Combined multigene and morphological analysis reveals lineage-specific diversification of the neotropical freshwater crabs of the genus Fredius Pretzmann, 1967 (Brachyura, Pseudothelphusidae)

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

Systematics and Biodiversity Pub Date : 2022-01-11 DOI:10.1080/14772000.2021.2008042

F. L. Mantelatto, E. Souza-Carvalho, S.R. Araujo, C. Magalhães

引用次数: 3

Abstract

The pseudothelphusid freshwater crabs of the genus Fredius Pretzmann, 1967 are distributed throughout northern South America and currently include 15 species. We investigated the phylogenetic relationship within the genus using mitochondrial (16S rRNA and COI) and nuclear (H3) genes for most of its representatives. Our set of molecular results (10 species) indicate that Fredius, as currently recovered, is formed by species included in three main lineages. In addition, the results revealed inconsistencies in the morphological identification of some species against the molecular positioning in the topology and suggested the presence of cryptic species, which must be morphologically reanalysed.

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结合多基因和形态分析揭示了Fredius Pretzmann属新热带淡水蟹的谱系特异性多样化(腕足目，假丝蟹科)

Fredius Pretzmann属的假thelphids淡水蟹，1967分布于南美洲北部，目前包括15种。我们利用线粒体(16S rRNA和COI)和细胞核(H3)基因对其大多数代表进行了系统发育关系研究。我们的一组分子结果(10种)表明，目前恢复的Fredius是由三个主要谱系中的物种组成的。此外，研究结果还揭示了一些物种的形态鉴定与拓扑分子定位不一致，表明存在隐种，必须对其进行形态学重新分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.