Molecular phylogeny of the subgenus Syrrhophus (Amphibia: Anura: Eleutherodactylidae), with the description of a new species from Eastern Mexico

IF 1.8 3区环境科学与生态学 Q2 BIODIVERSITY CONSERVATION

Systematics and Biodiversity Pub Date : 2022-01-31 DOI:10.1080/14772000.2021.2014597

Raquel Hernández-Austria, U. García-Vázquez, Christoph I. Grünwald, G. Parra-Olea

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引用次数: 4

Abstract

The Eleutherodactylus subgenus Syrrhophus has a complex taxonomic history. For many years the species were classified into series and groups of species based on morphological and allozyme data. However, most of the species have conservative morphology, and their phylogenetic relationships have not been resolved. Furthermore, recent studies employing molecular tools have shown that Syrrhophus diversity is highly underestimated. Here, we present a near-complete phylogenetic hypothesis based on mitochondrial data (16S rRNA, cytochrome c oxidase subunit I, and cytochrome b) and employing maximum likelihood and Bayesian methods. The Bayesian tree has high support values (posterior probabilities ≥0.95) whereas the maximum likelihood hypothesis has generally low values (bootstrap support <70). Both phylogenetic analyses recovered Syrrhophus as monophyletic and composed of four main, allopatric clades (E. symingtoni clade, E. longipes clade, E. modestus clade, and E. nitidus clade) concordant with geography. Based on the molecular and morphological data, we describe a new species from the state of San Luis Potosí, Mexico. The new species is most closely related to E. campi and E. cystignathoides from which it has a genetic distance >7% in 16S rRNA. Finally, based on the phylogenetic results, we resurrect E. rubrimaculatus from synonymy. Our results increase the number of species in the subgenus Syrrhophus to 41. We highlight the importance of efforts to study this important component of Mexican biodiversity. http://zoobank.org/urn:lsid:zoobank.org:pub:3C2B2315-D5C8-420A-938C-A2B3A75B4248

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Syrrhophus亚属的分子系统发育（两栖纲：无尾目：Eleutheroactylidae），以及墨西哥东部一新种的描述

Eleutherodactylus Syrrhophus亚属有着复杂的分类学历史。多年来，根据形态学和等位酶数据将该物种分为系列和组。然而，大多数物种具有保守的形态，它们的系统发育关系尚未得到解决。此外，最近利用分子工具进行的研究表明，Syrrhophus的多样性被严重低估。在这里，我们提出了一个基于线粒体数据（16S rRNA、细胞色素c氧化酶亚基I和细胞色素b）并采用最大似然和贝叶斯方法的近乎完整的系统发育假说。贝叶斯树具有较高的支持值（后验概率≥0.95），而最大似然假说通常具有较低的值（16S rRNA中bootstrap支持率为7%）。最后，根据系统发育结果，我们从同义词中复活了红腹蛛。我们的结果将Syrrhophus亚属的物种数量增加到41个。我们强调努力研究墨西哥生物多样性的这一重要组成部分的重要性。http://zoobank.org/urn:lsid:zoobank.org:pub:3C2B2315-D5C8-420A-938C-A2B3A75B4248

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来源期刊

Systematics and Biodiversity 环境科学-生物多样性保护

CiteScore

4.10

自引率

0.00%

发文量

审稿时长

>24 weeks

期刊介绍： Systematics and Biodiversity is devoted to whole-organism biology. It is a quarterly, international, peer-reviewed, life science journal, without page charges, which is published by Taylor & Francis for The Natural History Museum, London. The criterion for publication is scientific merit. Systematics and Biodiversity documents the diversity of organisms in all natural phyla, through taxonomic papers that have a broad context (not single species descriptions), while also addressing topical issues relating to biological collections, and the principles of systematics. It particularly emphasises the importance and multi-disciplinary significance of systematics, with contributions which address the implications of other fields for systematics, or which advance our understanding of other fields through taxonomic knowledge, especially in relation to the nature, origins, and conservation of biodiversity, at all taxonomic levels. The journal does not publish single species descriptions, monographs or applied research nor alpha species descriptions. Taxonomic manuscripts must include modern methods such as cladistics or phylogenetic analysis.