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Integrated taxonomy of the Asplenium normale complex (Aspleniaceae) in China and adjacent areas
Chang, Yanfen1; Ebihara, Atsushi2; Lu, Shugang3; Liu, Hongmei4; Schneider, Harald1,5
2018-07-01
发表期刊JOURNAL OF PLANT RESEARCH
ISSN0918-9440
卷号131期号:4页码:573-587
摘要The Asplenium normale D. Don complex comprises several taxa that are either diploid or tetraploid. The tetraploids are assumed to have originated from diploid ancestors by relatively recent autopolyploidization or allopolyploidization. Some of the diploids are readily recognized morphologically but most of the taxa have until now been placed into a single species. However, phylogenetic studies have challenged this treatment and emphasized the notion that the taxonomic treatment of this complex needs to be revised. An integrative taxonomic approach was employed to delimit species in the complex using cytological, morphological, and DNA sequence data. Initially, we employed a diploid first approach to establish a robust taxonomic framework. Special efforts were made to collect and identify the diploid progenitors of each polyploid lineage identified in the plastid DNA based phylogenetic hypothesis. A total of six distinct diploid species were identified. The distinctive nature of the six diploids is strongly supported by sequence differences in plastid DNA and nuclear loci, as well as by the results of morphometric analysis. Diagnostic morphological characters were identified to distinguish the six diploid species, resulting in their revised taxonomy, which includes two novel species, namely, Asplenium normaloides and A. guangdongense. Further studies to strengthen the taxonomic classification of all of the tetraploid taxa are warranted.
关键词Aspleniaceae Asplenium Species complex Morphometric Taxonomy
资助信息National Natural Science Foundation of China; Special Funds for the Young Scholars of Taxonomy of the Chinese Academy of Sciences
语种英语
资助项目National Natural Science Foundation of China[31500171] ; Special Funds for the Young Scholars of Taxonomy of the Chinese Academy of Sciences[ZSBR-008]
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文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/61954
专题中国科学院昆明植物研究所
通讯作者Chang, Yanfen
作者单位1.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Ctr Integrat Conservat, Menglun 666303, Yunnan, Peoples R China
2.Natl Museum Nat & Sci, Dept Bot, Tsukuba, Ibaraki, Japan
3.Yunnan Univ, Inst Ecol & Geobot, Kunming 650091, Yunnan, Peoples R China
4.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Gardening & Hort Dept, Menglun 666303, Yunnan, Peoples R China
5.Nat Hist Museum, Dept Life Sci, London SW7 5BD, England
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GB/T 7714
Chang, Yanfen,Ebihara, Atsushi,Lu, Shugang,et al. Integrated taxonomy of the Asplenium normale complex (Aspleniaceae) in China and adjacent areas[J]. JOURNAL OF PLANT RESEARCH,2018,131(4):573-587.
APA Chang, Yanfen,Ebihara, Atsushi,Lu, Shugang,Liu, Hongmei,&Schneider, Harald.(2018).Integrated taxonomy of the Asplenium normale complex (Aspleniaceae) in China and adjacent areas.JOURNAL OF PLANT RESEARCH,131(4),573-587.
MLA Chang, Yanfen,et al."Integrated taxonomy of the Asplenium normale complex (Aspleniaceae) in China and adjacent areas".JOURNAL OF PLANT RESEARCH 131.4(2018):573-587.
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