Triplophysa stoliczkae is the most widespread species in the genus Triplophysa and may have originated from morphological convergence. To understand the evolutionary history of T. stoliczkae, we employed a multilocus approach to investigate the phylogenetics and the morphological evolution of T. stoliczkae on the Qinghai-Tibetan Plateau. All phylogenetic analyses (two mitochondrial and five nuclear loci), a genealogical sorting index and species tree inferences suggested that T. stoliczkae consists of distinct lineages that were not closest relatives. The time estimation indicated that the divergence events between “T. stoliczkae” and other Triplophysa species occurred from approximately 0.10 to 4.51 Ma. The ancestral state analyses supported the independent evolution of T. stoliczkae morphology in distinct lineages. The morphometric analysis and convergence estimates demonstrated significant phenotypic convergence among “T. stoliczkae” lineages. Triplophysa stoliczkae includes 4 different lineages with similar morphologies. The increasingly harsh environments that have occurred since the Pliocene have driven the occurrences of scrape-feeding fish in the genus Triplophysa. Morphological adaptations associated with scrape-feeding behavior resulted in convergences and the artificial lumping of four different species in the nominal taxon T. stoliczkae. A taxonomic revision for T. stoliczkae is needed.

中文翻译：

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多次会聚事件创造了一个名义上广泛分布的物种：Triplophysa stoliczkae（Steindachner，1866）（Cobitoidea：Nemacheilidae）

雷公藤是雷公藤属中最广泛的物种，可能起源于形态学的趋同。为了了解T. stoliczkae的进化历史，我们采用了一种多位点方法来研究青藏高原上T. stoliczkae的系统发育和形态演变。所有的系统发育分析（两个线粒体和五个核基因座），族谱排序指数和物种树推论都表明，T。stoliczkae由不同的血统组成，这些血统不是最接近的亲戚。时间估计表明“ T. stoliczkae”和其他Triplophysa物种发生在大约0.10至4.51 Ma之间。祖先状态分析支持了T. stoliczkae形态在不同谱系中的独立进化。形态计量学分析和收敛估计表明，“ T”之间存在显着的表型收敛。stoliczkae”血统。Triplophysa stoliczkae包括4个不同的，具有相似形态的谱系。自上新世以来发生的日益严酷的环境促使雷公藤属中出现了以刮鱼为食的鱼类的发生。与刮e进食行为相关的形态学适应导致名义分类单元T. stoliczkae中四个不同物种的趋同和人工集总。需要对T. stoliczkae进行分类修订。自上新世以来发生的日益严酷的环境促使雷公藤属中出现了以刮鱼为食的鱼类的发生。与刮e进食行为相关的形态学适应导致名义分类单元T. stoliczkae中四个不同物种的趋同和人工集总。需要对T. stoliczkae进行分类修订。自上新世以来发生的日益严酷的环境促使雷公藤属中出现了以刮鱼为食的鱼类的发生。与刮e进食行为相关的形态学适应导致名义分类单元T. stoliczkae中四个不同物种的趋同和人工集总。需要对T. stoliczkae进行分类修订。