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基于形态特征和分子证据描述的来自中国的石松科一新物种。

 (Lycopodiaceae), a new species from China based on morphological characters and molecular evidence.

作者信息

Guo Zhi-You, Liu Hong-Mei, Wang Kai-Kai, Fujiwara Tao, Liu Zheng-Yu, Zhang Xian-Chun, Schneider Harald

机构信息

College of Biological Sciences and Agriculture, Qiannan Normal College for Nationalities, Duyun 558000, Guizhou, China Qiannan Normal College for Nationalities Duyun China.

Center for Integrative Conservation & Yunnan Key Laboratory for Conservation of Tropical Rainforests and Asian Elephants, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Menglun 666303, Yunnan, China Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences Mengla China.

出版信息

PhytoKeys. 2024 Aug 28;246:27-42. doi: 10.3897/phytokeys.246.131046. eCollection 2024.

DOI:10.3897/phytokeys.246.131046
PMID:39239322
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11375336/
Abstract

A new species of the firmoss from China, sp. nov., is described and illustrated based on morphological characters and molecular evidence. The new species resembles species associated with the complex, in particular based on leaf shape and serrations, but can be easily distinguished by elliptic lanceolate and thick coriaceous leaves, well differentiated seasonal constriction zones, and reflexed leaf margins when get dried. Phylogenomic reconstruction using whole chloroplast genome sequences recovered as sister to and only distantly related to morphological similar species , , and The genome size 2C = 17.2 pg indicated the new species to be a tetraploid, whereas diploid had a genome size of 8.7 pg. Morphological characters, distribution, and conservation status of the new species are also presented.

摘要

基于形态特征和分子证据，描述并图示了中国扁枝藓属的一个新物种，新物种。该新物种类似于与复合体相关的物种，特别是基于叶形和锯齿，但可以通过椭圆形披针形和厚革质的叶子、明显分化的季节性收缩区以及干燥时反折的叶缘很容易地加以区分。使用全叶绿体基因组序列进行的系统基因组重建显示，与为姐妹关系，与形态相似的物种、和仅为远缘关系。基因组大小2C = 17.2 pg表明该新物种为四倍体，而二倍体的基因组大小为8.7 pg。还介绍了新物种的形态特征、分布和保护状况。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17d4/11375336/bd2ceaa9920d/phytokeys-246-027_article-131046__-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17d4/11375336/3ae6580b81bd/phytokeys-246-027_article-131046__-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17d4/11375336/4cabf152b321/phytokeys-246-027_article-131046__-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17d4/11375336/931331178cfe/phytokeys-246-027_article-131046__-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17d4/11375336/7095e12784d7/phytokeys-246-027_article-131046__-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17d4/11375336/bd2ceaa9920d/phytokeys-246-027_article-131046__-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17d4/11375336/3ae6580b81bd/phytokeys-246-027_article-131046__-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17d4/11375336/4cabf152b321/phytokeys-246-027_article-131046__-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17d4/11375336/931331178cfe/phytokeys-246-027_article-131046__-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17d4/11375336/7095e12784d7/phytokeys-246-027_article-131046__-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/17d4/11375336/bd2ceaa9920d/phytokeys-246-027_article-131046__-g005.jpg

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Molecular phylogenetics and the morphology of the Lycopodiaceae subfamily Huperzioideae supports three genera: Huperzia, Phlegmariurus and Phylloglossum.石松科马尾杉亚科的分子系统发育和形态学支持三个属：石杉属、马尾杉属和舌叶蕨属。
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