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题名: High genetic diversity and low genetic differentiation in the relict tree fern Sphaeropteris brunoniana (Cyatheaceae) revealed by amplified fragment length polymorphism (AFLP)
作者: Wang, Zi-Juan1, 2; Guan, Kai-Yun1
刊名: BOTANICAL STUDIES
关键词: AFLP ; Conservation strategy ; Genetic differentiation ; Genetic diversity ; Sphaeropteris brunoniana
英文摘要: Amplified fragment length polymorphism (AFLP) was employed to analyze the population genetics of relict tree fern Sphaeropteris brunoniana. A total of 132 individuals from ten natural populations in China and Laos were collected for this study. Using two selective primers, 234 reliable bands were generated, of which 221 (94.4%) were polymorphic. Genetic analysis indicated an unexpectedly high level of genetic diversity in S. brunoniana (H(i)= 0.333, H(sp)= 0.499), but a low level of genetic differentiation among populations (G(st)= 0.16, phi(ST)= 0.12 and (H(sp)-H(pop))/H(sp)= 0.16). This result may be due to its life traits, evolutionary history and gene flow. Two major genetic groups, one from Yunnan and the other from Hainan-Laos, were detected among the ten investigated populations. The Mantel test correlated this differentiation with geographic distance. However, the different population origins may also have an effect on this differentiation. Based on these findings, implications for conservation strategies of this species in China are discussed.
出版日期: 2011-07-01
卷号: 52, 期号:3, 页码:231-238
语种: 英语
ISSN号: 1817-406X
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内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/5219
Appears in Collections:资源植物与生物技术所级重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, Kunming 650204, Yunnan, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Wang, ZJ; Guan, KY.High genetic diversity and low genetic differentiation in the relict tree fern Sphaeropteris brunoniana (Cyatheaceae) revealed by amplified fragment length polymorphism (AFLP),BOTANICAL STUDIES,2011,52(3):231-238
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