从摇篮到坟墓?喜马拉雅山脉和横断山脉发现的全球热点地区和龙舌兰属新物种。

IF 9.5 1区 生物学 Q1 MYCOLOGY
Persoonia Pub Date : 2022-07-12 Epub Date: 2022-05-14 DOI:10.3767/persoonia.2023.48.04
M X Yang, L S Wang, C C Miao, C Scheidegger
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引用次数: 0

摘要

本研究采用形态学和系统发生学方法评估了东亚绿藻龙舌兰的多样性。采用三焦点和时间校准物种树方法,对 72 个绿藻标本进行了多焦点系统进化分析。分析表明,成对的有性繁殖和无性繁殖品系分裂成高度支持的单系支系。在分类学上,11 个绿藻 Lobaria 物种被确定为科学界的新物种,10 个是以前描述过的物种。这些物种分化于上新世和更新世。古气候事件与估计分化日期的吻合支持了绿藻龙舌兰物种进化的生物气候假说。该研究提供了分子系统发育、多样性概述、详细的新物种描述和地理分析。对进化历史悠久、值得优先保护的物种给予特别认可,这对保护喜马拉雅山和横断山脉受地理限制的特有物种至关重要,因为在这些地区,栖息地的丧失正导致物种数量迅速减少。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
From cradle to grave? A global hotspot and new species of the genus Lobaria discovered in the Himalayas and the Hengduan Mountains.

In this study, the East Asian diversity of green-algal Lobaria was evaluated by applying both morphological and phylogenetic approaches. A multi-locus phylogenetic analysis of 72 green-algal Lobaria specimens was performed using a three-locus and time-calibrated species-tree approach. The analyses demonstrate that pairs of sexually and vegetatively reproducing lineages split into highly supported monophyletic clades. Taxonomically, 11 green-algal Lobaria species were identified as new to science, while 10 were previously described species. The species differentiated during the Pliocene and Pleistocene. The coincidence of paleoclimatic events with estimated dates of divergence support a bioclimatic hypothesis for species evolution in the green-algal Lobaria. Molecular phylogenies, a summary of diversity, detailed new species descriptions and geographical analyses are provided. Special recognition of species with a long evolutionary history, which merit high conservation priority, will be critical for preserving geographically restricted endemics in the Himalayas and the Hengduan Mountains, where habitat loss is driving rapid declines.

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来源期刊
Persoonia
Persoonia MYCOLOGY-
CiteScore
17.70
自引率
5.50%
发文量
10
审稿时长
3 months
期刊介绍: Persoonia aspires to publish papers focusing on the molecular systematics and evolution of fungi. Additionally, it seeks to advance fungal taxonomy by employing a polythetic approach to elucidate the genuine phylogeny and relationships within the kingdom Fungi. The journal is dedicated to disseminating high-quality papers that unravel both known and novel fungal taxa at the DNA level. Moreover, it endeavors to provide fresh insights into evolutionary processes and relationships. The scope of papers considered encompasses research articles, along with topical and book reviews.
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