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Abstract Detail


Biogeography

Su, Yingjuan [1], Wang, Ting [2].

Genetic structure and phylogeographical pattern of Pseudotaxus chienii, an old rare conifer endemic to China, inferred from cpDNA trnL-F noncoding sequences.

The genetic differentiation and phylogeographical pattern of 11 natural populations of Pseudotaxus chienii distributed across Zhejiang, Jiangxi, Hunan and Guangxi, China were inferred from the sequence variations of 116 trnL-F noncoding regions of chloroplast DNA. The length of trnL-F sequences varied from 878-882 bp and the A+T content was 65.08%-66.63%. Haplotypes were identified based on nucleotide variation. Relatively high levels of haplotype diversity (h = 0.847) and low levels of nucleotide diversity (Dij = 0.00233) were detected in P. chienii. An analysis of molecular variance (AMOVA) indicated that most of the genetic variation (67.36%, P < 0.001) were partitioned within populations, showing no obvious genetic differentiation among populations.
Supported by National Natural Science Foundation of China (Grant no.: 30270153)


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1 - Sun Yat-sen University, Biochemistry Department, Xingang Xi Road 135, Guangzhou, Guangdong, 510275, China
2 - Wuhan botanical garden, Chinese Academy of Sciences, Evolutionary genetics, Moshan, Wuhan, Hubei, 430074, China

Keywords:
Pseudotaxus chienii
trnL-F
genetic strucutre
phylogeographical pattern.

Presentation Type: Poster:Posters for Topics
Session: P
Location: Ball Room & Party Room/SUB
Date: Monday, July 28th, 2008
Time: 12:30 PM
Number: PBG003
Abstract ID:283


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