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LI Lihong, HUA Shumei, CHEN Zhihua, et al. Phenotypic Genetic Diversity Research on Dioscorea Landraces of Fujian Province[J]. JOURNAL OF YUNNAN AGRICULTURAL UNIVERSITY(Natural Science), 2016, 31(2): 257-262. DOI: 10.16211/j.issn.1004-390X(n).2016.02.010
Citation: LI Lihong, HUA Shumei, CHEN Zhihua, et al. Phenotypic Genetic Diversity Research on Dioscorea Landraces of Fujian Province[J]. JOURNAL OF YUNNAN AGRICULTURAL UNIVERSITY(Natural Science), 2016, 31(2): 257-262. DOI: 10.16211/j.issn.1004-390X(n).2016.02.010

Phenotypic Genetic Diversity Research on Dioscorea Landraces of Fujian Province

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  • Received Date: January 07, 2015
  • Revised Date: April 15, 2015
  • Published Date: March 29, 2016
  • To study the phenotypic diversity of Dioscorea germplasm resources in Fujian Province, the aims of this research was to provide scientific basis for collection, survey and evaluation, classification and utilization research of Dioscorea germplasm resources. Seventy-two Dioscorea landraces of Fujian Province were studied in this research, 7 numerical characteristics and 12 quantitative characteristics were analyzed and the WPGMA method was adopted to classify resources. The results showed that the coefficient of variation ranged from 13.75%~42.39%,the average coefficient of variation was 33.17% in the 7 numerical characteristics, the largest coefficient of variation was the diameter of tuber, the smallest coefficient of variation was index of leaf shape. In the 12 quantitative characteristics, the genetic diversity index ranged from 0.738 3~1.568 3 with the average of 1.017 3,the largest diversity index values were the texture of leaf and the smallest diversity index were bulbil or not and blossom or not. The clustering analysis showed that all the resources could be divided into 4 groups Dioscorea opposita, D. persimilis, D. fordii and D. alata.The results showed that there was remarkably difference in phenotypic of Dioscorea landraces in Fujian Province, the range of variation was wide, genetic diversity was ample, and the primary cultivated varieties was D.persimilis and D.alatain Fujian region.
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