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Analysis of Genetic Diversity in Chrysopogon aciculatus Using Intersimple Sequence Repeat and Sequence-related Amplified Polymorphism Markers

文献类型： 外文期刊

作者： Zhang, Xinyi 1 ; Liao, Li 1 ; Wang, Zhiyong 1 ; Bai, Changjun 2 ; Liu, Jianxiu 3 ;

作者机构： 1.Hainan Univ, Key Lab Protect & Dev Utilizat Trop Crop Germplas, Minist Educ, Coll Agr, Haikou 570228, Hainan, Peoples R China

2.Chinese Acad Trop Agr Sci, Trop Pasture Res Ctr, Danzhou 571700, Hainan, Peoples R China

3.Jiangsu Prov & Chinese Acad Sci, Inst Bot, Nanjing 210014, Jiangsu, Peoples R China

关键词： genetic relationship;UPGMA;cluster analysis;intersimple sequence repeat;sequence-related amplified polymorphism

期刊名称：HORTSCIENCE （ 影响因子：1.455； 五年影响因子：1.617 ）

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收录情况： SCI

摘要： Molecular genetic diversity and relationships among 86 Chrysopogon aciculatus (Retz.) Trin. accessions were assessed using intersimple sequence repeat (ISSR) and sequence-related amplified polymorphism (SRAP) markers. Twenty-five ISSR markers generated 283 amplification bands, of which 266 were polymorphic. In addition, 576 polymorphic bands were detected from 627 bands amplified using 30 SRAP primers. Both marker types revealed a high level of genetic diversity, with ISSR markers showing a higher proportion of polymorphic loci (PPL; 94%) than SRAP markers (91.87%). The ISSR and SRAP data were significantly correlated (r = 0.8023). Cluster analysis of the separate ISSR and SRAP data sets clustered the accessions into three groups, which generally were consistent with geographic provenance. Cluster analysis of the combined ISSR and SRAP data set revealed four major groups similar to those based solely on ISSR or SRAP markers. The findings demonstrate that ISSR and SRAP markers are reliable and effective tools for analysis of genetic diversity in C. aciculatus.

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