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Unveiling the Identity of Wenwan Walnuts and Phylogenetic Relationships of Asian Juglans Species Using Restriction Site-Associated DNA-Sequencing

文献类型：期刊论文

作者Mu, Xian-Yun; Sun, Miao4; Yang, Pei-Fang; Lin, Qin-Wen
刊名FRONTIERS IN PLANT SCIENCE
出版日期2017
卷号8
关键词Wenwan walnut Juglans hopeiensis Juglans sigillata 2b-RAD phylogeny
ISSN号1664-462X
DOI10.1016/j.revpalbo.2017.08.006
文献子类Article
英文摘要Juglans species have considerable ecological and economic value worldwide. In China, Wenwan walnuts have been collected by aristocrats and noblemen for more than 2000 years. As a diversity center of Asian Juglans, five species are widely distributed in China. The most famous of these is Mahetao (J. hopeiensis), which is an uncharacterized species that is mostly cultivated. Wild J. hopeiensis individuals are very rare and are endemic to Hebei province. Because of the minimal variations in previously used molecular markers and the heterogeneity between chloroplast and nuclear genomes, determining the phylogenetic relationships among the Juglans species has been challenging, and has hindered subsequent evolutionary inferences. In this study, we collected enough materials for both cultivated and wild Mahetao to construct well-resolved phylogenetic trees for Asian Juglans species. We used a high-throughput genome-wide restriction site-associated DNA sequencing method. Consequently, the identity of J. hopeiensis has been clearly resolved. Our results indicate that J. hopeiensis is a hybrid of J. regia and J. mandshurica. However, J. hopeiensis, J. regia and J. sigillata should be considered as a single species from section Juglans. Additionally, J. ailantifolia, J. cathayensis, and J. mandshurica likely represent one species from section Cardiocaryon according to morphological and molecular studies. These results are supported by population structure analysis and morphological comparison. We propose that J. hopeiensis trees growing in the wild should be conserved because of the economic value of their nuts. These trees may be of particular importance to impoverished communities. Furthermore, they may serve as a valuable genetic resource relevant for enhancing the production of edible walnuts. The 2b-RAD method is a viable option for future phylogenetic studies of Juglans species as well as other plant species.
学科主题Plant Sciences ; Paleontology
出版地LAUSANNE
WOS关键词REGIA ; JUGLANDACEAE ; MODEL ; TOOL ; CONSERVATION ; INFERENCE ; GENOTYPES ; 2B-RAD ; POWER
语种英语
WOS记录号WOS:000417671300007
出版者FRONTIERS MEDIA SA
资助机构Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31400193] ; Science and Technology Service Network Initiative of Chinese Academy of Sciences [KFJ-1W-NO1-16] ; Science and Technology Basic Work of China [2013FY112100]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/22269]  
专题植物园
作者单位1.Chinese Acad Sci, Inst Bot, Beijing Bot Garden, Beijing, Peoples R China
2.White Horse Snow Mt Natl Nat Reserve Adm, Weixi, Yunnan, Peoples R China
3.Univ Florida, Florida Museum Nat Hist, Gainesville, FL 32611 USA
4.Beijing Forestry Univ, Coll Nat Conservat, Lab Systemat Evolut & Biogeog Woody Plants, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Mu, Xian-Yun,Sun, Miao,Yang, Pei-Fang,et al. Unveiling the Identity of Wenwan Walnuts and Phylogenetic Relationships of Asian Juglans Species Using Restriction Site-Associated DNA-Sequencing[J]. FRONTIERS IN PLANT SCIENCE,2017,8.
APA Mu, Xian-Yun,Sun, Miao,Yang, Pei-Fang,&Lin, Qin-Wen.(2017).Unveiling the Identity of Wenwan Walnuts and Phylogenetic Relationships of Asian Juglans Species Using Restriction Site-Associated DNA-Sequencing.FRONTIERS IN PLANT SCIENCE,8.
MLA Mu, Xian-Yun,et al."Unveiling the Identity of Wenwan Walnuts and Phylogenetic Relationships of Asian Juglans Species Using Restriction Site-Associated DNA-Sequencing".FRONTIERS IN PLANT SCIENCE 8(2017).

入库方式： OAI收割

来源：植物研究所

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