ArticleTheoretical population biology2011
Effects of polymorphism for locally adapted genes on rates of neutral introgression in structured populations.
Article in Theoretical population biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- The consequences of gene flow for local adaptation and differentiation: a two-locus two-deme model.Journal of mathematical biology · 2014Article
- Sex-specific incompatibility generates locus-specific rates of introgression between species.Genetics · 2011Article
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Authors and funding
2 authors.
Funding
Abstract
Adaptation to local conditions within demes balanced by migration can maintain polymorphisms for variants that reduce fitness in certain ecological contexts. Here, we address the effects of such polymorphisms on the rate of introgression of neutral marker genes, possibly genetically linked to targets of selection. Barriers to neutral gene flow are expected to increase with linkage to targets of local selection and with differences between demes in the frequencies of locally adapted alleles. This expectation is borne out under purifying and disruptive selection, regimes that promote monomorphism within demes. In contrast, overdominance within demes induces minimal barriers to neutral introgression even in the face of very large differences between demes in the frequencies of locally adapted alleles. Further, segregation distortion, a phenomenon observed in a number of interspecific hybrids, can in fact promote transmission by migrants to future generations at rates exceeding those of residents.
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