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Integrated taxonomy of the Asplenium normale complex (Aspleniaceae) in China and adjacent areas
Chang, Yanfen; Ebihara, Atsushi; Lu, Shugang; Liu, Hongmei; Schneider, Harald
2018
Source PublicationJOURNAL OF PLANT RESEARCH
ISSN0918-9440
Volume131Issue:4Pages:573-587
AbstractThe 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.
Department其他
KeywordAspleniaceae Asplenium Species Complex Morphometric Taxonomy
Subject AreaPlant Sciences
Language英语
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/10977
Collection支撑系统
Recommended Citation
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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