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Animal Breeding and Genetics
Asian-Australasian Journal of Animal Sciences 2003;16(3): 320-324.
DOI: https://doi.org/10.5713/ajas.2003.320    Published online January 1, 2003.
Mapping Quantitative Trait Loci for Meat Quality on Pig Chromosome 3, 4 and 7
Bo Zuo, YuanZhu Xiong, YuHong Su, ChangYan Deng, Rong Zheng, Siwen Jiang
Abstract
The objective of this study was to localize QTL affecting meat quality in a pig family of three generations. All animals were genotyped for twenty-four microsatellites on SSC3 (Sus scrofa chromosome 3), SSC4 and SSC7. One hundred and forty F2 offsprings were scored for eleven meat quality traits. Least square regression interval mapping revealed quantitative trait loci (QTL) effect for meat pH (m. Semipinalis Capitis, SC) on SSC4 and SSC7; for moisture (m. Longissimus Dorsi, LD) on SSC3. Furthermore, there was suggestive evidence for a QTL on SSC4 affecting intramuscular fat (IMF) content that nearly approached the chromosome-wise (p=0.05) significance threshold.
Keywords: Genome Scan; Quantitative Trait Loci (QTL); Meat Quality; Pigs


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