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《Journal of Fujian Agricultural University(Natural Science)》 2003-02
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RAPD analysis of genetic diversity in Capsicum annuum L.

WANG Ling, ZHENG Jingui, LAI Zhongxiong, HE Shuilin (College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China)  
With RAPD markers, the extent of genetic diversity of the seeds of Capsicum annuum were presented. The material included C.a.var.fascioculatunt Irish, C.a.var.longum Sendt, C.a.var.grossum Sendt, C.a.var.conides Irish and some first filial generations of C.a.var.longum Sendt which were collected from Jiangxi, Hunan, Guangxi provinces in China and from the Republic of Korea. A total of 1 258 DNA bands were observed with 14 random primers and about half of them were polymorphic. Average proportion of polymorphic loci was 50%, indicating that the genetic background was narrow within C.annuum. On the basis of the genetic distance, a phylogenetic tree was constructed by UPGMA. All of them were divided. The germplasm resources were divided into 3 subclasses when the value of D was 0.69. The first subclass was C.a.var.grossum Sendt, the second was C.a.var.conides Irish, and the third included C.a.var.fascioculatunt Irish and C.a.var.longum Sendt. The third subclass was further divided into C.a.var.fascioculatunt Irish and C.a.var.longum Sendt when the value of D was 0.75, indicating that among the subclasses of C.annuum L., C.a.var.fascioculatunt Irish related to C.a.var.longum Sendt genetically and then to C.a.var.conides Irish, and C.a.var.grossum Sendt shared larger difference with C.a.var.fascioculatunt Irish and C.a.var.longum Sendt.
【CateGory Index】: S641.3
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