Conquest of the deep, old and cold: an exceptional limpet radiation in Lake Baikal
Conquest of the deep, old and cold: an exceptional limpet radiation in Lake Baikal
复制标题
征服深海、古老和寒冷：贝加尔湖独特的帽贝辐射
作者：
Björn Stelbrink;A. Shirokaya;C. Clewing;T. Sitnikova;L. Prozorova;C. Albrecht
贝加尔湖是世界上最深、最古老、最特殊的古湖。该湖具有高度的软体动物物种丰富度和地方性，其中包括帽科软体动物Acroloxidae，有25种特有物种。这一类的成员一般生活在沿海地区，但最近在深海地区的热液喷口和石油渗漏处发现了这些成员。在这里，我们使用线粒体和核数据来提供贝加尔湖帽状辐射的第一个分子系统学，并到目前为止，湖内多样化的开始。分歧时间估计表明，与湖泊年龄估计相比，物种群体的年龄要年轻得多，而且广泛多样化的开始可能与裂谷过程中快速加深和冷却有关。系统发育关系和分歧时间估计没有清楚地表明深海到底是何时被殖民的，但表明了与北部盆地(中更新世至晚更新世)深海形成一致的时间框架。
Lake Baikal is the deepest, oldest and most speciose ancient lake in the world. The lake is characterized by high levels of molluscan species richness and endemicity, including the limpet family Acroloxidae with 25 endemic species. Members of this group generally inhabit the littoral zone, but have been recently found in the abyssal zone at hydrothermal vents and oil-seeps. Here, we use mitochondrial and nuclear data to provide a first molecular phylogeny of the Lake Baikal limpet radiation, and to date the beginning of intra-lacustrine diversification. Divergence time estimates suggest a considerably younger age for the species flock compared with lake age estimates, and the beginning of extensive diversification is possibly related to rapid deepening and cooling during rifting. Phylogenetic relationships and divergence time estimates do not clearly indicate when exactly the abyssal was colonized but suggest a timeframe coincident with the formation of the abyssal in the northern basin (Middle to Late Pleistocene).
影响因子：
2.6
作者：
Albrecht, Christian;Foeller, Kirstin;Wilke, Thomas
通讯作者：
Wilke, Thomas