AOBPreview published online on May 14, 2004
Annals of Botany, doi:10.1093/aob/mch119
© 2004 by Annals of Botany Company
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Submitted on August 7, 2003
Affiliation of the authors:
1 Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China;
2 South China Institute of Botany, Chinese Academy of Sciences, Guangzhou 510650, China;
3 Yunnan Agriculture University, Kunming 650201, China
* To whom correspondence should be addressed. E-mail: gongxun{at}mail.kib.ac.cn.
• Background and Aims Cycas guizhouensis (Cycadaceae) is a rare and endangered species endemic to the southwest of China. An investigation was undertaken into the genetic variation of wild populations. • Methods ISSR markers were used to determine the genetic variation within and between 12 extant populations of this species. • Key Results Low genetic diversity (at population level, P = 14·21 %, HE = 0·0597; at species level, P = 35·90 %, HT = 0·1082) and a high degree of differentiation among populations (GST = 0·4321) were detected. • Conclusions This genetic structure is considered to be due to the combined effects of slow biochemical evolution, genetic drift, inbreeding and limited gene flow between populations. Based on these findings, strategies are proposed for the genetic conservation and management of the species.
Revised on January 14, 2004
Accepted on March 15, 2004
ISSR Variation in the Endemic and Endangered Plant Cycas guizhouensis (Cycadaceae)
LONG-QIAN XIAO1,
Key words: Conservation genetics, Cycas guizhouensis, genetic diversity, ISSR.
CiteULike 
Connotea 
Del.icio.us What's this?
This article has been cited by other articles:
|
|
 |
|
  S. LUAN, T.-Y. CHIANG, and X. GONG High Genetic Diversity vs. Low Genetic Differentiation in Nouelia insignis (Asteraceae), a Narrowly Distributed and Endemic Species in China, Revealed by ISSR Fingerprinting Ann. Bot., September 1, 2006; 98(3): 583 - 589. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
L.-Q. XIAO and X. GONG Genetic Differentiation and Relationships of Populations in the Cycas balansae Complex (Cycadaceae) and its Conservation Implications Ann. Bot., May 1, 2006; 97(5): 807 - 812. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
X.-J. GE, Y. YU, Y.-M. YUAN, H.-W. HUANG, and C. YAN Genetic Diversity and Geographic Differentiation in Endangered Ammopiptanthus (Leguminosae) Populations in Desert Regions of Northwest China as Revealed by ISSR Analysis Ann. Bot., April 1, 2005; 95(5): 843 - 851. [Abstract] [Full Text] [PDF]
|
|