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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
9
|
| pubmed:dateCreated |
1999-1-12
|
| pubmed:abstractText |
A genomic scan was conducted on 540 reciprocal backcross Meishan x White composite pigs for hot carcass weight (HCWT); loin eye area (LOIN); carcass length (CRCL); belly weight (BELLY); and weight of trimmed ham, loin, picnic, and Boston butt adjusted to a constant live (TWPLWT) or carcass (TWPCWT) weight. Genetic markers spanned the entire porcine linkage map and were spaced at approximately 20-cM intervals. Grandparental breed of origin for all chromosomal segments was determined using multipoint linkage procedures, and a least squares regression analysis was conducted. Nominal P-values were converted to a genome-wide level of significance to adjust for the number of tests actually conducted. Seven associations were significant at the genome-wide level relating to chromosomes 1 (SSC 1), 7 (SSC 7), and X (SSC X). The SSC 1 region affected LOIN, TWPLWT, and TWPCWT; SSC 7 affected HWCT and CRCL; and SSC X affected TWPLWT and TWPCWT. Twelve associations relating to seven chromosomal regions (including SSC 1 and X) presented suggestive evidence for quantitative trait loci (QTL), and many of these regions are likely to contain QTL. Chromosomes 8 and 14 had two and three traits with suggestive evidence for QTL, respectively. Many pleiotropic effects were detected for regions on SSC 1, 7, 14, and X in this study and a companion study looking for fat deposition QTL in the same population. In addition, SSC 4 was nearly significant for CRCL in the same region identified as affecting backfat in a wild boar x Large White population. These results expand our knowledge of the inheritance of quantitative traits and are directly relevant to composite populations containing Meishan germplasm.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:citationSubset |
IM
|
| pubmed:chemical | |
| pubmed:status |
MEDLINE
|
| pubmed:month |
Sep
|
| pubmed:issn |
0021-8812
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
76
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
2255-62
|
| pubmed:dateRevised |
2003-11-14
|
| pubmed:meshHeading |
pubmed-meshheading:9781480-Alleles,
pubmed-meshheading:9781480-Animals,
pubmed-meshheading:9781480-Body Composition,
pubmed-meshheading:9781480-Breeding,
pubmed-meshheading:9781480-Chromosome Mapping,
pubmed-meshheading:9781480-Female,
pubmed-meshheading:9781480-Genetic Markers,
pubmed-meshheading:9781480-Genome,
pubmed-meshheading:9781480-Genotype,
pubmed-meshheading:9781480-Male,
pubmed-meshheading:9781480-Meat,
pubmed-meshheading:9781480-Muscle, Skeletal,
pubmed-meshheading:9781480-Muscle Development,
pubmed-meshheading:9781480-Phenotype,
pubmed-meshheading:9781480-Quantitative Trait, Heritable,
pubmed-meshheading:9781480-Swine
|
| pubmed:year |
1998
|
| pubmed:articleTitle |
Identification of quantitative trait loci affecting carcass composition in swine: II. Muscling and wholesale product yield traits.
|
| pubmed:affiliation |
U.S. Meat Animal Research Center, USDA, ARS, Clay Center, NE 68933, USA.
|
| pubmed:publicationType |
Journal Article
|