Study of Genetic Relatedness among Meat Producing Indian Sheep Breeds by RAPD-PCR

Abstract

To estimate the genetic variability and phylogenetic relationship among four breeds (Sonadi, Madgyal, Deccani and Nellore) of sheep adapted in the semi-arid climatic conditions of Rajasthan and part of Deccan plateau RAPD technique was applied. This analysis kept the four breeds in three groups i.e. Deccani and Nellore were kept in same group, Sonadi and Madgyal were kept in entirely different groups but Madgyal has more closenesz to Deccani and Nellore. This RAPD marker study revealed that Madgyal, Deccani and Nellore are closer genetically as compared to Sonadi breed.

Differentiation of three sheep breeds which have a genetic relationship by body sizes

“…Genetic distance between breeds can also be estimated based on the phenotype of the breed. Some methods have been reported used in estimating genetic distance in sheep, both based on genetic characteristics and phenotypes, for example based on microsatellite DNA marker [4,5], RAPD (Random amplified polymorphic DNA) markers [6,7], mitochondrial DNA sequencing [8,9], blood protein types [10,11], body measurements [12], behaviour characteristic [13], voice characteristics [14].…”