Abstract
Selection based on phenotype in the traditional manner does not help in tracking the selected gene. Molecular genetics has revolutionized the old established breeding techniques. A new epoch of molecular markers has been acquainted for genetic improvement of livestock. This study is engaged on the neoteric molecular markers used in various fields of livestock. DNA markers are more encouraging in selecting genomes that have recombination events close to the target gene. Molecular markers rely on DNA assay and are better than the morphological and biochemical markers. In this study DNA-based molecular markers developed during the past decagons for animal genome analysis are reviewed. Mapping of molecular markers provide a framework, required for its subsequent use in the selection procedure. Molecular techniques help in the utilization of genetic variability in breeding population. At the same time livestock genomes play important role in human genomics and their role for understanding human genomics cannot be overlooked. Recently, in the epigenetic and transcriptomic studies, RNA sequencing as a part of next generation sequencing has revolutionized the approach and ongoing trends of analysis. Keeping in mind the goals, these molecular techniques can be implemented successfully by following well defined, crisp and integrated strategy.
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