OUP accepted manuscript
OUP accepted manuscript
复制标题
DOI：
10.1093/zoolinnean/zlac030
复制
发表时间：
2022
影响因子：
2.8
通讯作者：
中科院分区：
文献类型：
--
作者：
“左鞭角类”包括三种：盾鞭角类（P. aspilos）、细角鞭角类（P. leptokeras）和盾鞭角鞭角类（P. lettokeras）。tupinamba，属于Phalloceros，南美洲特有的淡水鱼属。它们栖息在南帕拉伊巴盆地和巴西东南部的沿海流域。这一组的诊断是在男性的生殖足附件的内侧部分和女性的尿生殖乳头的左侧方向的大钩。我们进行了线粒体（COI和Cytb）和核（RAG 1）单倍型的单倍型从11个地点采样的36个个体的地理学分析，以测试的假设，即介导的连接的沿海盆地在第四纪海平面下降造成的sinistralPhalloceros的地理历史。我们通过整合分子物种界定方法和形态学数据，对这些命名分类群的分类地位进行了评价。我们的研究结果表明，这三个命名分类群是同义的，和P。指定为有效种名的细角化病。P的地理扩张。leptokeraslineage开始于沿海地区（~2.3 Mya）。种群之间的地理关系部分证实了古水系模型，但也表明，P. leptokeras殖民内陆Paraíba do Sul流域，克服了Serra do Mar山脉。
The ‘sinistralPhallocerosgroup’ consists of three species,P. aspilos,P. leptokerasandP. tupinamba, that belong toPhalloceros, a genus of freshwater fish endemic to South America. They inhabit the Paraíba do Sul Basin and coastal drainages in south-eastern Brazil. This group is diagnosed by large hooks in the medial portion of the gonopodial appendices in males and the sinistral direction of the urogenital papilla in females. We conducted a phylogeographic analysis of mitochondrial (COIandCytb) and nuclear (RAG1) haplotypes of 36 individuals sampled from 11 localities to test the hypothesis that the biogeographic history of sinistralPhalloceroswas mediated by connections of coastal basins caused by lowered sea-levels during the Quaternary. We evaluated the taxonomic status of these nominal taxa by integrating molecular species delimitation methods and morphological data. Our results suggest that the three nominal taxa are synonyms, andP. leptokerasis designated as the valid species name. The geographic expansion of theP. leptokeraslineage began in the coastal region (~2.3 Mya). The phylogeographic relationships among populations partially corroborate the palaeodrainage model, but also suggest thatP.leptokerascolonized the inland Paraíba do Sul drainage, overcoming the Serra do Mar mountains.