NDLI: Data from: High-resolution mapping reveals hundreds of genetic incompatibilities in hybridizing fish species (Dataset)

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Data from: High-resolution mapping reveals hundreds of genetic incompatibilities in hybridizing fish species (Dataset)

Content Provider	Dryad
Author	Schumer, Molly Cui, Rongfeng Powell, Daniel Dresner, Rebecca Rosenthal, Gil G. Andolfatto, Peter Powell, Daniel L
Abstract	Hybridization is increasingly being recognized as a common process in both animal and plant species. Negative epistatic interactions between genes with different parental ancestry decrease the fitness of hybrids and can limit gene flow between species. However, little is known about the number and genome-wide distribution of genetic incompatibilities separating species. To detect interacting genes, we perform a detailed genome scan for linkage disequilibrium between unlinked genomic regions in naturally occurring hybrid populations of swordtail fish. We estimate that hundreds of pairs of genomic regions contribute to reproductive isolation between these species, despite them being recently diverged. Many of these incompatibilities are likely the result of natural or sexual selection on hybrids, since intrinsic isolation is known to be weak. Patterns of genomic divergence at these regions imply that genetic incompatibilities play a significant role in limiting gene flow even in young species.
File Size	71005
File Format	HTM / HTML
ISSN	2050084X
DOI	10.5061/dryad.q6qn0
Alternate Webpage(s)	https://datadryad.org/stash/downloads/file_stream/52378
Alternate Webpage(s)	https://datadryad.org/stash/downloads/file_stream/52376
Alternate Webpage(s)	https://datadryad.org/stash/downloads/file_stream/52377
Language	English
Publisher Date	2015-06-05
Access Restriction	Open
Subject Keyword	Xiphophorus Malinche Xiphophorus Birchmanni Bateson-dobzhansky-muller Incompatibilities Present
Content Type	Text
Resource Type	Data Set
Subject	Neuroscience Immunology and Microbiology Medicine Biochemistry, Genetics and Molecular Biology

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