.png){kind=icon}
返回
Palaeoproteomics resolves sloth relationships
.png){kind=icon}
OA
AI
DOI：10.1038/s41559-019-0909-z.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
The living tree sloths Choloepus and Bradypus are the only remaining members of Folivora, a major xenarthran radiation that occupied a wide range of habitats in many parts of the western hemisphere during the Cenozoic, including both continents and the West Indies. Ancient DNA evidence has played only a minor role in folivoran systematics, as most sloths lived in places not conducive to genomic preservation. Here we utilize collagen sequence information, both separately and in combination with published mitochondrial DNA evidence, to assess the relationships of tree sloths and their extinct relatives. Results from phylogenetic analysis of these datasets differ substantially from morphology-based concepts: Choloepus groups with Mylodontidae, not Megalonychidae; Bradypus and Megalonyx pair together as megatherioids, while monophyletic Antillean sloths may be sister to all other folivorans. Divergence estimates are consistent with fossil evidence for mid-Cenozoic presence of sloths in the West Indies and an early Miocene radiation in South America.
Keyword:
EXTINCT GROUND SLOTH
MOLECULAR PHYLOGENY
LATE MIOCENE
ANCIENT PROTEINS
XENARTHRA
EVOLUTION
MAMMALIA
PLEISTOCENE
TARDIGRADA
SEQUENCE
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
14.5
论文数:
2.8K
被引数:
2.2W
机构
查看更多机构
引用论文
The hidden teeth of sloths: evolutionary vestiges and the development of a simplified dentition.png)
SCIENTIFIC REPORTSOAAI
SCIENTIFIC REPORTSIF3.9
OAAI分享收藏PartitionFinder: Combined Selection of Partitioning Schemes and Substitution Models for Phylogenetic AnalysesPartitionFinder: 用于系统发育分析的分区方案和替代模型的组合选择
OAAI
OAAI分享收藏分享收藏Automated Parent-Training for Preschooler Immunization Pain Relief: A Randomized Controlled TrialOAAI
OAAI分享收藏分享收藏 查看更多内容