QTL for percentage of carcass and carcass parts in a broiler x layer cross

Baron, E. E., Moura, A. S. A. M. T., Ledur, M. C., Pinto, L. F. B., Boschiero, C., Ruy, D. C., Nones, K., Zanella, E. L., Rosário, M. F., Burt, D. W. and Coutinho, L. L. (2011) QTL for percentage of carcass and carcass parts in a broiler x layer cross. Animal Genetics, 42 2: 117-124. doi:10.1111/j.1365-2052.2010.02105.x

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Author Baron, E. E.
Moura, A. S. A. M. T.
Ledur, M. C.
Pinto, L. F. B.
Boschiero, C.
Ruy, D. C.
Nones, K.
Zanella, E. L.
Rosário, M. F.
Burt, D. W.
Coutinho, L. L.
Title QTL for percentage of carcass and carcass parts in a broiler x layer cross
Journal name Animal Genetics   Check publisher's open access policy
ISSN 0268-9146
1365-2052
Publication date 2011-04
Year available 2010
Sub-type Article (original research)
DOI 10.1111/j.1365-2052.2010.02105.x
Volume 42
Issue 2
Start page 117
End page 124
Total pages 8
Place of publication Oxford, United Kingdom
Publisher Wiley-Blackwell Publishing
Collection year 2011
Language eng
Formatted abstract
An F2 experimental population, developed from a broiler layer cross, was used in a genome scan of QTL for percentage of carcass, carcass parts, shank and head. Up to 649 F2 chickens from four paternal half-sib families were genotyped with 128 genetic markers covering 22 linkage groups. Total map length was 2630 cM, covering approximately 63% of the genome. QTL interval mapping using regression methods was applied to line-cross and half-sib models. Under the line-cross model, 12 genome-wide significant QTL and 17 suggestive linkages for percentages of carcass parts, shank and head were mapped to 13 linkage groups (GGA1, 2, 3, 4, 5, 7, 8, 9, 11, 12, 14, 18 and 27). Under the paternal half-sib model, six genome-wide significant QTL and 18 suggestive linkages for percentages of carcass parts, shank and head were detected on nine chicken linkage groups (GGA1, 2, 3, 4, 5, 12, 14, 15 and 27), seven of which seemed to corroborate positions revealed by the previous model. Overall, three novel QTL of importance to the broiler industry were mapped (one significant for shank% on GGA3 and two suggestive for carcass and breast percentages on GGA14 and drums and thighs percentage on GGA15). One novel QTL for wings% was mapped to GGA3, six novel QTL (GGA1, 3, 7, 8, 9 and 27) and suggestive linkages (GGA2, 4, and 5) were mapped for head%, and suggestive linkages were identified for back% on GGA2, 11 and 12. In addition, many of the QTL mapped in this study confirmed QTL previously reported in other populations.
© 2010 The Authors, Animal Genetics © 2010 Stichting International Foundation for Animal Genetics.
Keyword Breast
Carcass
Chickens
Drums and thighs
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status Non-UQ
Additional Notes Article first published online: 30 SEP 2010.

Document type: Journal Article
Sub-type: Article (original research)
Collections: Non HERDC
Institute for Molecular Bioscience - Publications
 
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Created: Wed, 04 May 2011, 18:01:29 EST by Dr Katia Nones on behalf of Institute for Molecular Bioscience