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基于形态学和分子证据描述中国丹霞山瑞香科（Thymelaeaceae，荛花族）一新种

 (Thymelaeaceae, Daphneae), a new species from Mount Danxia, China based on morphological and molecular evidence.

作者信息

Chen Jing-Rui, Lee Shiou Yih, Guo Jian-Qiang, Jin Jie-Hao, Fan Qiang, Liao Wen-Bo

机构信息

State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China.

Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China.

出版信息

PhytoKeys. 2022 Nov 10;213:67-78. doi: 10.3897/phytokeys.213.91116. eCollection 2022.

DOI:10.3897/phytokeys.213.91116
PMID:36762252
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9836440/
Abstract

A new species, (Thymelaeaceae, Daphneae), from Danxiashan National Park, Shaoguan, Guangdong of China is described and illustrated. It is similar to the sympatric , but can be differentiated easily from the latter by its shorter racemose inflorescences, yellowish green calyx tube, and smaller leaves. It also resembles the allopatric , but differs from it by its strigose-pubescent ovary and disk scale that is 2- or 3-dentate apically. Phylogenetic analysis using the nuclear DNA internal transcribed spacer (ITS) region revealed that falls within the clade; based on current sampling, is closely-related to . It is also the first species of known to be endemic to the Danxia landform and is classified provisionally as Critically Endangered according to the IUCN Red List Categories and Criteria.

摘要

本文描述并图示了一种来自中国广东韶关丹霞山国家公园的新物种（瑞香科，荛花属）。它与同域分布的[某物种]相似，但因其较短的总状花序、黄绿色的花萼管和较小的叶片而易于与后者区分。它也与异域分布的[某物种]相似，但在具糙伏毛的子房和顶端具2或3齿的盘状鳞片方面与之不同。利用核DNA内转录间隔区（ITS）区域进行的系统发育分析表明，[该物种]属于[某类群]分支；基于目前的采样，[该物种]与[某物种]密切相关。它也是已知的首个特有于丹霞地貌的荛花属物种，根据世界自然保护联盟（IUCN）红色名录类别和标准，被暂定为极度濒危物种。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c84c/9836440/3688ba91bf49/phytokeys-213-067_article-91116__-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c84c/9836440/1850562444c2/phytokeys-213-067_article-91116__-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c84c/9836440/237dd37e80cc/phytokeys-213-067_article-91116__-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c84c/9836440/1879d2f58fd4/phytokeys-213-067_article-91116__-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c84c/9836440/3688ba91bf49/phytokeys-213-067_article-91116__-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c84c/9836440/1850562444c2/phytokeys-213-067_article-91116__-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c84c/9836440/237dd37e80cc/phytokeys-213-067_article-91116__-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c84c/9836440/1879d2f58fd4/phytokeys-213-067_article-91116__-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c84c/9836440/3688ba91bf49/phytokeys-213-067_article-91116__-g004.jpg

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本文引用的文献

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Plant Divers. 2021 Nov 11;44(3):279-289. doi: 10.1016/j.pld.2021.11.001. eCollection 2022 May.
2
(Fabaceae), a new species from Guangdong, China, based on molecular and morphological data.基于分子和形态学数据，豆科（Fabaceae）中来自中国广东的一个新物种。
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3
Complete plastomes of six species of Wikstroemia (Thymelaeaceae) reveal paraphyly with the monotypic genus Stellera.
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Sci Rep. 2021 Jun 30;11(1):13608. doi: 10.1038/s41598-021-93057-3.
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MEGA X: Molecular Evolutionary Genetics Analysis across Computing Platforms.MEGA X：跨越计算平台的分子进化遗传学分析。
Mol Biol Evol. 2018 Jun 1;35(6):1547-1549. doi: 10.1093/molbev/msy096.
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MrBayes 3.2: efficient Bayesian phylogenetic inference and model choice across a large model space.MrBayes 3.2：在大型模型空间中进行高效的贝叶斯系统发育推断和模型选择。
Syst Biol. 2012 May;61(3):539-42. doi: 10.1093/sysbio/sys029. Epub 2012 Feb 22.