Genetic diversity and phylogenetic relationship of Tadehagi in southwest China evaluated by inter-simple sequence repeat (ISSR)
文献类型: 外文期刊
作者: Liu, Diqiu 2 ; He, Xin 1 ; Liu, Guodao 3 ; Huang, Bizhi 1 ;
作者机构: 1.Yunnan Beef Cattle & Pasture Res Ctr, Kunming 650212, Yunnan, Peoples R China
2.Kunming Univ Sci & Technol, Fac Life Sci & Technol, Kunming 650224, Yunnan, Peoples R China
3.Chinese Acad Trop Agr Sci, China Inst Trop Crop Genet Resources, Danzhou 571737, Hainan, Peoples R China
关键词: inter-simple sequence repeat: ISSR;genetic variation;morphology;genetic diversity;phylogenetic relationship;genetic similarity;plant distribution;germplasm collection;economic trait
期刊名称:GENETIC RESOURCES AND CROP EVOLUTION ( 影响因子:1.524; 五年影响因子:1.713 )
ISSN:
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收录情况: SCI
摘要: There are many valuable Tadehagi accessions in southwest China, but it is unknown that the genetic diversity and phylogenetic relationship of these Tadehagi resources. This report is the first study in which 41 primers of inter-simple sequence repeat (ISSR) were used to assess the genetic diversity of 36 Tadehagi accessions from 3 provinces in the southwest of China. Totally, 30 usable ISSR primers detected 163 polymorphic bands among the 36 accessions, which suggested high utility of ISSR primers in the genetic analysis of Tadehagi accessions. Genetic similarity coefficients among all of the accessions ranged from 0.54 to 0.92 with the average of 0.79 based on the ISSR data, indicating high level of genetic variation in Tadehagi resources from the southwest of China. As for the 3 population, Hainan population had the maximum average genetic similarity coefficients of 0.81, while similarity coefficient of Guangxi and Yunnan population was 0.75 and 0.74, respectively. All the 36 Tadehagi accessions were divided into 4 groups in the UPGMA dendrogram constructed from genetic similarity coefficients. The Tadehagi accessions from Yunnan and Guangxi provinces showed more genetic variation and occupied the bottom of the dendrogram. On the contrary, those from Hainan Province had less genetic variation and clustered in the middle and top of the dendrogram. The information on the genetic diversity and phylogenetic relationship from this study is propitious to construct a core germplasm collection and develop novel Tadehagi cultivars with desired economic traits.
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