Genetic Differentiation and Conservation of 14 Surviving Individuals of Euryodendron excelsum Endemic to China
Genetic Differentiation and Conservation of 14 Surviving Individuals of Euryodendron excelsum Endemic to China
Wang Ting1, Su Yingjuan2, Ouyang Puyue2, Jiang Yu2, Sun Yufei2, Chen Guopei2, Deng Feng2, Zhang Hongda2, Ye Huagu3
1.School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China; 2.School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; 3.South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;
Abstract：Random amplification polymorphicDNA(RAPD) markers were used to assess the genetic variations and the evolutionary relationships among all 14 individuals of a critically endangered Euryodendron excelsum (Theaceae) population distributed in Ba Jia Zhen, Yangchun, Guangdong, China. Twenty-three random primers detected 156 sites, out of which 95 (60.26%) were polymorphic loci. The number of the observed alleles was 1.6090, and the number of the effective alleles was 1.3471. Nei s gene diversity was 0.1993, and Shannon index was 0.1534. A relatively high level of genetic variation was identified in E. excelsum. An unweighted pair group method with arithmetic mean (UPGMA) tree established from Jaccard similarity coefficients suggested that 14 individuals were clustered into two subgroups and that the No. 2 plant was genetically distant from the rest of the individuals. The UPGMA clustering was also supported by a principle components analysis of RAPD phenotypic data. The management and conservation strategy of E. excelsum was proposed based on our results.
出版日期: 2006-03-05
引用本文:
. Genetic Differentiation and Conservation of 14 Surviving Individuals of Euryodendron excelsum Endemic to China[J]. Frontiers of Biology in china, 2006, 1(1): 23-28.
Wang Ting, Su Yingjuan, Ouyang Puyue, Jiang Yu, Sun Yufei, Chen Guopei, Deng Feng, Zhang Hongda, Ye Huagu. Genetic Differentiation and Conservation of 14 Surviving Individuals of Euryodendron excelsum Endemic to China. Front. Biol., 2006, 1(1): 23-28.
