The use of multilocus probes as genetic markers for linkage analysis is limited in non-prolific animals, such as dairy cattle, due to the relatively high levels of band sharing between unrelated individuals. We propose to overcome this difficulty by fingerprinting DNA mixes of groups representing the distribution of a quantitative trait. This approach was tested on a segregating population of broilers, regarding abdominal fat deposition. Two DNA fingerprint bands associated with abdominal fat deposition were identified. Correlation between frequency of band P6.1 and fat percentage is highly significant (r--0.93) and its effects on fat percentage and fat weight are -0.24% and -4.44gr, respectively.
Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume XIII. Plenary lectures, molecular genetics and mapping, selection, prediction and estimation., , 133–136, 1990
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