Genetic characterization of Vietnamese Yellow cattle using mitochondrial DNA and Y‐chromosomal haplotypes and genes associated with economical traits

Abstract

Vietnamese Yellow cattle are native cattle well adapted to local tropical environment. The aim of this study was to investigate genetic characteristics of the Yellow cattle using molecular markers. We investigated the nucleotide sequences of mitochondrial DNA and SRY gene on Y chromosome, and genotyped SREBP‐1, SCD1, EDG1, NCAPG, DGAT1, MC1R, and HSP70 genes in the Yellow cattle population. The sequence analysis of the mitochondrial DNA showed that most of the cattle possesses zebu (Bos indicus) type I1 haplotype, suggesting relatively low genetic diversity in maternal lineage. The sequence analysis of the SRY gene indicates that while most of the males possess zebu type haplotype, taurine (Bos taurus) type haplotype was also observed, suggesting gene‐flow from taurine cattle. The results of the genotyping of the functional genes showed that the NCAPG, SCD, MC1R, and HsSP70 genes are polymorphic in the population, whereas the SREBP‐1, EDG1, and DGAT1 genes are monomorphic. Particularly, the presence of the desirable and undesirable alleles of the NCAPG and HSP70 genes, respectively, will be important for the selection of animals by potential performances in meat productivity and fertility. The present findings will be informative for future conservation and breeding of the Vietnamese Yellow cattle.

Genomic diversity and breed composition of Vietnamese smallholder dairy cows

“…This traditional method may be cheap and simple but is not applicable for VDC herds as pedigree records are rare. Microsatellites, mitochondrial DNA and Ychromosomal haplotypes can be used to estimate genetic diversity and population structure of cattle population, and these methods have been applied in some Vietnamese indigenous cattle populations, but they have not been applied in any VDC herds (Le et al, 2018;Pham et al, 2013). Currently, it is common practice that Vietnamese farmers estimate cow genotype (breed composition) according to its coat colour.…”

Ivermectin Treatment for Cattle Reduced the Survival of Two Malaria Vectors, Anopheles dirus and Anopheles epiroticus, Under Laboratory Conditions in Central Vietnam

“…All eight animals were male beef cattle of the common Bo Vang (Vietnamese Yellow) zebu breed. 7 Throughout the study, cattle were housed in outdoor pens, fed on grass, and were provided water ad librium ; regular welfare checks were performed by animal health staff. Cattle were treated with albendazole for 2 weeks before ivermectin dosing to clear residual parasites and then randomized to a treatment group.…”