Co-Authors:
Levin, I., Department of Microbiology, Michigan State University, Giltner Hall, East Lansing, MI 48824, United States
Santangelo, L., Department of Microbiology, Michigan State University, Giltner Hall, East Lansing, MI 48824, United States
Cheng, H., The USDA Agricultural Research Service, Avian Disease and Oncology Laboratory, East Lansing, United States
Crittenden, L.B., Department of Microbiology, Michigan State University, Giltner Hall, East Lansing, MI 48824, United States
Dodgson, J.B., Department of Microbiology, Michigan State University, Giltner Hall, East Lansing, MI 48824, United States
Abstract:
We have developed an autosomal genetic linkage map of the chicken genome using a subpanel of 52 DNAs from a previously described reference backcross mapping population. The population derived from a cross of an inbred Red Jungle Fowl male and a highly inbred White Leghorn female. The backcross subpanel used was made up of offspring of a single F1 male with four White Leghorn females. Ninety-eight markers consisting of classical and erythrocyte antigen genes, restriction fragment length polymorphisms, random amplified polymorphic DNA, and chicken CR1 repeat-element polymorphisms were typed. Seventy-two of these markers were resolved into 19 linkage groups. Four of the linkage groups were assigned to chromosomes 1, 4, and 17. Four linkage groups were associated with linkage groups published earlier. Linkages within approximately 27 cM can be detected with a lod score of 3 with the panel used. The preliminary map contains approximately 590 cM within the linkage groups, and approximately 70% of the randomly selected markers fell in one of the groups; however, a considerable portion of the genome may remain outside of the existing linkage groups. These markers greatly expand the existing linkage map of the chicken genome. © 1994 The American Genetic Association.
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