Taxonomic note on Parnassia (Celastraceae): the identity of P. nubicola

Ma, Yuntong; Zhou, Hanlu; Shu, Yumin

doi:10.3897/phytokeys.154.54042

Cited by 2 publications

(4 citation statements)

References 9 publications

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“…As inferred from the distribution range and divergence time, P. trinervis, P. filchneri, and P. viridiflora may be the species differentiated from P. oreophila in the process of colonizing to high altitude during Miocene. Hence, we herein supported the taxonomic revisions of P. tibetana and P. nubicola in Ma et al (2020). Individuals of P. trinervis, P. filchneri, and P. viridiflora were nested within each other (Figure 2).…”

Section: Infrageneric Relationships Of Parnassiasupporting

confidence: 82%

“…Although P. lutea was located at the base of Clade I, reflecting it was an earlier element of Clade I, our results did not support its more ancient hypothesis within the genus. Ma et al (2020) proposed that P. tibetana was synonymous to P. nubicola. Likewise, P. tibetana has been resolved as nested within the individuals of P. nubicola, and we did not find any significant molecular differences between P. tibetana and P. nubicola (Figure 2).…”

Section: Infrageneric Relationships Of Parnassiamentioning

confidence: 99%

“…The distribution of Parnassia species in the Pan-Himalayan region often overlaps, and considerable morphological variation may occur within the same species. Scholars often have a different understanding of taxonomic traits, which led to different opinions about the infrageneric classification of the genus, including different ranks as section and series (Drude, 1875;Franchet, 1897;Engler, 1930;Handel-Mazzetti, 1941;Ku, 1987;Wu, 2003Wu, , 2005Shu, 2017), and a plethora of taxonomic revisions (Turner and Veldkamp, 2001;Wu et al, 2004Wu et al, , 2008Wu et al, , 2009Shu andZhang, 2016, 2017;Wang et al, 2018;Yu et al, 2018;Ma et al, 2020;Dai et al, 2021). However, most of these investigations were based on morphological characters and need to be validated with molecular phylogenetic studies.…”

Section: Introductionmentioning

confidence: 99%

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Reassessment of the Phylogeny and Systematics of Chinese Parnassia (Celastraceae): A Thorough Investigation Using Whole Plastomes and Nuclear Ribosomal DNA

Xia

Zhang

et al. 2022

Front. Plant Sci.

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Parnassia L., a perennial herbaceous genus in the family Celastraceae, consists of about 60 species and is mainly distributed in the Pan-Himalayan and surrounding mountainous regions. The taxonomic position and phylogenetic relationships of the genus are still controversial. Herein, we reassessed the taxonomic status of Parnassia and its intra- and inter-generic phylogeny within Celastraceae. To that end, we sequenced and assembled the whole plastid genomes and nuclear ribosomal DNA (nrDNA) of 48 species (74 individuals), including 25 species of Parnassia and 23 species from other genera of Celastraceae. We integrated high throughput sequence data with advanced statistical toolkits and performed the analyses. Our results supported the Angiosperm Phylogeny Group IV (APG IV) taxonomy which kept the genus to the family Celastraceae. Although there were topological conflicts between plastid and nrDNA phylogenetic trees, Parnassia was fully supported as a monophyletic group in all cases. We presented a first attempt to estimate the divergence of Parnassia, and molecular clock analysis indicated that the diversification occurred during the Eocene. The molecular phylogenetic results confirmed numerous taxonomic revisions, revealing that the morphological characters used in Parnassia taxonomy and systematics might have evolved multiple times. In addition, we speculated that hybridization/introgression might exist during genus evolution, which needs to be further studied. Similarly, more in-depth studies will clarify the diversification of characters and species evolution models of this genus.

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Section: Infrageneric Relationships Of Parnassiasupporting

confidence: 82%

Section: Infrageneric Relationships Of Parnassiamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Reassessment of the Phylogeny and Systematics of Chinese Parnassia (Celastraceae): A Thorough Investigation Using Whole Plastomes and Nuclear Ribosomal DNA

Xia

Zhang

et al. 2022

Front. Plant Sci.

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“…Ku were reduced to synonyms of P. nubicola Wall. ex Royle (Ma et al 2020). Meanwhile, some new species were described, including P. zhengyuana M.X.…”

Section: Introductionmentioning

confidence: 99%

Taxonomic note of Parnassia (Celastraceae) in China II: population surveys reveal that P. guilinensis is conspecific to P. xinganensis

Dai¹,

Min²,

Yang³

et al. 2021

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Based on investigation of populations of Parnassia guilinensis and P. xinganensis, examination of herbarium specimens (including types), as well as consultation of protologues and distributions, P. guilinensis is hereby reduced to a synonym of P. xinganensis. P. xinganensis is endemic to northeastern Guangxi Province of China and characterized by having elliptic to ovate leaves and staminodes 3–5-branched with globose glands. Field photographs and an updated morphological description of P. xinganensis are provided.

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Taxonomic note on Parnassia (Celastraceae): the identity of P. nubicola

Abstract: Based on examination of herbarium specimens (including types) and living plants, as well as analysis of protologues and distributions, Parnassia tibetana, P. nubicola subsp. occidentalis, and P. nubicola var. nana are reduced to synonyms of P. nubicola.

Cited by 2 publications

References 9 publications

Reassessment of the Phylogeny and Systematics of Chinese Parnassia (Celastraceae): A Thorough Investigation Using Whole Plastomes and Nuclear Ribosomal DNA

Reassessment of the Phylogeny and Systematics of Chinese Parnassia (Celastraceae): A Thorough Investigation Using Whole Plastomes and Nuclear Ribosomal DNA

Taxonomic note of Parnassia (Celastraceae) in China II: population surveys reveal that P. guilinensis is conspecific to P. xinganensis

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