Potential of Start Codon Targeted SCoT Markers to Estimate Genetic Diversity and Relationships among Chinese Elymus sibiricus AccessionsReportar como inadecuado




Potential of Start Codon Targeted SCoT Markers to Estimate Genetic Diversity and Relationships among Chinese Elymus sibiricus Accessions - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

The State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China





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Academic Editor: Derek J. McPhee

Abstract Elymus sibiricus as an important forage grass and gene pool for improving cereal crops, that is widely distributed in West and North China. Information on its genetic diversity and relationships is limited but necessary for germplasm collection, conservation and future breeding. Start Codon Targeted SCoT markers were used for studying the genetic diversity and relationships among 53 E. sibiricus accessions from its primary distribution area in China. A total of 173 bands were generated from 16 SCoT primers, 159 bands of which were polymorphic with the percentage of polymorphic bands PPB of 91.91%. Based upon population structure analysis five groups were formed. The cluster analysis separated the accessions into two major clusters and three sub-clusters, similar to results of principal coordinate analysis PCoA. The molecular variance analysis AMOVA showed that genetic variation was greater within geographical regions 50.99% than between them 49.01%. Furthermore, the study also suggested that collecting and evaluating E. sibiricus germplasm for major geographic regions and special environments broadens the available genetic base and illustrates the range of variation. The results of the present study showed that SCoT markers were efficient in assessing the genetic diversity among E. sibiricus accessions. View Full-Text

Keywords: Elymus sibiricus; SCoT marker; genetic diversity; conservation Elymus sibiricus; SCoT marker; genetic diversity; conservation





Autor: Junchao Zhang, Wengang Xie * , Yanrong Wang * and Xuhong Zhao

Fuente: http://mdpi.com/



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