Journal
ANIMAL BIOTECHNOLOGY
Volume -, Issue -, Pages -Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10495398.2022.2063729
Keywords
Animal reproduction; biotechnology; fertility; cattle
Funding
- World Academy of Science (TWAS) [17-466 RG/BIO/AS_I -FR3240297769]
- Special Allocation Funds [BS/174]
- Ministry of Science and Technology, Government of the People's Republic of Bangladesh
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This study investigated the genetic variation of CatSper1 and TNP2 genes in indigenous and crossbred cattle in Bangladesh. Results showed that indigenous cattle only possessed the TT genotype, while crossbred cattle had both TT and CT genotypes. CatSper1 gene was conserved in both breeds, while TNP2 gene was mostly conserved in indigenous breeds and partially conserved in crossbreds.
CatSper1 and TNP2 genes are known to affect semen quality and fertility parameters, including sperm motility and maturation. However, studies are yet to examine the genes in indigenous and crossbred cattle in Bangladesh. Therefore, this study was conducted to determine the genetic variants of CatSper1 and TNP2 in indigenous and crossbred cattle in Bangladesh. Blood samples were collected from 130 indigenous and 70 crossbred (Holstein Friesian x indigenous) cattle. Nucleotide variation was evaluated by PCR-RFLP and sequencing. The results of the study showed that the indigenous cattle possessed only TT genotype (1.0), whereas the crossbreds possessed both TT (0.91) and CT (0.09) genotypes, which was validated by gene sequencing. Additionally, the CatSper1 was conserved in both the indigenous and crossbred cattle, suggesting good semen quality and fertility. However, the TNP2 was conserved in the indigenous breeds and mostly conserved in the crossbreds. The findings of this study reveal the diversity of CatSper1 and TNP2 genes in indigenous and crossbred cattle.
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