Johnsson, Martin and Whalen, Andrew and Ros-Freixedes, Roger and Gorjanc, Gregor and Chen, Ching-Yi and Herring, William O. and De Koning, Dirk-Jan and Hickey, John M.
(2021).
Genetic variation in recombination rate in the pig.
Genetics Selection Evolution. 53
, 54
[Research article]
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Abstract
Background Meiotic recombination results in the exchange of genetic material between homologous chromosomes. Recombination rate varies between different parts of the genome, between individuals, and is influenced by genetics. In this paper, we assessed the genetic variation in recombination rate along the genome and between individuals in the pig using multilocus iterative peeling on 150,000 individuals across nine genotyped pedigrees. We used these data to estimate the heritability of recombination and perform a genome-wide association study of recombination in the pig. Results Our results confirmed known features of the recombination landscape of the pig genome, including differences in genetic length of chromosomes and marked sex differences. The recombination landscape was repeatable between lines, but at the same time, there were differences in average autosome-wide recombination rate between lines. The heritability of autosome-wide recombination rate was low but not zero (on average 0.07 for females and 0.05 for males). We found six genomic regions that are associated with recombination rate, among which five harbour known candidate genes involved in recombination: RNF212, SHOC1, SYCP2, MSH4 and HFM1. Conclusions Our results on the variation in recombination rate in the pig genome agree with those reported for other vertebrates, with a low but nonzero heritability, and the identification of a major quantitative trait locus for recombination rate that is homologous to that detected in several other species. This work also highlights the utility of using large-scale livestock data to understand biological processes.
Authors/Creators: | Johnsson, Martin and Whalen, Andrew and Ros-Freixedes, Roger and Gorjanc, Gregor and Chen, Ching-Yi and Herring, William O. and De Koning, Dirk-Jan and Hickey, John M. | ||||||
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Title: | Genetic variation in recombination rate in the pig | ||||||
Series Name/Journal: | Genetics Selection Evolution | ||||||
Year of publishing : | 2021 | ||||||
Volume: | 53 | ||||||
Article number: | 54 | ||||||
Number of Pages: | 19 | ||||||
ISSN: | 0999-193X | ||||||
Language: | English | ||||||
Publication Type: | Research article | ||||||
Article category: | Scientific peer reviewed | ||||||
Version: | Published version | ||||||
Copyright: | Creative Commons: Attribution 4.0 | ||||||
Full Text Status: | Public | ||||||
Subjects: | (A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 404 Agricultural Biotechnology > Genetics and Breeding | ||||||
URN:NBN: | urn:nbn:se:slu:epsilon-p-112805 | ||||||
Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-112805 | ||||||
Additional ID: |
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ID Code: | 24876 | ||||||
Faculty: | VH - Faculty of Veterinary Medicine and Animal Science | ||||||
Department: | (VH) > Dept. of Animal Breeding and Genetics | ||||||
Deposited By: | SLUpub Connector | ||||||
Deposited On: | 12 Aug 2021 07:25 | ||||||
Metadata Last Modified: | 12 Aug 2021 07:31 |
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