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Abstract
Theory predicts that compensatory genetic changes reduce negative indirect effects of selected variants during adaptive evolution, but evidence is scarce. Here, we test this in a wild population of Hawaiian crickets using temporal genomics and a high-quality chromosome-level cricket genome. In this population, a mutation, flatwing, silences males and rapidly spread due to an acoustically-orienting parasitoid. Our sampling spanned a social transition during which flatwing fixed and the population went silent. We find long-range linkage disequilibrium around the putative flatwing locus was maintained over time, and hitchhiking genes had functions related to negative flatwing-associated effects. We develop a combinatorial enrichment approach using transcriptome data to test for compensatory, intragenomic coevolution. Temporal changes in genomic selection were distributed genome-wide and functionally associated with the population’s transition to silence, particularly behavioural responses to silent environments. Our results demonstrate how ‘adaptation begets adaptation’; changes to the sociogenetic environment accompanying rapid trait evolution can generate selection provoking further, compensatory adaptation.
Original language | English |
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Article number | 5001 |
Journal | Nature Communications |
Volume | 15 |
Issue number | 1 |
DOIs | |
Publication status | Published - 12 Jun 2024 |
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Nathan Bailey: How repeatable is adaptvie evolution? Testing what promotes rapid adaptation in a replicated natural system
Bailey, N. W. (PI)
3/12/19 → 2/12/22
Project: Standard
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