Analysis of the impact of cytoplasmic and mitochondrial inheritance on litter size and carcass in rabbits
2018
Nguyen Thao Nguyen | Vladimir Brajkovic | Vlatka Cubric-Curik | Strahil Ristov | Zoran Veir | Zsolt Szendrő | Istvan Nagy | Ino Curik
The effects of mitogenome variation on economically important traits have been reported in a number of domestic animal species. In this study, the first of its kind on rabbits, we have performed the estimation of the contribution of cytoplasmic and D-loop mitochondrial DNA (mtDNA) sequence effects on the litter size and carcass traits in three Pannon rabbit breeds (Pannon Ka, Pannon Large and Pannon White). The observed effects of both estimates, coming from cytoplasmic or D-loop mtDNA variation, were negligible. The most likely explanation for the results obtained is the lack of mitogenome polymorphism in all three populations, as suggested from the analysis performed on the D-loop mtDNA sequence, here assigned to the two most frequent rabbit haplotypes. The extent of potential benefits of the introduction, or alteration, of mitogenome variation in rabbit breeding remains an open question for future research.
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