Species identification, genetic diversity and population structure of sweet cherry commercial cultivars assessed by SSRs and the gametophytic selfincompatibility locus

文献类型： 外文期刊

第一作者： Liu, Congli

作者： Liu, Congli;Qi, Xiliang;Song, Lulu;Li, Yuhong;Li, Ming

作者机构：

关键词： Prunus avium L.; Genetic diversity; Population structure; SSR markers; S-genotype

期刊名称：SCIENTIA HORTICULTURAE （ 影响因子：3.463； 五年影响因子：3.672 ）

ISSN： 0304-4238

年卷期： 2018 年 237 卷

页码：

收录情况： SCI

摘要： Assessing the genetic diversity and population structure of sweet cherry is essential for the efficient preservation of germplasms and exploitation of genetic resources In this study, 10 highly polymorphic simple sequence repeat markers, combined with the gametophytic self-incompatibility locus, were used to evaluate the genetic diversity levels, phylogenetic relationships and population structure among 95 sweet cherry commercial cultivars A total of 67 alleles were detected, with a mean of 6.09 alleles per locus In total, five out of 10 simple sequence repeat primers chose according to their polymorphism information content values were able to completely differentiate 95 accessions based on S-genotype information The un-weighted pair group method with arithmetic mean dendrogram and model-based structural analysis clearly divided the accessions into three distinct populations (Pop 1, 2 and 3) that were consistent with their pedigree-based relationships Pop 1 and Pop 2 contained 82% of the analyzed accessions and some admixed accessions dispersed between the populations Pop 3 mainly included sweet cherry cultivars from the Ukraine and their descendants This study provides an efficient method for species identification and demonstrates its potential application in analyzing genetic fingerprints and diversity levels, as well as verifying parentage, in sweet cherry.

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