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分子系统发育与隐态形态学：结合方法揭示越南紫茉莉科紫茉莉属（Polycarpaea）的分类新种。

Molecular phylogeny and cryptic morphology: A combined approach to taxonomic novelties in Polycarpaea (Caryophyllaceae) from Vietnam.

机构信息

Dalat University, Dalat, Lam Dong Province, Vietnam.

Vietnam Forest Science Institute of Central Highlands and South of Central Vietnam, Vietnam Academy of Forest Science, Dalat, Lam Dong Province, Vietnam.

出版信息

PLoS One. 2024 Oct 16;19(10):e0301407. doi: 10.1371/journal.pone.0301407. eCollection 2024.

DOI:10.1371/journal.pone.0301407
PMID:39413070
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11482727/
Abstract

Three new species of Polycarpaea from Vietnam, Polycarpaea vanphongensis V.T. Tran, H.T. Truong & N.V. Binh, Polycarpaea chungana V.T. Tran, H.T. Truong & N.V. Binh, Polycarpaea phuquocensis V.T. Tran, H.T. Truong & N.V. Binh are described and illustrated based on evidence of molecular sequence data from two markers (ITS1-5.8S-ITS2 and rps16) and combined morphological characteristics. Polycarpaea vanphongensis is closely related to Polycarpaea gaudichaudi Gagnep., Polycarpaea arenaria (Lour.) Gagnep., Polycarpaea phuquocensis V.T. Tran, H.T. Truong & N.V. Binh but differs by its stem glabrous, leaf ovate to elliptic, glabrous, ovary oblong ovoid, base obtuse, apex attenuate, capsule oblong void, 3.8 mm long. Polycarpaea phuquocensis V.T. Tran, H.T. Truong & N.V. Binh differs from the three species mentioned above by its stem being densely villous, leaf spathulate, ciliate, ovary ovoid, base acute, apex obtuse, capsule ovoid, 1.2 mm long. Polycarpaea chungana V.T. Tran, H.T. Truong & N.V. Binh is most similar to Polycarpaea lignosa Gagnep., but differs in having leaf oblong or linear, sparse ciliate, sepal and petal apex deeply concaved or slightly bifid, ovary ovoid, ovoid, 0.8-1.0 mm long. Furthermore, the achievements of analysis using molecular data on the systematic positions of 7 other species are results that have not been in previous molecular analyses.

摘要

描述并图示了来自越南的三种新的 Polycarpaea 物种，即 Polycarpaea vanphongensis V.T. Tran、H.T. Truong & N.V. Binh、Polycarpaea chungana V.T. Tran、H.T. Truong & N.V. Binh、Polycarpaea phuquocensis V.T. Tran、H.T. Truong & N.V. Binh，其依据是来自两个标记（ITS1-5.8S-ITS2 和 rps16）的分子序列数据和综合形态特征。Polycarpaea vanphongensis 与 Polycarpaea gaudichaudi Gagnep.、Polycarpaea arenaria (Lour.) Gagnep.、Polycarpaea phuquocensis V.T. Tran、H.T. Truong & N.V. Binh 密切相关，但茎无毛、叶卵形到椭圆形、无毛、子房长圆形卵形、基部钝、先端渐尖、蒴果长圆形中空、长 3.8 毫米不同。Polycarpaea phuquocensis V.T. Tran、H.T. Truong & N.V. Binh 与上述三个物种的区别在于其茎密被绒毛、叶匙形、具缘毛、子房卵形、基部渐狭、先端钝、蒴果卵形、长 1.2 毫米。Polycarpaea chungana V.T. Tran、H.T. Truong & N.V. Binh 与 Polycarpaea lignosa Gagnep. 最为相似，但在叶长圆形或线性、疏生缘毛、萼片和花瓣先端深凹或稍二裂、子房卵形、卵形、长 0.8-1.0 毫米不同。此外，使用分子数据对其他 7 种物种的系统位置进行分析的结果是之前的分子分析中没有的。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3dd3/11482727/0843cc4f3298/pone.0301407.g008.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3dd3/11482727/a0c2d2bc3dee/pone.0301407.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3dd3/11482727/ddad8f12f3b8/pone.0301407.g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3dd3/11482727/887a06a68720/pone.0301407.g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3dd3/11482727/0843cc4f3298/pone.0301407.g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3dd3/11482727/43101aeb4806/pone.0301407.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3dd3/11482727/59098d52756e/pone.0301407.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3dd3/11482727/86474d538efb/pone.0301407.g003.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3dd3/11482727/a0c2d2bc3dee/pone.0301407.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3dd3/11482727/ddad8f12f3b8/pone.0301407.g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3dd3/11482727/887a06a68720/pone.0301407.g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3dd3/11482727/0843cc4f3298/pone.0301407.g008.jpg

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