Phylogenetic approaches resolve taxonomical confusion in Pedicularis (Orobanchaceae): Reinstatement of Pedicularis delavayi and discovering a new species Pedicularis milliana
Yu, Wen-Bin1,2; Wang, Hong3,4; Liu, Min-Lu3; Grabovskaya-Borodina, Alisa E.5; Li, De-Zhu3,4
2018-07-25
Source PublicationPLOS ONE
ISSN1932-6203
Volume13Issue:7Pages:1
Abstract

Morphological identification of Pedicularis depends on floral characters. However, some important characters may be lost during the process of pressing the specimen. Pedicularis delavayi was described from northwestern Yunnan, and widely adopted as a variety of P. siphonantha. Unfortunately, the name "P. siphonantha var. delavayi incorrectly referred to P. milliana (a new species described in this study) or P. tenuituba in some herbarium specimens and publications. Moreover, phylogenetic relationships among P. delavayi, P. siphonantha and its allies (P. milliana and P. tenuituba) were not fully resolved. In this study, we sampled 76 individuals representing 56 taxa. Of them, 10 taxa were from P. siphonantha lineage, and 11 individuals of P. delavayi represented 9 populations. These species were named as P. siphonantha group on the basis of morphological similarity. Nuclear ribosomal internal transcribed spacer (nrITS) and four chloroplast genes/regions were used for phylogenetic analyses. Phylogenetic analyses showed that the P. siphonantha group was polyphyletic: P. delavayi was sister to P. obliquigaleata in Glade A; and the remaining species of P. siphonantha group were monophyletic in Glade B, named as P. siphonantha lineage. In the P. siphonantha lineage, P. milliana, P. siphonantha, and P. tenuituba were well supported as monophyletic, and P. dolichosiphon was sister to P. leptosiphon. Morphologically, P. de/avayidiffers from species of the P. siphonantha lineage in having a long petiole (similar to 50 mm) and pedicel (similar to 40 mm), a ridged corolla tube, and a folded lower-lip of the corolla. Therefore, both morphological characters and phylogenetic evidence strongly supported to reinstate P. delavayi as an independent species and describe P. milliana as new species. In addition, P. neolatituba was proposed to reduce as a new synonymy of P. delavayi.

DOI10.1371/journal.pone.0200372
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Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/61698
Collection中国科学院东亚植物多样性与生物地理学重点实验室
Affiliation1.Chinese Acad Sci, Ctr Integrat Conservat, Xishuangbanna Trop Bot Garden, Mengla, Peoples R China
2.Chinese Acad Sci, Southeast Asia Biodivers Res Inst, Yezin, Nay Pyi Taw, Myanmar
3.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming, Yunnan, Peoples R China
4.Chinese Acad Sci, Kunming Inst Bot, Plant Germplasm & Genom Ctr, Germplasm Bank Wild Species, Kunming, Yunnan, Peoples R China
5.Komarov Bot Inst, Prof Popov Str, St Petersburg, Russia
Recommended Citation
GB/T 7714
Yu, Wen-Bin,Wang, Hong,Liu, Min-Lu,et al. Phylogenetic approaches resolve taxonomical confusion in Pedicularis (Orobanchaceae): Reinstatement of Pedicularis delavayi and discovering a new species Pedicularis milliana[J]. PLOS ONE,2018,13(7):1.
APA Yu, Wen-Bin,Wang, Hong,Liu, Min-Lu,Grabovskaya-Borodina, Alisa E.,&Li, De-Zhu.(2018).Phylogenetic approaches resolve taxonomical confusion in Pedicularis (Orobanchaceae): Reinstatement of Pedicularis delavayi and discovering a new species Pedicularis milliana.PLOS ONE,13(7),1.
MLA Yu, Wen-Bin,et al."Phylogenetic approaches resolve taxonomical confusion in Pedicularis (Orobanchaceae): Reinstatement of Pedicularis delavayi and discovering a new species Pedicularis milliana".PLOS ONE 13.7(2018):1.
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