Mapping quantitative trait loci in dairy cattle with the aid of genetic markers

What is it about?

The important issues in mapping QTL are outlined, including description of the types of markers currently in use for QTL detection, methods and experimental designs to detect QTL and to estimate QTL effects and location suitable for dairy cattle, the statistical power of the various experimental designs, description of methodologies used to derive genetic evaluations based on genetic markers and pedigree, the current state of QTL detection and MAS in dairy cattle, and methods to identify the actual polymorphisms responsible for observed QTL and description of the reported results.

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Why is it important?

Numerous studies have proposed that accuracy of the evaluations of young sires can be increased by identification of the individual quantitative trait loci via linkage to genetic markers, and various strategies were proposed for application of marker-assisted selection.

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