中国科学院昆明植物研究所机构知识库
Advanced  
KIB OpenIR  > 中国科学院青藏高原研究所昆明部  > 期刊论文
题名: GENETIC VARIATION IN WALNUTS (JUGLANS REGIA AND J. SIGILLATA; JUGLANDACEAE): SPECIES DISTINCTIONS, HUMAN IMPACTS, AND THE CONSERVATION OF AGROBIODIVERSITY IN YUNNAN, CHINA
作者: Gunn, Bee F.1, 2; Aradhya, Mallikarjuna3; Salick, Jan M.1; Miller, Allison J.4; Yang Yongping(杨永平)5; Liu Lin6; Hai Xian6
刊名: AMERICAN JOURNAL OF BOTANY
关键词: agrobiodiversity ; China ; Juglandaceae ; Juglans sigillata ; Juglans regia ; kinship ; microsatellites ; population genetics ; Tibetan ; walnuts ; Yunnan
英文摘要: Walnuts are a major crop of many countries and mostly cultivated in large-scale plantations with few cultivars. Landraces provide important genetic reservoirs; thus, understanding factors influencing the geographic distribution of genetic variation in crop resources is a fundamental goal of agrobiodiversity conservation. Here, we investigated the role of human settlements and kinship on genetic variation and population structure of two walnut species: Juglans regia, an introduced species widely cultivated for its nuts, and J. sigillata, a native species cultivated locally in Yunnan. The objectives of this study were to characterize sympatric populations of J. regia and J. sigillata using 14 molecular markers and evaluate the role of Tibetan villages and kin groups (related households) on genotypic variation and population structure of J. regia and J. sigillata. Our results based on 220 walnut trees from six Tibetan villages show that although J. regia and J. sigillata are morphologically distinct, the two species are indistinguishable based on microsatellite data. Despite the lack of interspecific differences, AMOVAs partitioned among villages (5.41%, P = 0.0068) and kin groups within villages (3.34%, P = 0.0068) showed significant genetic variation. These findings suggest that village environments and familial relationships are factors contributing to the geographic structure of genetic variation in Tibetan walnuts.
中文摘要: Walnuts are a major crop of many countries and mostly cultivated in large-scale plantations with few cultivars. Landraces provide important genetic reservoirs; thus, understanding factors influencing the geographic distribution of genetic variation in crop resources is a fundamental goal of agrobiodiversity conservation. Here, we investigated the role of human settlements and kinship on genetic variation and population structure of two walnut species: Juglans regia, an introduced species widely cultivated for its nuts, and J. sigillata, a native species cultivated locally in Yunnan. The objectives of this study were to characterize sympatric populations of J. regia and J. sigillata using 14 molecular markers and evaluate the role of Tibetan villages and kin groups (related households) on genotypic variation and population structure of J. regia and J. sigillata. Our results based on 220 walnut trees from six Tibetan villages show that although J. regia and J. sigillata are morphologically distinct, the two species are indistinguishable based on microsatellite data. Despite the lack of interspecific differences, AMOVAs partitioned among villages (5.41%, P = 0.0068) and kin groups within villages (3.34%, P = 0.0068) showed significant genetic variation. These findings suggest that village environments and familial relationships are factors contributing to the geographic structure of genetic variation in Tibetan walnuts.
出版日期: 2010-04-01
卷号: 97, 期号:4, 页码:660-671
语种: 英语
收录类别: SCI
学科分类: Plant Sciences
ISSN号: 0002-9122
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/2631
Appears in Collections:中国科学院青藏高原研究所昆明部_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
20110802001.pdf(611KB)----开放获取--View Download

作者单位: 1.Missouri Bot Garden, William L Brown Ctr, St Louis, MO 63166 USA
2.Australian Natl Univ, Res Sch Biol, Div Evolut Ecol & Genet, Canberra, ACT 0200, Australia
3.Univ Calif Davis, USDA, Natl Clonal Germplasm Repository, Davis, CA 95616 USA
4.St Louis Univ, Dept Biol, St Louis, MO 63101 USA
5.CAS, Kunming Inst Bot, Kunming 650204, Yunnan, Peoples R China
6.Shangri La Alpine Bot Garden, Diqing Prefecture, Yunnan, Peoples R China

Recommended Citation:
Gunn, BF; Aradhya, M; Salick, JM; Miller, AJ; Yang, YP; Liu, L; Hai, X.GENETIC VARIATION IN WALNUTS (JUGLANS REGIA AND J. SIGILLATA; JUGLANDACEAE): SPECIES DISTINCTIONS, HUMAN IMPACTS, AND THE CONSERVATION OF AGROBIODIVERSITY IN YUNNAN, CHINA,AMERICAN JOURNAL OF BOTANY,2010,97(4):660-671
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Gunn, Bee F.]'s Articles
[Aradhya, Mallikarjuna]'s Articles
[Salick, Jan M.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Gunn, Bee F.]‘s Articles
[Aradhya, Mallikarjuna]‘s Articles
[Salick, Jan M.]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: 20110802001.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院昆明植物研究所 - Feedback
Powered by CSpace