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Monophyly or Paraphyly - The Taxonomy of Holcoglossum (Aeridinae: Orchidaceae)
Xiang, Xiaoguo1; Li, Dezhu2; Jin, Xiaohua1; Hu, Hao3; Zhou, Hailang1; Jin, Weitao1; Lai, Yangjun1
Corresponding AuthorJin, XH (reprint author), Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing, Peoples R China.,
Source PublicationPLOS ONE
AbstractRecently, there have been a lot of intense debates about the acceptance/rejection of paraphyletic groups in biological classification. On the one hand, evolutionary classification states that similarity and common descent are two criteria for biological classification and paraphyletic groups are natural units of biological classification. On the other hand, cladistic classification considers that common descent is the only criterion in biological classification and monophyly should be strictly adhered to. Holcoglossum is used herein as a case to illustrate this problem. Although Holcoglossum is a small orchid genus of less than 20 species, there is little consensus about its generic circumscription since it was established, which leads to confusion in taxonomic treatments in the Aerides-Vanda group. Based on the analyses of molecular and morphological evidence, our results suggest that the clade comprising Holcoglossum s.s., Ascolabium, Penkimia and Ascocentrum himalaicum is strongly supported as a monophyly, and that the three taxa are nested within different subclades of Holcoglossum s.s. Thus, it is reasonable to recognize a monophyletic circumscription of Holcoglossum, which is also well supported by some vegetative and floral characters. The Holcoglossum s.l. would facilitate a better understanding of pollinator-driven floral divergence and vegetative stasis than a paraphyletic and narrowly defined genus. Citation: Xiang X, Li D, Jin X, Hu H, Zhou H, et al. (2012) Monophyly or Paraphyly- The Taxonomy of Holcoglossum (Aeridinae: Orchidaceae). PLoS ONE 7(12): e52050. doi:10.1371/journal.pone.0052050
KeywordMolecular Phylogeny Bad Taxonomy Classification Dna Evolutionary Taxa Pollination Ancestors Nuclear System
Subject AreaMultidisciplinary Sciences
Indexed BySCI
WOS IDWOS:000312386800134
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Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming, Yunnan, Peoples R China
3.Xian Bot Garden, Xian, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Xiang, Xiaoguo,Li, Dezhu,Jin, Xiaohua,et al. Monophyly or Paraphyly - The Taxonomy of Holcoglossum (Aeridinae: Orchidaceae)[J]. PLOS ONE,2012,7(12):e52050.
APA Xiang, Xiaoguo.,Li, Dezhu.,Jin, Xiaohua.,Hu, Hao.,Zhou, Hailang.,...&Lai, Yangjun.(2012).Monophyly or Paraphyly - The Taxonomy of Holcoglossum (Aeridinae: Orchidaceae).PLOS ONE,7(12),e52050.
MLA Xiang, Xiaoguo,et al."Monophyly or Paraphyly - The Taxonomy of Holcoglossum (Aeridinae: Orchidaceae)".PLOS ONE 7.12(2012):e52050.
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