Augustijnen, Hannah; Bätscher, Livio; Cesanek, Martin; Chkhartishvili, Tinatin; Dincă, Vlad; Iankoshvili, Giorgi; Ogawa, Kota; Vila, Roger; Klopfstein, Seraina; de Vos, Jurriaan M; Lucek, Kay (2024). A macroevolutionary role for chromosomal fusion and fission in Erebia butterflies. Science Advances, 10(16) American Association for the Advancement of Science 10.1126/sciadv.adl0989
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The impact of large-scale chromosomal rearrangements, such as fusions and fissions, on speciation is a long-standing conundrum. We assessed whether bursts of change in chromosome numbers resulting from chromosomal fusion or fission are related to increased speciation rates in Erebia, one of the most species-rich and karyotypically variable butterfly groups. We established a genome-based phylogeny and used state-dependent birth-death models to infer trajectories of karyotype evolution. We demonstrated that rates of anagenetic chromosomal changes (i.e., along phylogenetic branches) exceed cladogenetic changes (i.e., at speciation events), but, when cladogenetic changes occur, they are mostly associated with chromosomal fissions rather than fusions. We found that the relative importance of fusion and fission differs among Erebia clades of different ages and that especially in younger, more karyotypically diverse clades, speciation is more frequently associated with cladogenetic chromosomal changes. Overall, our results imply that chromosomal fusions and fissions have contrasting macroevolutionary roles and that large-scale chromosomal rearrangements are associated with bursts of species diversification.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE) 08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE) > Terrestrial Ecology |
UniBE Contributor: |
Klopfstein, Seraina |
Subjects: |
500 Science > 570 Life sciences; biology 500 Science > 590 Animals (Zoology) 500 Science > 580 Plants (Botany) 000 Computer science, knowledge & systems |
ISSN: |
2375-2548 |
Publisher: |
American Association for the Advancement of Science |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
18 Apr 2024 08:29 |
Last Modified: |
18 Apr 2024 14:15 |
Publisher DOI: |
10.1126/sciadv.adl0989 |
PubMed ID: |
38630820 |
BORIS DOI: |
10.48350/196058 |
URI: |
https://boris.unibe.ch/id/eprint/196058 |
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