum breeding programs. In an attempt to reveal the genetic variation and relationship among 30 Chrysanthemum cultivars, some morphological and a chloroplastic gene (rpoC) DNA molecular markers were employed. Chrysanthemum cultivars were cultivated in a Randomized Complete Block design (RCBD) with 3 replications in the field. Meanwhile, a phylogenetic tree was constructed based on chloroplast rpoC gene sequence. Analysis of variance (ANOVA) indicated that a significant variation exists among the Chrysanthemum cultivars for almost all the traits under study. In general, phenotypic coefficient of variation was higher than the genotypic coefficient of variation indicating the predominant role of environment effects. Ward Cluster analysis divided cultivars in two main clusters with highest number of cultivars falling under cluster I. Phylogenetic relationships among Chrysanthemum cultivars based on Maximum likelihood method showed that Iranian cultivars belong to Chrysanthemum morifolium, suggesting that these cultivars have presumably been bred from the same set of parents. Furthermore, genetic distance between cultivars ranged from 0.4 to 2.9, indicating sufficient genetic diversity among cultivars for crossing and selecting the most appropriate parents for Chrysanthemum morifolium breeding programs.
Mitra Shahbazi, Farhad Nazarian-Firouzabadi, Omid Ali Akbarpour,
Volume 5, Issue 1 (9-2018)
Abstract

Chrysanthemum (Chrysanthemum morifolium) is one of the most important ornamental plants which plays a significant role in the development of gardening industry in the world. The knowledge of genetic diversity is one of the prerequisite criteria for Chrysanthemum breeding with important economic goals. Molecular markers have a significant share in elucidation of inter and intra species genetic diversity. To this end, genetic diversity of a number of Iranian cultivars was molecularly investigated by sequencing a part of rDNA, using ITS4 and ITS5 primers. Genetic distance between Chrysanthemum cultivars ranged from 0.05 to 10.15, demonstrating the power of ITS region in revealing the genetic diversity among cultivars of morifolium, suggesting Iranian cultivars have been genetically improved from morifolium species. Genetic diversity assessment of Iranian Chrysanthemum cultivars demonstrated that presumably inter, intra species or even inter population hybridization may have been involved in creating enormous genetic diversity among Chrysanthemum cultivars.

Arash Salami, Mohammadhadi Pahlevani, Khalil Zenalinezhad, Mohsen Esmaeilzadeh Moghaddam,
Volume 5, Issue 1 (9-2018)
Abstract

Collection and conservation of germplasm, particularly for landraces of important agronomically species and organizing their information, cause to continuity of their usefulness and reduce the risk of their genetic erosion. In this experiment, 10 Iranian wheat landraces along with the Chinese Spring cultivar, as control, were used to assess inter and intra populations variation by using ISSR molecular markers and morphological traits. Evaluation of populations in terms of height, spike length, awn length, number of spike nodes, number of grains per spike, flag leaf length and grain weight showed that there were considerable variation among landraces. Also, in some landraces like KhorramAbad and Ardabil, intra population diversity for some of these traits, such as plant height and length of awn, was obvious. Evaluation of the landraces for ISSR markers showed that among 99 scored bands, 78 bands were polymorphic. Percent of polymorphism with mean of 81.88 % was varied from 53.33 for primer of ISSR-4 to 100% for primers of ISSR-9, ISSR-14, ISSR-5 and ISSR-7. Average PIC of the landraces was estimated 3.0. Results of this study showed that there was considerable intra population diversity for the ISSR markers in landraces of KhorramAbad, Maragheh and Torbat-e-Heydarieh however, a little diversity for Khoy, Ahwaz, Isfahan, Mashad, Urmia, Shiraz and Ardabil was observed. Results of this study showed that there is inter and intra genetic diversity within Iranian landraces of wheat with different levels and these landraces can be used as basic population for extraction of pure lines.

Faranak Khanmakoo, Seyed Abolghasem Mohammadi, Robab Salami, Saeed Aharizad,
Volume 5, Issue 2 (3-2019)
Abstract

Fungal diseases, especially leaf and stripe rusts are wheat yield reducing factors in Iran and the world. In this study, genetic diversity of 20 wheat varieties with different response to leaf and stripe rusts were studied using primers designed based on the conserved regions of plant disease resistance genes. The banding patterns of polymorphic markers were scored as dominant and number of amplified bands and percentage of polymorphism were determined. In addition, for each primer combination, polymorphic information content (PIC) and marker index (MI) were calculated. Out of the 11 used single primers and primer combinations, five primer combinations and a single primer produced scorable amplification. The maximum and minimum of PIC were observed for LLOOP-1 and H2016-H2020 primer combination with mean value of 0.50 and 0.28, respectively. The primer combinations of H2016-H1146 and H2016-H2020 with mean values of 4.80 and of 2.84, had minimum and maximum of MI, respectively. Cluster analysis based on Neighbor-Joining algorithm and evolutionary P-distance coefficient assigned the varieties into four groups which were in agreement with their response to yellow rust. In principal coordinate analysis, the scatter plot of varieties based on two first coordinates confirmed the groups obtained from cluster analysis.
Roya Zirak, Ali Soleimani, Mehrshad Zeinolabedini, Hamid Hatami Maleki, Azizolah Kheiri,
Volume 5, Issue 2 (3-2019)
Abstract

Genetic diversity among Russian olive genotypes in three different regions of East-Azerbaijan province (includes Tabriz, Maragheh and Malekan) were assessed using morphological and molecular (AFLP) markers. Results of the quantitative and qualitative traits statistics showed a significant genetic variation among studied germplasm and categorized them in five distinguished groups. The most number of genotypes from Maragheh region were in group 1, while, the group 3 consisted of the majority of genotypes from Tabriz region. All genotypes were analyzed with 14 EcoRI-MseI primer combinations. A total of 439 informative and polymorph AFLP markers was generated and analyzed. Based on Jaccard Similarity Index, the minimum genetic similarity was observed between genotype 19 (from Malekan region) and 27 (from Maragheh). The principal coordinate analysis (PCoA) showed the suitable genomic distribution of AFLP markers among individuals. The highest (0.83 %) and lowest (0.33 %) polymorphic information content achieved by primers combination MTTT-EGA and MGT-ETA, respectively. Cluster analysis using molecular data and UPGMA algorithm, classified the studied genotypes in three distinguished groups. The genotypes at the same geographical region did not classify in the same group based on clustering by molecular data. However, this achieved to a large extent when they were classified groups using morphological traits. This result might be explained in terms of convergent evolution and some in part due to asexual propagation of Russian olive from the limited maternal genotypes and distribution across the different geographical regions.
Mahtab Samadi Gorji, Ali Zaman Mirabadi, Kambiz Forozzan, Mostafa Haghpanah,
Volume 5, Issue 2 (3-2019)
Abstract

This experiment was conducted to evaluate genetic diversity in 72 peanut accessions (Arachis hypogaea L.), which introduced from seed bank of Australia in training and seed production research center of oilseeds company, Iran. Twelve major morphological traits recorded during 2013 growing season using a randomized complete block design with three replications. The results showed that the difference between genotypes for all traits was significant. In addition, coefficient of phenotypic variation was greater than coefficient of genotypic variation for all traits, indicating the effect of environment on recorded traits. The broad-sense heritability ranged from 80.25% (for seed width) to 99.54% (for 100 seed weight) and was 96.85% for grain yield. The highest phenotypic and genotypic coefficients of variation obtained for the pod weight, thus, it is possible to improve this trait by selection method and this trait could use as a selection index to improve grain yield. Genetic correlation indicated a high significant correlation between grain yield with grain weight and pod yield. The studied genotypes divided to four groups by cluster analysis based on Ward method.

Reza Mir Drikvand, Kamran Samiei,
Volume 7, Issue 1 (9-2020)
Abstract

Estimation of genetic diversity and evaluation of plant germplasm is the most important step in collection and management of plant genetic resources. Also, comparison of different DNA-based genetic markers in diversity evaluation and then advising the most efficient markers is very important. In order to investigate genetic variation among Persian oak (Quercus brantii Lindi.) populations of Lorestan province (Iran), 20 genotypes were collected from different geographical and climatic regions. After DNA extraction, polymerase chain reactions (PCR) were used for study of polymorphism using three markers including ISJ, ISSR and SCoT. Genotyping was performed using the polymorphic bands obtained from all three markers separately, and also by combining the data of three markers. PCR results of the primers showed 91 polymorphic bands with an average of 71% per locus. The ISSR marker with 44 bands had the most polymorphic bands. Genotypes were discriminated by ISJ, ISSR and SCoT markers in 5, 6 and 5 groups, respectively, and using the combined data of three markers, genotypes were classified in 5 groups (each group included more than one genotype) and 3 group (each group included one genotype).  The results showed that the obtained clustering by different markers were nearly consistent with clustering of genotypes based on the climatic origin of genotypes. The most similarity between the groupings was between ISJ and ISSR markers with 89%. Overall, the results indicated the usefulness of markers used to estimate genetic distances between different oak communities.

Abbas Gholipour, Seyed Kamal Kazemitabar, Sara Sharifi Soltani,
Volume 7, Issue 2 (3-2021)
Abstract

Sweet flag (Acorus calamus) is a perennial, semi-aquatic and aromatic plant of the family Acoraceae that, in addition to its multiple medicinal properties, is used in health, food and agricultural industries (as pest control). This research was conducted to comparasion study of genetic diversity of natural and regenerated plants from tissue culture of Arzefon, Pelesk and Alandan populations of Sweet flag by using ISSR molecular markers. Out of 15 screened primers, 9 primers produced the most polymorphic bands. Totally, these primers generated 83 bands, of which 52 bands (62.65%) were polymorphic. The percentage of polymorphic locus for natural and regenerated plants was 43.37% and 55.42%, respectively, and Nei’s genetic diversity (H) was calculated to be 0.239 for the two studied groups. The Shannon’s index (I) for natural and regenerated plants was estimated to be 0.251 ± 0.033 and 0.299 ± 0.031, respectively. Among the natural and regenerated groups, the highest genetic similarity was observed between the samples of Alandan population (0.63), and the lowest value was observed between the samples of Pelesk population (0.44). Analysis of molecular variance (AMOVA) showed that 94 % of genetic variation attributed to whithin groups and 6 % to between groups. Based on the results, the genetic diversity of the regenerated plants was higher than the natural plants. According to the results of the present research, the lowest rate of genetic divergence was observed between natural and regenerated plants of Alandan populatiuon, so the plants of this population could be suitable for domestication and cultivation in Iran.


Page 1 from 2    
First
Previous
1
 

پژوهش های ژنتیک گیاهی Plant Genetic Researches
Persian site map - English site map - Created in 0.17 seconds with 46 queries by YEKTAWEB 4461