Genetic variation and conservation assessment of Chinese populations of Magnolia cathcartii (Magnoliaceae), a rare evergreen tree from the South-Central China hotspot in the Eastern Himalayas
Zhang, Xue-Mei1,2; Wen, Jun3; Dao, Zhi-Ling1; Motley, Timothy J.4,5; Long, Chun-Lin1,5
2010-05-01
发表期刊JOURNAL OF PLANT RESEARCH
ISSN0918-9440
卷号123期号:3页码:321-331
摘要Nine natural populations of the rare evergreen tree Magnolia cathcartii (Magnoliaceae) were sampled across its natural range, and amplified fragment length polymorphism (AFLP) markers were used to assess genetic variation within and among populations. Three ex situ populations were also surveyed to determine whether conservation plantings include the entire genetic diversity of the species. Genetic diversity within the natural populations was very low (0.122 for Nei's gene diversity), and the southeast populations had the highest diversity. The ex situ populations had a lower diversity than the mean diversity for all populations, and none of the ex situ populations reached the levels of diversity found in their source populations. Genetic differentiation was high among natural populations (G (st) = 0.247), and an isolation-by-distance pattern was detected. Habitat fragmentation, restricted gene flow, and geitonogamy are proposed to be the primary reasons for the low genetic diversity and high genetic differentiation. More protection is needed, especially for the southeast populations, which possess the highest numbers of unique alleles according to AFLP fragment analyses. The ex situ program was a good first step towards preserving this species, but the current ex situ populations preserve only a limited portion of its genetic diversity. Future ex situ efforts should focus on enhancing the plantings with individuals from southeastern Yunnan.
关键词Breeding System Conservation Fragmentation Magnolia Cathcartii Gene Flow Genetic Diversity
资助信息This work was supported by the Ministry of Education of China through its 111 Project (B08044, CUN 985-3-3), the Ministry of Science and Technology of China (2005DKA21006), the USA National Science Foundation (DEB-0103795), and the Knowledge Innovation Program of the Chinese Academy of Sciences. The authors thank Dr. Hong-Guang Zha and Dr. Yong-Hong Zhang for helpful suggestions during the experiments, Dr. Hong-Tao Li and Dr. Ying-Xiong Qiu for assistance in data analysis, and Dr. Xue-Fei Yang for providing the base map for Fig. 1.
学科领域Plant Sciences
DOI10.1007/s10265-009-0278-9
收录类别SCI
语种英语
WOS研究方向Plant Sciences
WOS类目Plant Sciences
WOS记录号WOS:000277025000009
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/2309
专题资源植物与生物技术所级重点实验室
作者单位1.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Yunnan, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Smithsonian Inst, Natl Museum Amer Hist, Dept Bot, Washington, DC 20013 USA
4.Old Dominion Univ, Dept Biol Sci, Norfolk, VA 23529 USA
5.Cent Univ Nationalities, Coll Life & Environm Sci, Beijing 100081, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Xue-Mei,Wen, Jun,Dao, Zhi-Ling,et al. Genetic variation and conservation assessment of Chinese populations of Magnolia cathcartii (Magnoliaceae), a rare evergreen tree from the South-Central China hotspot in the Eastern Himalayas[J]. JOURNAL OF PLANT RESEARCH,2010,123(3):321-331.
APA Zhang, Xue-Mei,Wen, Jun,Dao, Zhi-Ling,Motley, Timothy J.,&Long, Chun-Lin.(2010).Genetic variation and conservation assessment of Chinese populations of Magnolia cathcartii (Magnoliaceae), a rare evergreen tree from the South-Central China hotspot in the Eastern Himalayas.JOURNAL OF PLANT RESEARCH,123(3),321-331.
MLA Zhang, Xue-Mei,et al."Genetic variation and conservation assessment of Chinese populations of Magnolia cathcartii (Magnoliaceae), a rare evergreen tree from the South-Central China hotspot in the Eastern Himalayas".JOURNAL OF PLANT RESEARCH 123.3(2010):321-331.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
201112050065.pdf(403KB) 开放获取--请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhang, Xue-Mei]的文章
[Wen, Jun]的文章
[Dao, Zhi-Ling]的文章
百度学术
百度学术中相似的文章
[Zhang, Xue-Mei]的文章
[Wen, Jun]的文章
[Dao, Zhi-Ling]的文章
必应学术
必应学术中相似的文章
[Zhang, Xue-Mei]的文章
[Wen, Jun]的文章
[Dao, Zhi-Ling]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。