Phylogeny and biogeography of the African burrowing snake subfamily Aparallactinae (Squamata: Lamprophiidae).
Phylogeny and biogeography of the African burrowing snake subfamily Aparallactinae (Squamata: Lamprophiidae).
复制标题
非洲穴居蛇亚科 Aparallactinae（有鳞目：Lamprophiidae）的系统发育和生物地理学。
DOI：
10.1016/j.ympev.2018.03.019
复制
发表时间：
2018
影响因子：
4.1
通讯作者：
Pauwels,Ol
中科院分区：
文献类型：
--
作者：
Portillo,Frank;Branch,WilliamR;Conradie,Werner;Rödel,Mark-Oliver;Penner,Johannes;Barej,MichaelF;Kusamba,Chifundera;Muninga,WandegeM;Aristote,MwenebatuM;Bauer,AaronM;Trape,Jean-François;Nagy,ZoltánT;Carlino,Piero;Pauwels,Ol
蛇亚科的成员在撒哈拉以南非洲的不同栖息地都有分布。斑纹蛇的单系性已得到很好的证实，但亚科内的关系却鲜为人知。我们在撒哈拉以南的非洲地区采集了158个个体的样本，这些个体来自8个并列乳类属中的6个。我们使用串联基因树分析、发散测年方法和祖传区域重建来推断系统发育和生物地理模式，多位点数据集由三个线粒体(16S、Cyt b和ND4)和两个核基因(c-Moss和RAG1)组成。因此，我们发现了几个神秘的血统，并将波兰人的血统提升到完整的物种地位。多样性主要发生在中新世，随后在上新世和更新世发生了一些物种形成事件。生物地理分析表明，赞比西河生物地理区由草原和林地组成，促进了许多半乳齿目动物的辐射、替代和扩散。此外，在干旱和较冷的条件下，许多森林物种的地理分布是支离破碎的，这可能导致多样化事件。盘蛇的生物地理模式与之前对撒哈拉以南地区其他爬行动物的研究一致。
Members of the snake subfamily Aparallactinae occur in various habitats throughout sub-Saharan Africa. The monophyly of aparallactine snakes is well established, but relationships within the subfamily are poorly known. We sampled 158 individuals from six of eight aparallactine genera in sub-Saharan Africa. We employed concatenated gene-tree analyses, divergence dating approaches, and ancestral-area reconstructions to infer phylogenies and biogeographic patterns with a multi-locus data set consisting of three mitochondrial (16S,cyt b,andND4) and two nuclear genes (c-mosandRAG1). As a result, we uncover several cryptic lineages and elevate a lineage ofPolemonto full species status. Diversification occurred predominantly during the Miocene, with a few speciation events occurring subsequently in the Pliocene and Pleistocene. Biogeographic analyses suggested that the Zambezian biogeographic region, comprising grasslands and woodlands, facilitated radiations, vicariance, and dispersal for many aparallactines. Moreover, the geographic distributions of many forest species were fragmented during xeric and cooler conditions, which likely led to diversification events. Biogeographic patterns of aparallactine snakes are consistent with previous studies of other sub-Saharan herpetofauna.