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新的形态学和DNA证据支持中国存在毛枝木蓼（蓼科，木蓼族）。

New morphological and DNA evidence supports the existence of Z. M. Mao (Calligoneae, Polygonaceae) in China.

作者信息

Shi Wei, Liu Pei-Liang, Wen Jun, Feng Ying, Pan Borong

机构信息

Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, 830011, Urumqi, China Turpan Eremophytes Botanic Garden, Chinese Academy of Sciences Turpan China.

Turpan Eremophytes Botanic Garden, Chinese Academy of Sciences, 838008, Turpan, China Xinjiang Institute of Ecology and Geography Urumqi China.

出版信息

PhytoKeys. 2019 Sep 30;132:53-73. doi: 10.3897/phytokeys.132.34981. eCollection 2019.

DOI:10.3897/phytokeys.132.34981
PMID:31607786
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6779677/
Abstract

Z. M. Mao, a species regarded as endemic to China, was thought to be nonexistent owing to a lack of scientific records. The similarity of to Turcz. warranted an investigation into the taxonomical relationship between these species. In this study, a naturally occurring population of was discovered and the taxonomical relationships of this species with were resolved. Morphological traits, including fruit and flower characteristics, as well as nuclear (ETS, ITS) and chloroplast (, , , L, and ) DNA sequence data were studied to confirm the taxonomic status of . The nrDNA data (ITS1-2 and ETS) from reflected variability from the whole complex, showing distinctive haplotypes in the Calligonum sect. Medusa Sosk. & Alexandr. The cpDNA data supplied similar evidence, showing unique branching in Bayesian and ML tree analyses. The specific status of is confirmed based on both morphological and molecular analyses. Here we present a revised description of along with its DNA barcode and discuss suggestions for the conservation of this species. Based on current evidence, this species was evaluated as Critically Endangered (CR) according to the IUCN criteria.

摘要

Z. M. Mao，一种曾被认为是中国特有的物种，由于缺乏科学记录，曾被认为已经不存在了。它与Turcz.的相似性促使人们对这些物种之间的分类关系进行调查。在本研究中，发现了一个自然存在的Z. M. Mao种群，并解决了该物种与Turcz.的分类关系。研究了包括果实和花朵特征在内的形态特征，以及核（ETS、ITS）和叶绿体（、、、L和）DNA序列数据，以确认Z. M. Mao的分类地位。来自Z. M. Mao的nrDNA数据（ITS1 - 2和ETS）反映了整个Z. M. Mao复合体的变异性，在沙拐枣属的Medusa Sosk. & Alexandr.组中显示出独特的单倍型。叶绿体DNA数据提供了类似的证据，在贝叶斯和最大似然树分析中显示出独特的分支。基于形态学和分子分析，Z. M. Mao的物种地位得到了确认。在此，我们给出了Z. M. Mao的修订描述及其DNA条形码，并讨论了该物种的保护建议。根据目前的证据，按照国际自然保护联盟（IUCN）的标准，该物种被评估为极度濒危（CR）。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b22/6779677/b1942deeb439/phytokeys-132-053-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b22/6779677/43d72077ca36/phytokeys-132-053-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b22/6779677/51f25ccc7fd4/phytokeys-132-053-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b22/6779677/0c41020270cd/phytokeys-132-053-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b22/6779677/346d32c59a68/phytokeys-132-053-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b22/6779677/43aad2b8944e/phytokeys-132-053-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b22/6779677/b1942deeb439/phytokeys-132-053-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b22/6779677/43d72077ca36/phytokeys-132-053-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b22/6779677/51f25ccc7fd4/phytokeys-132-053-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b22/6779677/0c41020270cd/phytokeys-132-053-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b22/6779677/346d32c59a68/phytokeys-132-053-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b22/6779677/43aad2b8944e/phytokeys-132-053-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b22/6779677/b1942deeb439/phytokeys-132-053-g006.jpg

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