Dancing on the top: phylogeography and genetic diversity of high-altitude freshwater fairy shrimps (Branchiopoda, Anostraca) with a focus on the Tibetan Plateau
Dancing on the top: phylogeography and genetic diversity of high-altitude freshwater fairy shrimps (Branchiopoda, Anostraca) with a focus on the Tibetan Plateau
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DOI：
10.1007/s10750-021-04584-z
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发表时间：
2021-04-19
期刊：
影响因子：
2.6
通讯作者：
Yin, Mingbo
中科院分区：
文献类型：
--
作者：
Deng, Zhixiong;Chen, Yating;Yin, Mingbo
仙女虾是大型鳃足类甲壳动物中最具分歧的类群，分布于世界各地。然而，在“世界屋脊”的仙虾的多样性和分布仍然知之甚少。在这里，基于形态学，我们确定了3种神仙虾（东方鳃金龟，Chirocephalus graziophalus和Branchipodopsis affinis），从14个仙女虾种群，中国青藏高原，。基于线粒体DNA序列（细胞色素c氧化酶亚基I基因）和两个核标记（18S核糖体RNA基因和内转录间隔区2）验证了它们的系统发育关系。对不同种类的仙女虾进行了形态学观察。部分单倍型在居群间具有共享性，序列来自B. affinis在单倍型网络中表现出星状模式，表明最近的快速扩张。最后，在青藏高原发现了较高的遗传多样性。所得结果有助于更好地了解高海拔仙女虾的多样性。
Fairy shrimp are the most divergent taxon of large branchiopod crustaceans and have a worldwide distribution. Yet the diversity and distribution of fairy shrimps in the "Roof of the World" remain poorly known. Here, based on morphology, we identified three species of fairy shrimp (Branchinecta orientalis, Chirocephalus graziellae and Branchipodopsis affinis), among 14 fairy-shrimp populations from the Tibetan Plateau, China. Their phylogenetic relationships were verified based on mitochondrial DNA sequences (cytochrome c oxidase subunit I gene) and two nuclear markers (18S ribosomal RNA gene and internal transcribed spacer 2). Syntopy of different species of fairy shrimp was observed. Some haplotypes were shared among populations, and sequences from B. affinis exhibited a star-like pattern in haplotype networks, suggesting a recent rapid expansion. Finally, a high genetic diversity of fairy shrimp was detected on the Tibetan Plateau. Obtained results contribute to a better knowledge of the diversity of high-altitude fairy shrimps.