The ancient volcanos as center of diversification: a case study of freshwater amphipods in Northeast Asia
The ancient volcanos as center of diversification: a case study of freshwater amphipods in Northeast Asia
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作为多样化中心的古代火山：东北亚淡水片脚类动物的案例研究
DOI：
10.1111/mec.16223
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发表时间：
2022
影响因子：
4.9
通讯作者：
Zhonge Hou
中科院分区：
文献类型：
--
作者：
Yueyao Hu;Shuqiang Li;Hongguang Liu;S.T. Kim;D. K. Kurenshchikov;Zhonge Hou
火山构造过程被视为当今多样性形成的主要驱动力。与山脉隆起相关的火山通过替代性驱动异域物种形成，并可能影响周围地区，如物种泵或物种吸引器。然而，这些假设在水生动物群中的应用很少经过明确的测试。我们在长白山 (Mts) 测试了这些假设，长白山是东北亚 (NE) 亚最典型的活火山山脉之一，具有悠久而动荡的地质历史。片足类甲壳动物物种复合体广泛分布于东北亚地区，其扩散能力差，进化历史悠久，是检验物种泵或物种吸引子假设的合适模型。系统发育和祖先范围重建表明，所研究的端足类动物起源于长白山〜27 Ma，并分化为东部（Clade I）和西部（Clade II）分支，这与晚渐新世长白山的首次火山喷发很好地对应。随后的CI-3、CII-1a和CII-2a分支的多样化可能是由中新世长白山第二次和第三次喷发驱动的。特别是，长白族谱系自早中新世以来多次传播到俄罗斯远东地区，并在更新世期间广泛殖民该地区。我们的发现表明，长白山的古代火山充当了东北亚的物种泵，导致长白山周围的物种多样化爆发，并随后扩散到邻近地区。
Volcano‐tectonic processes have been viewed as primary drivers in the formation of present‐day diversity. Volcanos associated with mountain uplifts drive allopatric speciation through vicariance and may impact the surrounding areas like species pump or species attractor. However, the application of these hypotheses to aquatic fauna has rarely been tested explicitly. We tested these hypotheses in the Changbai Mountains (Mts), which are one of the most typical, active volcanic ranges in Northeast (NE) Asia with a long and turbulent geological history. TheGammarus nekkensisspecies complex of amphipod crustaceans, widely distributed throughout NE Asia with poor dispersal abilities and a long evolutionary history, is a suitable model for testing hypotheses of species pump or species attractor. Phylogenetic and ancestral range reconstructions demonstrated that the studied amphipod originated from the Changbai Mts ~27 Ma and diverged into eastern (Clade I) and western (Clade II) clades, which corresponds well with the initial volcanic eruption of the Changbai Mts in the Late Oligocene. The subsequent diversifications of subclades CI‐3, CII‐1a and CII‐2a were probably driven by second and third eruptions of the Changbai Mts during the Miocene. In particular, the Changbai lineages had spread to the Russian Far East multiple times since the Early Miocene, and widely colonized the region during the Pleistocene. Our discoveries suggest that the ancient volcanos of the Changbai Mts act as species pumps in NE Asia, resulted in burst of diversification around the Changbai Mts and subsequent dispersals into adjacent regions.