Mapping QTLs on chicken chromosome 1 for performance and carcass traits in a broiler x layer cross

Nones, K., Ledur, M. C., Ruy, D. C., Baron, E. E., Melo, C. M. R., Moura, A. S. A. M. T., Zanella, E. L., Burt, D. W. and Coutinho, L. L. (2006) Mapping QTLs on chicken chromosome 1 for performance and carcass traits in a broiler x layer cross. Animal Genetics, 37 2: 95-100. doi:10.1111/j.1365-2052.2005.01387.x

Author Nones, K.
Ledur, M. C.
Ruy, D. C.
Baron, E. E.
Melo, C. M. R.
Moura, A. S. A. M. T.
Zanella, E. L.
Burt, D. W.
Coutinho, L. L.
Title Mapping QTLs on chicken chromosome 1 for performance and carcass traits in a broiler x layer cross
Journal name Animal Genetics   Check publisher's open access policy
ISSN 0268-9146
Publication date 2006-01-01
Year available 2006
Sub-type Article (original research)
DOI 10.1111/j.1365-2052.2005.01387.x
Open Access Status DOI
Volume 37
Issue 2
Start page 95
End page 100
Total pages 6
Place of publication Oxford, U.K.
Publisher Blackwell Scientific
Language eng
Subject 0604 Genetics
Formatted abstract
With the objective of mapping quantitative trait loci (QTLs) for performance and carcass traits, an F2 chicken population was developed by crossing broiler and layer lines. A total of 2063 F2 chicks in 21 full-sib families were reared as broilers and slaughtered at 42 days of age. Seventeen performance and carcass traits were measured. Parental (F0) and F1 individuals were genotyped with 80 microsatellites from chicken chromosome 1 to select informative markers. Thirty-three informative markers were used for selective genotyping of F2 individuals with extreme phenotypes for body weight at 42 days of age (BW42). Based on the regions identified by selective genotyping, seven full-sib families (649 F2 chicks) were genotyped with 26 markers. Quantitative trait loci affecting body weight, feed intake, carcass weight, drums and thighs weight and abdominal fat weight were mapped to regions already identified in other populations. Quantitative trait loci for weights of gizzard, liver, lungs, heart and feet, as well as length of intestine, not previously described in the literature were mapped on chromosome 1. This F2 population can be used to identify novel QTLs and constitutes a new resource for studies of genes related to growth and carcass traits in poultry.
Keyword Abdominal fat
Quantitative trait loci
Selective genotyping
Q-Index Code C1
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
Institute for Molecular Bioscience - Publications
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