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Rapid adaptive radiation of Darwin's finches depends on ancestral genetic modules

Rubin, Carl-Johan and Enbody, Erik D. and Dobreva, Mariya P. and Abzhanov, Arhat and Davis, Brian W. and Lamichhaney, Sangeet and Pettersson, Mats and Sendell-Price, Ashley T. and Sprehn, C. Grace and Valle, Carlos A. and Vasco, Karla and Wallerman, Ola and Grant, B. Rosemary and Grant, Peter R. and Andersson, Leif (2022). Rapid adaptive radiation of Darwin's finches depends on ancestral genetic modules. Science Advances. 8 :27 , eabm5982
[Research article]

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Abstract

Recent adaptive radiations are models for investigating mechanisms contributing to the evolution of biodiversity. An unresolved question is the relative importance of new mutations, ancestral variants, and introgressive hybridization for phenotypic evolution and speciation. Here, we address this issue using Darwin's finches and investigate the genomic architecture underlying their phenotypic diversity. Admixture mapping for beak and body size in the small, medium, and large ground finches revealed 28 loci showing strong genetic differentiation. These loci represent ancestral haplotype blocks with origins predating speciation events during the Darwin's finch radiation. Genes expressed in the developing beak are overrepresented in these genomic regions. Ancestral haplotypes constitute genetic modules for selection and act as key determinants of the unusual phenotypic diversity of Darwin's finches. Such ancestral haplotype blocks can be critical for how species adapt to environmental variability and change.

Authors/Creators:Rubin, Carl-Johan and Enbody, Erik D. and Dobreva, Mariya P. and Abzhanov, Arhat and Davis, Brian W. and Lamichhaney, Sangeet and Pettersson, Mats and Sendell-Price, Ashley T. and Sprehn, C. Grace and Valle, Carlos A. and Vasco, Karla and Wallerman, Ola and Grant, B. Rosemary and Grant, Peter R. and Andersson, Leif
Title:Rapid adaptive radiation of Darwin's finches depends on ancestral genetic modules
Series Name/Journal:Science Advances
Year of publishing :2022
Volume:8
Number:27
Article number:eabm5982
Number of Pages:11
Publisher:AMER ASSOC ADVANCEMENT SCIENCE
ISSN:2375-2548
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution-Noncommercial 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Evolutionary Biology
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 404 Agricultural Biotechnology > Genetics and Breeding
URN:NBN:urn:nbn:se:slu:epsilon-p-118466
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-118466
Additional ID:
Type of IDID
DOI10.1126/sciadv.abm5982
Web of Science (WoS)000823446300009
ID Code:28700
Faculty:VH - Faculty of Veterinary Medicine and Animal Science
Department:(VH) > Dept. of Animal Breeding and Genetics
Deposited By: SLUpub Connector
Deposited On:01 Sep 2022 08:16
Metadata Last Modified:01 Sep 2022 08:21

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