Quantitative trait loci for carcass traits on pig chromosomes 4, 6, 7, 8 and 13

• Authors: J.H. Zhang , Y.Z. Xiong , B. Zuo , M.G. Lei , S.W. Jiang , F.E. Li , R. Zheng , J.L. Li , Xu Q. De_
• Languages of publication: EN

Abstracts

EN

For 22 carcass traits, we identified 16 QTLs (based on data for pig resource population no. 214, including 180 F2 hybrids of 3 Yorkshire boars and 8 Meishan sows) and mapped them with the use of 39 microsatellite marker loci on chromosomes 4, 6, 7, 8 and 13. Five QTLs were highly significant (P 0.01 at chromosome level): for skin weight (on chromosome 7 at SW1856 and on chromosome 13 at SW1495), skin percentage (on chromosome 7 between SW2155 and SW1856 and on chromosome 13 between SW1495 and SW520), and ratio of leg and butt to carcass (on chromosome 4 at SW1996). The remaining 11 QTLs were significant (P 0.05 at chromosome level): for backfat thickness at shoulder, loin eye width, loin eye height, fat meat weight, lean meat weight, skin weight, bone weight, skin percentage, fat meat percentage, and ratio of lean meat to fat meat. The proportion of phenotypic variance explained by these QTLs ranged from 0.06% (QTL for loin eye width on chromosome 8 between SW1037 and SW1953) to 18.04% (QTL for ratio of lean meat to fat meat on chromosome 7 between SW252 and SW581). Seven of the QTLs reported here are novel.

Keywords

EN

CARCASS QUALITY; PIG; TRAIT LOCI; YORKSHIRE

Discipline

• GENETICS: GENETICS

• Publisher: Institute of Plant Genetics, Polish Academy of Sciences
• Journal: Journal of Applied Genetics
• Year: 2007
• Volume: 48
• Issue: 4
• Pages: 363-369

Contributors

author

J.H. Zhang

author

Y.Z. Xiong

author

B. Zuo

author

M.G. Lei

author

S.W. Jiang

author

F.E. Li

author

R. Zheng

author

J.L. Li

author

Xu Q. De_

• Document Type: ARTICLE
• Publication order reference: Y. Xiong , Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, 430070, China