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Genetic Diversity of Carpetgrass Germplasm Based on Simple Sequence Repeat Markers

文献类型： 外文期刊

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

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

2.Hainan Univ, Coll Agr, Haikou 570228, Peoples R China

3.Chinese Acad Trop Agr Sci, Trop Pasture Res Ctr, Hainan Danzhou 571737, Peoples R China

关键词： Axonopus compressus (Sw.) Beauv.;germplasm resources;genetic relationship;molecular markers;UPGMA cluster analysis

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

ISSN：

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收录情况： SCI

摘要： Carpetgrass [Axonopus compressus (Sw.) Beauv.] is an important warm-season perennial, turfgrass that is widely used in tropical and subtropical areas. The genetic diversity of 63 carpetgrass accessions in China was studied using simple sequence repeat (SSR) markers. Fourteen SSR primer combinations generated a total of 49 distinct bands, 48 (97.96%) of which were polymorphic. The number of observed alleles ranged from 2 to 6, with an average of 3.5. Coefficients of genetic similarity among the accessions ranged from 0.24 to 0.98. Unweighted pair-group method with arithmetic means (UPGMA) clustered the 63 accessions into three groups, and not all samples from the same region belonged to the same group. SSR markers will promote marker-assisted breeding and the assessment of genetic diversity in wild germplasm resources of carpetgrass.

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