Morphological description and molecular characterisation of Opegaster mezcal sp. n. (Trematoda: Opecoelidae) from the Mexican Tropical Pacific.

IF 1.5 4区医学 Q3 PARASITOLOGY

Folia Parasitologica Pub Date : 2025-06-12 DOI:10.14411/fp.2025.018

Rodrigo I Santillan-Perez, Martin Garcia-Varela, Rogelio Aguilar-Aguilar

引用次数: 0

Abstract

Opegaster Ozaki, 1928 is one of the most species-rich genera of the trematode family Opecoelidae, commonly found in marine teleost fishes. This study describes a new species of Opegaster of the intertidal fish species Labrisomus xanti Gill (Labrisomidae) (type host) and Tomicodon zebra (Jordan et Gilbert) (Gobiesocidae) from the coast of Oaxaca, Mexican Pacific. Opegaster mezcal sp. n. is characterised by the absence of papillae on the ventral sucker and the size and shape of the testes. Sequences of the D1-D3 domains from large subunit from nuclear DNA (28S) were generated for the new species and for another opecoelid species, Opecoelus adsphaericus Manter et Van Cleave, 1951. The new sequences of Opegaster mezcal sp. n. formed a clade, which is sister to O. adsphaericus. However, the phylogenetic relationships among genera of Opecoelinae remain unresolved because few species have been analysed; the addition of further taxa is necessary to better understand the evolution of the subfamily.

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来自墨西哥热带太平洋的Opegaster mezcal sp. n.（吸虫目：Opegaster mezcal科）的形态描述和分子特征。

Opegaster Ozaki， 1928是吸虫科（Opecoelidae）中物种最丰富的属之一，常见于海洋硬骨鱼。本研究描述了墨西哥太平洋瓦哈卡海岸潮间带鱼种Labrisomus xanti Gill (Labrisomidae)（类型寄主）和Tomicodon zebra (Jordan et Gilbert) （Gobiesocidae）中的一新种Opegaster。在腹侧吸盘上没有乳突，睾丸的大小和形状也相同。对该新种和另一种Opecoelus adsphaericus Manter et Van Cleave（1951）的核DNA大亚基（28S） D1-D3结构域序列进行了分析。新发现的Opegaster mezcal sp. n.是O. adsphaericus的姊妹枝。然而，由于很少有物种被分析，因此，opecolinae属之间的系统发育关系仍未解决；为了更好地了解该亚科的进化，有必要进一步添加分类群。

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

Folia Parasitologica 医学-寄生虫学

CiteScore

2.70

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： FOLIA PARASITOLOGICA, issued in online versions, is an international journal that covers the whole field of general, systematic, ecological and experimental parasitology. It publishes original research papers, research notes and review articles. Contributions from all branches of animal parasitology, such as morphology, taxonomy, biology, biochemistry, physiology, immunology, molecular biology and evolution of parasites, and host-parasite relationships, are eligible. Novelty and importance in the international (not local or regional) context are required. New geographical records of parasites, records of new hosts, regional parasite and/or host surveys (if they constitute the principal substance of manuscript), local/regional prevalence surveys of diseases, local/regional studies on epidemiology of well known diseases and of parasite impact on human/animal health, case reports, routine clinical studies and testing of established diagnostic or treatment procedures, will not be considered. One species description will also not be considered unless they include more general information, such as new diagnostic characters, host-parasite associations, phylogenetic implications, etc. Manuscripts found suitable on submission will be reviewed by at least two reviewers.