ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2007, Vol. 38 ›› Issue (10): 1009-1014.doi:

• 遗传繁育 •     Next Articles

Mapping Quantitative Trait Loci Associated with Meat Quality Traits in a Pig Population on SSC 4, 8 and 13

ZHANG Jing-hu;XIONG Yuan-zhu;ZUO Bo;LEI Ming-gang;JIANG Si-wen;LI Feng-e; ZHENG Rong;LI Jia-lian;QIAN Hui-yue   

  1. 1 Key Laboratory of Swine Genetics and Breeding, Ministry of Agriculture, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070,China;2 Department of Biology Science & Technology, Zhangzhou Normal College, Zhangzhou 363000,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-10-25 Published:2007-10-25

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Abstract: In this research, we have mapped 6 QTL for 11 meat quality traits, including intramuscular fat of m. Longissimus dorsi (IMF), water moisture in m Longissimus dorsi (WM), water holding capacity of m. Longissimus dorsi (WHC), drip loss rate of m. Longissimus dorsi (DLR), meat pH of m. Longissimus dorsi, (pH1), meat pH of m. Biceps femoris (pH2), meat pH of m. Semispinalis capitis (pH3), meat color value of m. Longissimus dorsi (MCV1), meat color value of m. Biceps femoris (MCV2), meat marbling score of m. Longissimus dorsi (MMS1) and meat marbling score of m. Biceps femoris (MMS2), in a 214 pigs resource population including 180 F2 individuals, using 23 microsatellite marker loci on SSC (Sus scrofa chromosome) 4,8 and 13. The results indicated that two highly significant QTL (P≤0.01) for IMF (at 55 cM on SSC13) and WM (at 10 cM on SSC4) were detected, and 4 significant QTL (P≤0.05) for MCV2 (at 110 cM on SSC8 and at 70 cM on SSC13), MMS1 (at 185 cM on SSC8) and MMS2 (at 185 cM on SSC8) were mapped. The phenotypic variances for which these QTL have accounted were range from 0.16% (QTL for MCV2) to 17.84% (QTL for MMS2).