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Mapping of Quantitative Trait Loci on Porcine Chromosome 7 Using Combined Data Analysis
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 Title & Authors
Mapping of Quantitative Trait Loci on Porcine Chromosome 7 Using Combined Data Analysis
Zuo, B.; Xiong, Y.Z.; Su, Y.H.; Deng, C.Y.; Lei, M.G.; Zheng, R.; Jiang, S.W.; Li, F.E.;
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 Abstract
To further investigate the regions on porcine chromosome 7 that are responsible for economically important traits, phenotypic data from a total of 287 F2 individuals were collected and analyzed from 1998 to 2000. All animals were genotyped for eight microsatellite loci spanning the length of chromosome 7. QTL analysis was performed using interval mapping under the line-cross model. A permutation test was used to establish significance levels associated with QTL effects. Observed QTL effects were (chromosomewide significance, position of maximum significance in centimorgans): Birth weight (<0.01, 3); Carcass length (<0.05, 80); Longissimus muscle area (<0.01, 69); Skin percentage (<0.01, 69); Bone percentage (<0.01, 74); Fat depths at shoulder (<0.05, 54);Mean fat depth (<0.05, 81); Moisture in m. Longissimus Dorsi (<0.05, 88). Additional evidence was also found which suggested QTL for dressing percentage and fat depths at buttock. This study offers confirmation of several QTL affecting growth and carcass traits on SSC7 and provides an important step in the search for the actual major genes involved in the traits of economic interest.
 Keywords
Pig;Quantitative Trait Loci(QTL);Sus scrofa Chromosome 7(SSC7);Combined Data Analysis;
 Language
English
 Cited by
1.
Molecular Cloning and Characterization of Bovine HMGA1 Gene,;;;;;;;;

Asian-Australasian Journal of Animal Sciences, 2007. vol.20. 11, pp.1662-1669 crossref(new window)
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