Linkage and QTL mapping for Sus scrofa chromosome 2

Journal of Animal Breeding and Genetics - Tập 120 Số s1 - Trang 11-19 - 2003
S. S. Lee1, Yizhou Chen1, C. Moran1, S. Čepica2, Gerald Reiner3, H. Bartenschlager3, G. Moser3, H. Geldermann3
1Centre for Advanced Technologies in Animal Genetics and Reproduction (Reprogen), University of Sydney, Australia
2Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Libechov, Czech Republic
3Department of Animal Breeding and Biotechnology, University of Hohenheim, Stuttgart, Germany

Tóm tắt

Summary Sus scrofa chromosome 2 (SSC2) linkage maps were generated from three F2 families involving Meishan (M), Pietrain (P) and Wild Boar (W) crosses and the same 10 marker loci. SSC2 linkage maps were similar between families and correspond to published maps. Quantitative trait loci (QTLs) for carcass traits, daily gain and heart weight were identified on SSC2, especially in the intervals 0–20 and 80–90 cM in the M × P family, the intervals 20–50 and 125–140 cM in the W × P family, and the interval 15–70 cM in the W × M family. QTL presence and position varied among families. QTL effects explained up to 10% of F2 phenotypic variance. Pietrain QTL alleles were associated with high muscle and heart mass, high daily gain and low fat deposition and Meishan alleles with high carcass fat content. Wild Boar alleles were associated with leaner carcass but lower daily gain than Meishan alleles.

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Thông tin xuất bản

Journal of Animal Breeding and Genetics

Tập 120 Số s1

11-19

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