Mitochondrial DNA polymorphisms and fertility in beef cattle

Autor: James M. Cummins, Sutarno, J. Greeff, Alan J. Lymbery
Rok vydání: 2002
Předmět:
Zdroj: Theriogenology. 57:1603-1610
ISSN: 0093-691X
DOI: 10.1016/s0093-691x(02)00664-7
Popis: Four hundred and twenty-two beef cattle of two different breeds (purebred Hereford and composite multibreed) were characterized by polymerase chain reaction-restriction fragment length polymorphism, using the restriction enzymes ApaI, AvaII, HindIII, PstI, SpeI, SspI and TaqI in two regions (the D-loop and the ND-5 gene) of mitochondrial DNA. The association between molecular haplotypes and records on calving rate, defined as the mean number of live calves born per year over 4 years, were examined by analysis of variance. A significant association was found between calving rate and mitochondrial polymorphisms in both breeds. This may have implications for genetically improving cow fertility.
Databáze: OpenAIRE