RT Journal T1 GENETIC DIFFERENTIATION AMONG RED COLORED BOS INDICUS SUBCONTINENT ORIGIN BREEDS USING SNP CHIP DATA A1 Muhammad Moaeen-ud-Din A1 Nasir Abbas A1 Muhammad Sajjad Khan A1 Arfan Yousaf A1 Saba Mehreen JF Journal of Animal and Plant Sciences JO JAPS SN 1018-7081 VO 34 IS 3 SP 809 OP 816 YR 2024 FD 2024/05/31 DO DOI https://doi.org/10.36899/JAPS.2024.3.0767 AB

In Pakistan, Sahiwal and Cholistani cattle are considered as dairy breeds with traits of disease resistance, heat tolerance, and adaptability to high temperature. These breeds are considered two different breeds although Sahiwal is considered an off shoot of Cholistani cattle. However, these breeds have never been characterized genotypically using SNP data. Moreover, information on genotypic differentiation is unavailable for other subcontinent red colored breeds i.e., Gir, Brahman and Red Sindhi. Thus, present study was meant to investigate distinctive genetic architect if any of these red color breeds of same region of the world. Genotype data of 50K SNP Bead chip was retrieved online from Dryad database. Quality control measures were performed in Plink 1.9 software. Admixture, Principal component analysis and Multidimensional scaling were used for breeds distinction while genetic diversity was estimated using linkage disequilibrium. The genetic structure of these breeds clearly differentiated them from each other performed by admixture analysis from K =2 to K =5. Similarly, all breeds principally differentially scattered in PCA and MDS results. The study revealed different genetic structure for Cholistani and Sahiwal indicating as distinct breeds while Brahman had mixed genetic architect of other Bos indicus subcontinent breeds. The findings of the current study stress for separate genetic improvement program of Sahiwal and Cholistani cattle.

K1 Cholistani, Sahiwal, SNPs chip, Admixture, Pakistan PB Pakistan Agricultural Scientists Forum LK https://thejaps.org.pk/AbstractView.aspx?mid=2023-JAPS-1194