title: [Preliminary study on the relationship between sow maternal behaviour during early lactation and polymorphism of PRLR gene].
abstract: PCR-RFLP technique was applied to analyze single nucleotide polymorphisms of PRLR gene in Minpig and Landrace to investigate the possible effect of PRLR gene on sow maternal behaviour. A Nae I-RFLP site was detected in the PRLP gene. The single nucleotide polymorphism, a T-->C transition at nucleotide 1,620 of the cDNA sequence, was a silent mutation. Least square analysis between the genotypes and the maternal behavioural traits showed that sows with genotype AB had a significantly higher frequency of lateral-lying-to- other-posture trait and percentage of sow-terminated nursing trait than sows with the AA and BB genotypes, although no significant differences were found in other behavioural traits. It is possible that allele A is the unfavorable allele for sow maternal behaviour.
authors.affiliation: College of Animal Science & Technology, Northeast Agricultural University, Harbin, China. cococsq@163.com
authors.forename: Shi-Quan
authors.initials: SQ
authors.lastname: Cui
authors.forename: Jian-Hong
authors.initials: JH
authors.lastname: Li
authors.forename: Wei-Guo
authors.initials: WG
authors.lastname: Cui
authors.forename: Jun
authors.initials: J
authors.lastname: Bao
mesh_terms: D000818:Animals; D001483:Base Sequence; D005260:Female; D005787:Gene Frequency; D005838:Genotype; D007774:Lactation / Q000502:physiology*; D008425:Maternal Behavior / Q000502:physiology*; D016133:Polymerase Chain Reaction; D012150:Polymorphism, Restriction Fragment Length; D020641:Polymorphism, Single Nucleotide; D011981:Receptors, Prolactin / Q000235:genetics*; D017422:Sequence Analysis, DNA; D013552:Swine
chemical_list: D011981:Receptors, Prolactin