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ARS Home » Research » Publications at this Location » Publication #111517
Title: IDENTIFICATION OF QTL FOR PRODUCTION TRAITS IN POULTRY

Author
item Hansen, Christiane
item Cheng, Hans
item GAVORA, JAN - AGRI-FOOD RESEARCH CANADA
item XU, SHIZHONG - UC DAVIS RIVERSIDE CA

Submitted to: International Conference on Animal Genetics
Publication Type: Abstract Only
Publication Acceptance Date: 7/22/2000
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Poultry meat and eggs continue to be very important agricultural commodities not only in the United States, but worldwide. In order for the poultry industry to continue to flourish, advances in poultry genetics are essential and the identification of QTL, especially for production traits, has to be pursued. In order to achieve this, a meat-type x egg-type resource population was developed using two partially inbred poultry lines (Agriculture Canada Strains 21 and WG) and a large number of economically important traits (growth, reproduction, and mortality) were measured in this population. Using 64 evenly spaced microsatellite markers providing approximately 50% genome coverage at 30 cM marker spacing, 3 sires, 19 dams, 73 F1 individuals and a selected subset of the 586 F2 progeny were genotyped. Initial marker association analysis showed that suggestive markers (P<0.05) could be identified on 19 chromosomes or linkage groups with an average of ~10 per trait. In the future, the areas containing these putative QTL will be saturated with additional markers and the remaining F2 progeny will be genotyped and analyzed. Finally, all identified QTL will be assessed as to their existence and segregation in two within-type resource populations. It is hoped that this work will lay the groundwork for the use of linked markers, along with those already identified for disease resistance, in marker assisted selection in poultry.