Monophyly or Paraphyly - The Taxonomy of Holcoglossum (Aeridinae: Orchidaceae)
Xiang, Xiaoguo1; Li, Dezhu2; Jin, Xiaohua1; Hu, Hao3; Zhou, Hailang1; Jin, Weitao1; Lai, Yangjun1
2012-12-14
发表期刊PLOS ONE
ISSN1932-6203
卷号7期号:12页码:e52050
摘要Recently, 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
关键词Molecular Phylogeny Bad Taxonomy Classification Dna Evolutionary Taxa Pollination Ancestors Nuclear System
资助信息National Natural Science Foundation of China [31170176]
收录类别SCI
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/16004
专题资源植物与生物技术所级重点实验室
作者单位1.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
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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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