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Investigation and Analysis of Genetic Diversity of Diospyros Germplasms Using SCoT Molecular Markers in Guangxi

文献类型： 外文期刊

作者： Deng, Libao 1 ; Liang, Qingzhi 2 ; He, Xinhua 1 ; Luo, Cong 1 ; Chen, Hu 1 ; Qin, Zhenshi 5 ;

作者机构： 1.Guangxi Univ, Coll Agr, Nanning 530004, Peoples R China

2.Chinese Acad Trop Agr Sci, South Subtrop Crops Res Inst, Natl Field Genebank Trop Fruit, Zhanjiang 524091, Peoples R China

3.Adm Comm Guangxi Baise Natl Agr Sci & Technol Zon, Baise 533612, Peoples R China

4.Guangxi Crop Genet Improvement & Biotechnol Lab, Nanning 530007, Peoples R China

5.Guangxi Subtrop Crop Res Inst, Expt Stn, Chongzuo 532415, Peoples R China

期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）

ISSN： 1932-6203

年卷期： 2015 年 10 卷 8 期

页码：

收录情况： SCI

摘要： Background Knowledge about genetic diversity and relationships among germplasms could be an invaluable aid in diospyros improvement strategies. Methods This study was designed to analyze the genetic diversity and relationship of local and natural varieties in Guangxi Zhuang Autonomous Region of China using start codon targeted polymorphism (SCoT) markers. The accessions of 95 diospyros germplasms belonging to four species Diospyros kaki Thunb, D. oleifera Cheng, D. kaki var. silverstris Mak, and D. lotus Linn were collected from different eco-climatic zones in Guangxi and were analyzed using SCoT markers. Results Results indicated that the accessions of 95 diospyros germplasms could be distinguished using SCoT markers, and were divided into three groups at similarity coefficient of 0.608; these germplasms that belong to the same species were clustered together; of these, the degree of genetic diversity of the natural D. kaki var. silverstris Mak population was richest among the four species; the geographical distance showed that the 12 natural populations of D. kaki var. silverstris Mak were divided into two groups at similarity coefficient of 0.19. Meanwhile, in order to further verify the stable and useful of SCoT markers in diospyros germplasms, SSR markers were also used in current research to analyze the genetic diversity and relationship in the same diospyros germplasms. Once again, majority of germplasms that belong to the same species were clustered together. Thus SCoT markers were stable and especially useful for analysis of the genetic diversity and relationship in diospyros germplasms. Discussion The molecular characterization and diversity assessment of diospyros were very important for conservation of diospyros germplasm resources, meanwhile for diospyros improvement.

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