Premium
Mapping of quantitative trait loci on porcine chromosome 4
Author(s) -
Walling G. A.,
Archibald A. L.,
Cattermole J. A.,
Downing A. C.,
Finlayson H. A.,
Nicholson D.,
Walker C. A.,
Haley C. S.,
Visscher P. M.
Publication year - 1998
Publication title -
animal genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.756
H-Index - 81
eISSN - 1365-2052
pISSN - 0268-9146
DOI - 10.1046/j.1365-2052.1998.296360.x
Subject(s) - biology , quantitative trait locus , genetics , white (mutation) , breed , allele , population , boar , chromosome , trait , sire , zoology , gene , demography , sociology , computer science , sperm , programming language
A F 2 population derived from a cross between European Large White and Chinese Meishan pigs was established in order to study the genetic basis of breed differences for growth and fat traits. Chromosome 4 was chosen for initial study as previous work had revealed quantitative trait loci (QTLs) on this chromosome affected growth and fat traits in a Wild Boar × Large White cross. Individuals in the F 2 population were typed for nine markers spanning a region of approximately 124 c m . We found evidence for QTLs affecting growth between weaning and the end of test (additive effect: 43·4 g/day) and fat depth measured in the mid‐back position (additive effect: 1·82 mm). There was no evidence of interactions between the QTLs and sex, grandparents or F 1 sires, suggesting that the detected QTLs were fixed for alternative alleles in the Meishan and Large White breeds. Comparison of locations suggests that these QTLs could be the same as those found in the Wild Boar × Large White cross.