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Analysis of Diversity in Chinese Cultivated Barley with Simple Sequence Repeats: Differences Between Eco-Geographic Populations

AuthorsChen, F.; Chen, D.; Vallés Brau, María Pilar CSIC ORCID ; Gao, Z.; Chen, Xi-Wen
Eco-geographic variable Genetic diversity
Genetic diversity
Natural selection
Simple sequence repeats
Issue Date2010
CitationChen F, Chen D, Vallés MP, Gao Z, Chen X. Analysis of Diversity in Chinese Cultivated Barley with Simple Sequence Repeats: Differences Between Eco-Geographic Populations. Biochemical Genetics 48 (1-2): 44-56 (2010)
AbstractThe genetic diversity of 116 barley accessions, representing five Chinese eco-geographic populations, was studied using simple sequence repeat (SSR) markers. The 21 SSR loci revealed 128 alleles with an average of 6.1 alleles per locus. The highest values of proportion of polymorphic loci (P) and gene diversity index (He) were obtained in the Northern (P = 1.00; He = 0.60) and the Yangtze River reaches and Southern populations (P = 1.00; He = 0.59). The lowest values were in the populations of the Yellow River reaches (P = 0.86; He = 0.44). The highest average number of alleles per locus (4.52) and number of unique alleles (7) were found in the Qinghai–Tibet plateau population. Cluster analysis revealed that together with the row type, strong eco-geographic variables influenced the classification. Associations of SSR and eco-geographic values were established for 11 SSR loci. Four to six markers were found to discriminate among geographic groups, which may serve as tools for diagnosis of the eco-geographic populations and provide evidence for the adaptive nature of SSR markers.
Description13 Pags., 1 Fig., 4 Tabls.
Publisher version (URL)http://dx.doi.org/10.1007/s10528-009-9294-7
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