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The genetic basis o...
The genetic basis of dispersal in a vertebrate metapopulation
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- Saatoglu, Dilan (författare)
- Norwegian Univ Sci & Technol, Ctr Biodivers Dynam, Dept Biol, Trondheim, Norway.
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- Lundregan, Sarah L. (författare)
- Norwegian Univ Sci & Technol, Ctr Biodivers Dynam, Dept Biol, Trondheim, Norway.
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- Fetterplace, Evelyn (författare)
- Norwegian Univ Sci & Technol, Ctr Biodivers Dynam, Dept Biol, Trondheim, Norway.
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- Goedert, Debora (författare)
- Norwegian Univ Sci & Technol, Ctr Biodivers Dynam, Dept Biol, Trondheim, Norway.
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- Husby, Arild, Associate Senior Lecturer (författare)
- Uppsala universitet,Evolutionsbiologi,Norwegian Univ Sci & Technol, Ctr Biodivers Dynam, Dept Biol, Trondheim, Norway
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- Niskanen, Alina K. (författare)
- Norwegian Univ Sci & Technol, Ctr Biodivers Dynam, Dept Biol, Trondheim, Norway.;Univ Oulu, Ecol & Genet Res Unit, Oulu, Finland.
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- Muff, Stefanie (författare)
- Norwegian Univ Sci & Technol, Ctr Biodivers Dynam, Dept Math Sci, Trondheim, Norway.
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- Jensen, Henrik (författare)
- Norwegian Univ Sci & Technol, Ctr Biodivers Dynam, Dept Biol, Trondheim, Norway.;Norwegian Univ Sci & Technol, Ctr Biodivers Dynam, Dept Biol, NO-7491 Trondheim, Norway.
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Norwegian Univ Sci & Technol, Ctr Biodivers Dynam, Dept Biol, Trondheim, Norway Evolutionsbiologi (creator_code:org_t)
- John Wiley & Sons, 2024
- 2024
- Engelska.
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Ingår i: Molecular Ecology. - : John Wiley & Sons. - 0962-1083 .- 1365-294X. ; 33:6
- Relaterad länk:
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Abstract
Ämnesord
Stäng
- Dispersal affects evolutionary processes by changing population size and genetic composition, influencing the viability and persistence of populations. Investigating which mechanisms underlie variation in dispersal phenotypes and whether populations harbour adaptive potential for dispersal is crucial to understanding the eco-evolutionary dynamics of this important trait. Here, we investigate the genetic architecture of dispersal among successfully recruited individuals in an insular metapopulation of house sparrows. We use an extensive long-term individual-based ecological data set and high-density single-nucleotide polymorphism (SNP) genotypes for over 2500 individuals. We conducted a genome-wide association study (GWAS), and found a relationship between dispersal probability and a SNP located near genes known to regulate circadian rhythm, glycogenesis and exercise performance, among other functions. However, this SNP only explained 3.8% of variance, suggesting that dispersal is a polygenic trait. We then used an animal model to estimate heritable genetic variation (σA2), which composes 10% of the total variation in dispersal probability. Finally, we investigated differences in σA2 across populations occupying ecologically relevant habitat types (farm vs. non-farm) using a genetic groups animal model. We found different adaptive potentials across habitats, with higher mean breeding value, σA2, and heritability for the habitat presenting lower dispersal rates, suggesting also different roles of environmental variation. Our results suggest a complex genetic architecture of dispersal and demonstrate that adaptive potential may be environment dependent in key eco-evolutionary traits. The eco-evolutionary implications of such environment dependence and consequent spatial variation are likely to become ever more important with the increased fragmentation and loss of suitable habitats for many natural populations.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
Nyckelord
- adaptive potential
- additive genetic variance
- dispersal
- genotype-by-environment interaction
- GWAS
- heritability
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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