Diversification of low dispersal crustaceans through mountain uplift: a case study of Gammarus (Amphipoda: Gammaridae) with descriptions of four novel species
Diversification of low dispersal crustaceans through mountain uplift: a case study of Gammarus (Amphipoda: Gammaridae) with descriptions of four novel species
复制标题
山脉抬升导致低扩散甲壳类动物多样化：以 Gammarus（片足纲：Gammaridae）为例，并描述了四种新物种
DOI：
10.1111/zoj.12119
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发表时间：
2014-04-01
影响因子：
2.8
通讯作者：
Li, Shuqiang
中科院分区：
文献类型：
--
作者：
Hou, Zhonge;Li, Junbo;Li, Shuqiang
传播能力低的谱系受到地理限制。我们使用淡水 Gammarus 来检验这一假设。获得了分布于中国吕梁和太行山沿线 28 个地点的 7 个物种的两个线粒体（细胞色素 C 氧化酶亚基 I 和 16S）和两个核（28S 和胞质热休克蛋白）基因的序列。系统发育分析表明，Gammarus 物种分为两个分支，一个来自吕梁山脉，另一个来自太行山脉。每个分支又进一步分为三到四个物种，表现出与地理差异一致的模式。分歧时间估计表明，两个进化枝之间的分裂与太行山在渐新世/中新世边界的隆升一致。大多数物种形成事件可能是由中新世晚期到上新世早期吕梁山和太行山的大规模隆升驱动的。此外，还描述了四个新物种：Gammarus incoercitus sp。十一月，Gammarus Bengenus sp。十一月，Gammarus monticellus sp。 11 月，和 Gammarus pisinnus sp。十一月将新物种与该地区的相关物种进行比较，并提供这些物种的关键信息。 © 2014 伦敦林奈学会
Lineages with low dispersal ability are geographically restricted. We used freshwater Gammarus to test this hypothesis. Sequences of two mitochondrial (cytochrome c oxidase subunit I and 16S) and two nuclear (28S and cytosolic heat-shock protein) genes were obtained for seven species distributed in 28 localities along the Luliang and Taihang mountains in China. Phylogenetic analyses showed that Gammarus species were grouped into two clades, one from the Luliang range and the other from the Taihang range. Each clade was further divided into three or four species, showing a congruent pattern with geographical vicariance. Divergence time estimation indicated that the split between the two clades coincided with the uplift of the Taihang Mountains at the boundary of Oligocene/Miocene. Most speciation events may have been driven by massive uplifting of the Luliang and Taihang mountains from the late Miocene to early Pliocene. Additionally, four new species are described: Gammarus incoercitus sp. nov., Gammarus benignus sp. nov., Gammarus monticellus sp. nov., and Gammarus pisinnus sp. nov. The new species are compared with related species in this area and a key to these species is provided. © 2014 The Linnean Society of London