Data from: Genomic variation, population history and within-archipelago adaptation between island bird populations ...
Oceanic island archipelagos provide excellent models to understand evolutionary processes. Colonisation events and gene flow can interact with selection to shape genetic variation at different spatial scales. Landscape-scale variation in biotic and abiotic factors may drive fine-scale selection with...
| Main Authors: | , , , , , |
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| Format: | Dataset |
| Language: | English |
| Published: |
Dryad
2020
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.5061/dryad.pc866t1kt https://datadryad.org/stash/dataset/doi:10.5061/dryad.pc866t1kt |
| Summary: | Oceanic island archipelagos provide excellent models to understand evolutionary processes. Colonisation events and gene flow can interact with selection to shape genetic variation at different spatial scales. Landscape-scale variation in biotic and abiotic factors may drive fine-scale selection within islands, while long-term evolutionary processes may drive divergence between distantly related populations. Here, we examine patterns of population history and selection between recently diverged populations of the Berthelot’s pipit (Anthus berthelotii), a passerine endemic to three North Atlantic archipelagos. First we use demographic trees and f3 statistics to show that genome-wide divergence across the species range is largely shaped by colonisation and bottlenecks, with evidence of very weak gene flow between populations. Then, using a genome scan approach, we identify signatures of divergent selection within-archipelagos at SNPs in genes potentially associated with craniofacial development and DNA repair. ... : Double digest restriction site-associated DNA sequencing (RAD-seq) and morphological data across 13 wild caught populations of the Berthelot's pipit across their range in the North Atlantic. ... |
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