To evaluate the genetic diversity, four wild wheat species named T. boeticum, T. thaudar, T. urartu, T. arrarticum were studied. Quantitative traits were measured according to IBPGRI. ...
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To evaluate the genetic diversity, four wild wheat species named T. boeticum, T. thaudar, T. urartu, T. arrarticum were studied. Quantitative traits were measured according to IBPGRI. Analysis of variance showed significant difference for all landraces. Result of Pearson correlation analysis showed positive and negative significant correlations between some of the traits. In principle component analysis, four principle components accounted for 59.56 percent of total variation. The first principle component with 29% mainly explained stem width, spikelet length, radicle node length and width, glum length and width and seed width. The second principle component with 12% of total variation explained plant height and spikelet width. While, the third principle component with 10% of total variation, explained leaf number and node number. Moreover, the fourth PCA indicated SNS and seed length. Cluster analysis also classified the landraces into three groups which separated landraces according to species. Result of PCA confirmed the result of cluster analysis as T. arraraticum placed in separated group, indicating that this species is different systematically from other species.
In the present study, 37 microsatellite primerpairs were used for germplasm analysis and estimation of the genetic relationship and diversity between 21 spring and winter genotypes ...
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In the present study, 37 microsatellite primerpairs were used for germplasm analysis and estimation of the genetic relationship and diversity between 21 spring and winter genotypes of Persian breed wheat. Genetic diversity (DI) and polymorphism information content (PIC) were calculated with average 0.68 and 0.63, respectively. Genetic similarity was calculated with Nei & Li and Jaccard methods with average 0.201 and 0.325, respetcively. The highest levels of genetic similarity for genotypes were found in Ghods and Alvand genotypes by two methods and the lowest was in Bolani and Niknejhad with Nei & Li and Jaccard methods.The number of alleles per microsatellite marker varied from 2 to 10 (average 5.37) and a total of 199 alleles were detected. The result showed all of the genotpyes could be distinguished and clustered into 4 groups with Nei & li similarity and UPGMA clustering method and all cultivars segregated by growgth type, i.e spring and winter. The data suggest that microsatellite can be used to estimate high and repeatable Polymorphism genetic diversity.
