Foley, Nicole M; Mason, Victor C; Harris, Andrew J; Bredemeyer, Kevin R; Damas, Joana; Lewin, Harris A; Eizirik, Eduardo; Gatesy, John; Karlsson, Elinor K; Lindblad-Toh, Kerstin; Springer, Mark S; Murphy, William J; Andrews, Gregory; Armstrong, Joel C; Bianchi, Matteo; Birren, Bruce W; Bredemeyer, Kevin R; Breit, Ana M; Christmas, Matthew J; Clawson, Hiram; ... (2023). A genomic timescale for placental mammal evolution. Science, 380(6643), eabl8189. American Association for the Advancement of Science 10.1126/science.abl8189
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The precise pattern and timing of speciation events that gave rise to all living placental mammals remain controversial. We provide a comprehensive phylogenetic analysis of genetic variation across an alignment of 241 placental mammal genome assemblies, addressing prior concerns regarding limited genomic sampling across species. We compared neutral genome-wide phylogenomic signals using concatenation and coalescent-based approaches, interrogated phylogenetic variation across chromosomes, and analyzed extensive catalogs of structural variants. Interordinal relationships exhibit relatively low rates of phylogenomic conflict across diverse datasets and analytical methods. Conversely, X-chromosome versus autosome conflicts characterize multiple independent clades that radiated during the Cenozoic. Genomic time trees reveal an accumulation of cladogenic events before and immediately after the Cretaceous-Paleogene (K-Pg) boundary, implying important roles for Cretaceous continental vicariance and the K-Pg extinction in the placental radiation.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Department of Biology > Institute of Cell Biology |
UniBE Contributor: |
Mason, Victor Christian |
Subjects: |
500 Science > 570 Life sciences; biology |
ISSN: |
1095-9203 |
Publisher: |
American Association for the Advancement of Science |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
28 Apr 2023 09:40 |
Last Modified: |
30 Apr 2023 02:22 |
Publisher DOI: |
10.1126/science.abl8189 |
PubMed ID: |
37104581 |
BORIS DOI: |
10.48350/182040 |
URI: |
https://boris.unibe.ch/id/eprint/182040 |
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