2026-04-18T06:14:06Zhttps://recercat.cat/oai/request

oai:recercat.cat:20.500.12327/30672025-10-22T11:22:58Zcom_2072_4428com_2072_4427col_2072_487898

00925njm 22002777a 4500 dc Balcells, Ingrid author Castelló, Anna author Mercadé, Anna author Noguera, José Luis author Fernández-Rodríguez, Amanda author Sànchez, Armand author Tomàs, Anna author 2011-10-31 Background: Reproductive traits, such as prolificacy, are of great interest to the pig industry. Better understanding of their genetic architecture should help to increase the efficiency of pig productivity through the implementation of marker assisted selection (MAS) programmes. Results: The Mucin 4 (MUC4) gene has been evaluated as a candidate gene for a prolificacy QTL described in an Iberian × Meishan (Ib × Me) F2 intercross. For association analyses, two previously described SNPs (DQ124298: g.243A>G and DQ124298:g.344A>G) were genotyped in 347 pigs from the Ib × Me population. QTL for the number of piglets born alive (NBA) and for the total number of piglets born (TNB) were confirmed on SSC13 at positions 44 cM and 51 cM, respectively. The MUC4 gene was successfully located within the confidence intervals of both QTL. Only DQ124298:g.344A>G MUC4 polymorphism was significantly associated with both NBA and TNB (P-value < 0.05) with favourable effects coming from the Meishan origin. MUC4 expression level was determined in F2 sows displaying extreme phenotypes for the number of embryos (NE) at 30-32 days of gestation. Differences in the uterine expression of MUC4 were found between high (NE ≥ 13) and low (NE ≤ 11) prolificacy sows. Overall, MUC4 expression in high prolificacy sows was almost two-fold increased compared with low prolificacy sows. Conclusions: Our data suggest that MUC4 could play an important role in the establishment of an optimal uterine environment that would increase embryonic survival during pig gestation. Balcells, Ingrid, Anna Castelló, Anna Mercadé, José L Noguera, Amanda Fernández-Rodríguez, Armand Sànchez, and Anna Tomàs. 2011. “Analysis of Porcine MUC4 Gene as a Candidate Gene for Prolificacy QTL on SSC13 in an Iberian × Meishan F2 Population.” BMC Genomic Data 12 (1): 93. doi: 10.1186/1471-2156-12-93 1471-2156 http://hdl.handle.net/20.500.12327/3067 https://doi.org/10.1186/1471-2156-12-93 Analysis of porcine MUC4 gene as a candidate gene for prolificacy QTL on SSC13 in an Iberian × Meishan F2 population