Integrative taxonomy increases biodiversity knowledge of Gusana (Platyhelminthes, Tricladida, Geoplanidae) with the description of four new Chilean species

IF 1.8 2区生物学 Q3 EVOLUTIONARY BIOLOGY

Invertebrate Systematics Pub Date : 2022-07-18 DOI:10.1071/IS21066

Ana Laura Almeida, M. Álvarez‐Presas, Laura Bolonhezi, F. Carbayo

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引用次数: 0

Abstract

ABSTRACT The Chilean land planarian genus Gusana (Platyhelminthes, Tricladida, Geoplaninae) currently comprises three species that were described in the 19th century. Four new species of the genus are described herein, namely G. hualpensis Carbayo, sp. nov., G. lujanae Almeida & Carbayo, sp. nov., G. melipeucensis Almeida & Carbayo, sp. nov. and G. purensis Bolonhezi, Almeida & Carbayo, sp. nov. An integrative taxonomy approach was adopted by combining morphological (anatomy, histology) and molecular (COI and 28S genes) information. Additionally, the monophyletic status of Gusana is investigated and the species are delimited by a recently introduced molecular delimitation method based on pairwise genetic distances. All Gusana species are very similar in attributes such as body shape, dorsal colour pattern and internal organs, namely the pharynx and copulatory apparatus and only differ in the details. Gusana is retrieved as monophyletic and the molecular delimitation method recovered the same species recognised morphologically. A re-diagnosis of the genus and replacement of G. lata into Pseudogeoplana are also proposed. A new role of the penis papilla is also suggested based on the spermatophore found in Gusana lujanae.

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综合分类学通过描述四个智利新物种，增加了Gusana（Platyhelmintes，Tricladida，Geoplanidae）的生物多样性知识

摘要智利陆地涡虫属Gusana（Platyhelmintes，Tricladida，Geoplaninae）目前由19世纪描述的三个物种组成。本文描述了该属的四个新种，即G.hualpensis Carbayo，sp.nov.，G.lujanae Almeida&Carbayo.，sp.nova.，G.melipeucensis Almeida&Carbayon，sp.nov.和G.purensis Bolonhezi，Almeida&Carbayeo，sp.nov。通过结合形态学（解剖学、组织学）和分子（COI和28S基因）信息，采用综合分类学方法。此外，还调查了Gusana的单系状态，并通过最近引入的基于成对遗传距离的分子划界方法对该物种进行了划界。所有Gusana物种在体型、背部颜色模式和内脏（即咽部和交配器）等属性上都非常相似，只是在细节上有所不同。Gusana被恢复为单系，分子划界方法恢复了形态上公认的相同物种。本文还提出了对该属的重新诊断和将G.lata替换为Pseudogeoplana的建议。基于在羽扇豆中发现的精囊，还提出了阴茎乳头的新作用。

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

Invertebrate Systematics 生物-动物学

CiteScore

4.30

自引率

9.10%

发文量

审稿时长

>12 weeks

期刊介绍： Invertebrate Systematics (formerly known as Invertebrate Taxonomy) is an international journal publishing original and significant contributions on the systematics, phylogeny and biogeography of all invertebrate taxa. Articles in the journal provide comprehensive treatments of clearly defined taxonomic groups, often emphasising their biodiversity patterns and/or biological aspects. The journal also includes contributions on the systematics of selected species that are of particular conservation, economic, medical or veterinary importance. Invertebrate Systematics is a vital resource globally for scientists, students, conservation biologists, environmental consultants and government policy advisors who are interested in terrestrial, freshwater and marine systems. Invertebrate Systematics is published with the endorsement of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and the Australian Academy of Science.