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Home > Archive>Volume 19, Issue 3, 2018 >498-509. DOI:10.13430/j.cnki.jpgr.2018.03.015
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Genetic structure and Core Collection of common wild rice, Oryza rufipogon Griff., in Guangxi
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Rice Research Institute of Guangxi Academy of Agricultural Sciences,Guangxi Nanning, Guangxi Key Laboratory of Rice Genetics and Breeding,Guangxi Nanning,Rice Research Institute of Guangxi Academy of Agricultural Sciences,Guangxi Nanning, Guangxi Key Laboratory of Rice Genetics and Breeding,Guangxi Nanning,Rice Research Institute of Guangxi Academy of Agricultural Sciences,Guangxi Nanning, Guangxi Key Laboratory of Rice Genetics and Breeding,Guangxi Nanning

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    Abstract:

    To explore genetic diversity and population structure of common wild rice of Guangxi, we investigated patterns of genetic diversity in a large collection comprising 4173 common wild rice germplasms from 14 cities in Guangxi using 64 molecular markers on 12 chromosomes of rice. The result showed that a total of 1180 alleles were detected with a mean of 18.4375 alleles per locus. Mean Shannon index was 0.64 and mean Nei index was 1.7367. The genetic diversity of common wild rice in Guangxi showed very abundant. A core collection representing the genetic diversity of these germplasms was identified using priority preservation-stepwise cluster method. Thus, a core collection bank of common wild rice including 351 germplasm, which accounted for 8.41% of total germplasm, was constructed.

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History
  • Received:December 24,2017
  • Revised:February 14,2018
  • Adopted:March 10,2018
  • Online: May 08,2018
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