Genome-wide Linkage Disequilibrium Linkage Analysis (LDLA) of Body Fat Traits in an F2 Porcine Model for Human Obesity

    Abstract

    ABSTRACT: Purebred Duroc and Yorkshire sows were
    crossed with Göttingen minipig boars to obtain two separate
    F2 intercross resource populations (n=287 and 279
    respectively). Several obesity, metabolic and slaughter
    measurements were recorded from birth to slaughter (220 ±
    45 days). In addition, body composition was determined at
    about two months of age (64 ± 11 days) via dual-energy xray
    absorptiometry (DXA) scanning. All pigs were
    genotyped using Illumina Porcine 60k SNP Beadchip and a
    combined LDLA approach was used to perform genomewide
    linkage and association analysis for body fat traits.
    Subsequently bioinformatic analysis was performed to
    identify genes in close proximity of chromosomal positions
    where statistically significant QTLs were identified. Several
    important genes previously linked to obesity (e.g. BBS4,
    CHRNA2, DLK1), along with other novel genes were
    identified, that together provide novel insights that may
    further the current understanding of the molecular
    mechanisms underlying human obesity.
    Original languageEnglish
    Publication date2014
    Number of pages4
    Publication statusPublished - 2014
    Event10th World Congress of Genetics Applied to Livestock Production: WCGALP - Vancouver, Canada
    Duration: 16 Aug 201423 Aug 2014

    Conference

    Conference10th World Congress of Genetics Applied to Livestock Production
    Country/TerritoryCanada
    CityVancouver
    Period16/08/201423/08/2014

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