Differential microRNA expression in the ovaries of high and low prolificacy pregnant sows from an Iberian x Meishan F2 intercross

ABSTRACT: Prolificacy related traits are of great economical interest in the pig industry. microRNAs (miRNAs) are post-transcriptional regulators of gene expression important for reproductive processes. In pigs, the roles of ovarian miRNAs during gestation remain unknown although the ovaries are essential during gestation. It has been hypothesised that ovarian miRNAs could participate during the porcine gestation and, moreover, they could influence the prolificacy levels of sows. The miRNA expression profile was compared in the ovaries of pregnant Iberian x Meishan F2 sows displaying extreme phenotypes regarding prolificacy levels defined as the number of embryos (NE) attached to the uterus at 30-32 days of gestation. miR-146a-5p and miR-142-3p were differentially expressed between high (NEM-bM-^IM-

ORGANISM(S): Sus scrofa

SUBMITTER: Rolf SM-CM-8kilde 

PROVIDER: E-GEOD-41068 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress