| Title: | Community-wide genome sequencing reveals 30 years of Darwin's finch evolution |
| Journal: | Science |
| Published: | 29 Sep 2023 |
| Pubmed: | https://pubmed.ncbi.nlm.nih.gov/37769091/ |
| DOI: | https://doi.org/10.1126/science.adf6218 |
| URL: | https://www.science.org/doi/pdf/10.1126/science.adf6218?download=true |
Publication 9448
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Abstract
A fundamental goal in evolutionary biology is to understand the genetic architecture of adaptive traits. Using whole-genome data of 3955 of Darwin's finches on the Galápagos Island of Daphne Major, we identified six loci of large effect that explain 45% of the variation in the highly heritable beak size of Geospiza fortis, a key ecological trait. The major locus is a supergene comprising four genes. Abrupt changes in allele frequencies at the loci accompanied a strong change in beak size caused by natural selection during a drought. A gradual change in Geospiza scandens occurred across 30 years as a result of introgressive hybridization with G. fortis. This study shows how a few loci with large effect on a fitness-related trait contribute to the genetic potential for rapid adaptive radiation.</p>
8 Authors
- Erik D Enbody
- Ashley T Sendell-Price
- C Grace Sprehn
- Carl-Johan Rubin
- Peter M Visscher
- B Rosemary Grant
- Peter R Grant
- Leif Andersson
1 Application
| Application ID | Title |
|---|---|
| 12505 | Dissecting the genetic basis of relationships between early-life and later-life events |
Enabling scientific discoveries that improve human health