Pyron R Alexander, Pirro Stacy, Hains Taylor, Colston Timothy J, Myers Edward A, O'Connell Kyle A, Beamer David A
Department of Biological Sciences, George Washington University.
Department of Vertebrate Zoology, Smithsonian Institution, National Museum of Natural History.
Biodivers Genomes. 2024;2024. doi: 10.56179/001c.116891. Epub 2024 Apr 23.
We present partial genome sequences of 50 salamander species (Urodela) from 10 genera and 4 families. These span nearly the entire range of genome sizes in salamanders, from ~14-130GB, the latter of which is among the largest of all animal genomes. Only three salamander genomes were available to this point, from Ambystomatidae (one species) and Salamandridae (two species from two genera), to which we have added Amphiumidae (one species), Plethodontidae (45 species from 6 genera), Proteidae (one species), and Sirenidae (three species from two genera). These span ~140 million years of evolutionary divergence, leaving only Cryptobranchidae, Hynobiidae, and Rhyacotritonidae as salamander families without genome assemblies. These data should facilitate additional future work on speciation and genome evolution, both within Urodela and across Animalia.
我们展示了来自10个属、4个科的50种蝾螈（有尾目）的部分基因组序列。这些序列涵盖了蝾螈基因组大小几乎整个范围，从约14GB到130GB，后者是所有动物基因组中最大的之一。到目前为止，仅有来自钝口螈科（1个物种）和蝾螈科（来自两个属的2个物种）的3个蝾螈基因组可供使用，我们在此基础上增加了两栖鲵科（1个物种）、无肺螈科（来自6个属的45个物种）、洞螈科（1个物种）和鳗螈科（来自两个属的3个物种）。这些序列跨越了约1.4亿年的进化分歧，仅隐鳃鲵科、小鲵科和肥螈科这几个蝾螈科没有基因组组装数据。这些数据应有助于未来在有尾目内部以及整个动物界开展更多关于物种形成和基因组进化的研究工作。
