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首页> 外文期刊>Zoologica Scripta: An International Journal of Evolutionary Zoology >Speciation pattern of Telestes souffia complex (Teleostei, Cyprinidae) in Europe using morphological and molecular markers*
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Speciation pattern of Telestes souffia complex (Teleostei, Cyprinidae) in Europe using morphological and molecular markers*

机译：使用形态学和分子标记在欧洲Telestes souffia complex（Teleostei，Cyprinidae）的形态模式*

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摘要

It is notorious that many species boundaries are erroneously defined. When molecular markers are used, misleading evidence can notably be due to the characteristics inherent to mitochondrial DNA and quantity of markers used but also because of a limited range distribution sampling. European cyprinids biodiversity inventory is still an ongoing task and surprising phylogeographic patterns and phylogenetic relationships are still recovered on account of methodological evolution. This is particularly obvious for the Telestes souffia complex. This species occurs in a fragmented range and species boundaries is greatly debated. In this study, we provide an updated delimitation of the different evolutionary entities constituting this T. souffia complex and propose a taxonomic revision. Morphological and molecular analyses were carried out on 520 specimens coming from 19 localities representing the complete geographical range of this species complex and six related sister species that could potentially interact with it (outgroup 'sensu lato'). Phylogenetic reconstructions and multivariate analyses demonstrated that the T. souffia complex is constituted of at least three species (T. souffia, Telestes muticellus and Telestes montenigrinus). Data also suggested that T. souffia comprises three subspecies (T. s. souffia, T. s. agassii; T. s. rysela). We also confirm the splitting of the T. souffia sister species Telestes pleurobipunctatus into two distinct species. The Peloponnesian lineage will be referred as Telestes alfiensis and the continental lineage as T. pleurobipunctatus. Morphological and molecular markers displayed some degree of incongruence within T. souffia suggesting that introgressive hybridization has played a role in the evolution of the Telestes genus. However, discordance among data sets could also result from heterogeneous rate of morphological evolution. Finally, we demonstrated that T. muticellus was implicated in two categories of hybridization: an inter-species hybridization (between T. muticellus and T. souffia) and an inter-generic hybridization (between T. muticellus and Squalius lucumonis), a phenomenon rarely observed for a same species.
机译：众所周知，错误定义了许多物种边界。当使用分子标记时，误导性证据可能主要是由于线粒体DNA固有的特性和所用标记的数量，还由于范围分布采样有限。欧洲鲤鱼的生物多样性清单仍然是一项持续的工作，由于方法的演变，令人惊讶的系统地理模式和种系关系仍得到恢复。这对于Telestes souffia复合体尤其明显。该物种出现在零散的范围内，并且物种边界受到了极大的争论。在这项研究中，我们提供了构成此T. souffia复合体的不同进化实体的最新定界，并提出了分类学修订建议。对来自19个地区的520个标本进行了形态学和分子分析，这些标本代表了该物种复合体的完整地理范围以及可能与之相互作用的6个相关姊妹物种（“ sensu lato”群体）。系统发育重建和多变量分析表明，T。souffia复合物至少由三种组成（T. souffia，Telestes muticellus和Telestes montenigrinus）。数据还表明，T。souffia包含三个亚种（T. s。souffia，T。s。agassii; T。s。rysela）。我们还确认了T. souffia姐妹物种Telestes pleurobipunctatus分裂为两个不同的物种。伯罗奔尼撒血统将被称为Telestes alfiensis，大陆血统将被称为T. pleurobipunctatus。形态学和分子标记物在T. souffia中显示出一定程度的不一致，这表明渐渗杂交在Telestes属的进化中发挥了作用。但是，数据集之间的不一致也可能是由于形态演化的异质性所致。最后，我们证明了鼠疫杆菌与两类杂交有关：种间杂交（鼠疫杆菌和苏菲菌之间）和属间杂交（鼠疫菌和Squalius lucumonis之间）。观察到相同的物种。

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