1. Genetic diversity and differentiation within three species of the family Lauraceae in southeast China
- Author
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Zhang, Rui, Zhou, Zhichun, Jin, Guoqing, Wang, Shenghua, and Wang, Xiuhua
- Subjects
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LAURACEAE , *PLANT species , *PLANT genetics , *PLANT populations , *GENETIC polymorphisms in plants , *GENETIC markers in plants , *COMPARATIVE studies - Abstract
Abstract: A comparative analysis was undertaken of the genetic diversity and genetic structure of three coordinal tree species from southeastern China. The species Phoebe chekiangensis C.B. Shang, Phoebe bournei (Hemsl.) Yang and Machilus pauhoi kanehira are all valued for their timber. Nine populations from two provinces were screened for variability with ISSR markers. Percentage of polymorphic loci, Nei''s gene diversity, and Shannon''s index were lower in P. chekiangensis (PPL% = 78.8%, h = 0.2301, and I = 0.3522) than in P. bournei (PPL% = 90.3%, h = 0.3223, and I = 0.4776) or M. pauhoi kanehira (PPL% = 92.0%, h = 0.3714, and I = 0.5412). Larger populations were found to possess greater genetic diversity. Distinct genetic differentiation was found to have taken place in P. bournei, and barrier analysis showed two barriers in the four populations studied. Special environments were found to influence population differentiation. [Copyright &y& Elsevier]
- Published
- 2012
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