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標題: A novel SNP of the PNRC1 gene and its association with reproductive traits in Tsaiya ducks
作者: M.-T.Chang
關鍵字: PNRC1 gene;SNP;Reproductive trait;Tsaiya duck
Project: Theriogenology, Volume 78, Page(s) 140–146.
Proline-rich nuclear receptor coactivator (PNRC)1 is a member of a new family of nuclear receptor coactivators capable of
potentiating the transcriptional activity of nuclear receptors. The objective was to investigate the relationship between PNRC1
genotypes of single nucleotide polymorphism (SNP) and reproductive traits in ducks. Brown Tsaiya ducks (N 305) from two
lines, a control line with no selection and the selected line, were used. Polymerase chain reaction-single strand polymorphism and
DNA sequencing were done to screen polymorphisms of the PNRC1 gene. A novel SNP (G98T) in 3=-untranslated region of the
PNRC1 gene was identified and resulted in two genotypes, GG and GT. The frequencies of genotype GG and allele G were higher
in both lines investigated. Regarding egg weight at first egg (EWFE), based on SNP trait association analysis, ducks with the GG
genotype had a 4.48 g per egg greater egg weight at first egg when compared with ducks of the GT genotype in the control line
(P 0.05). In addition, this SNP was associated with the hatchability rate (HR) in the selected line; ducks with the GT genotype
had a 6.70% higher hatchability rate than those with the GG genotype (P 0.05). Therefore, we inferred that the PNRC1 gene
could be a candidate locus or linked to a major gene that influenced egg weight-related and hatchability traits in Tsaiya ducks.
Further investigations on additional duck populations with larger sample sizes are needed to confirm these results.
� 2012 Elsevier Inc. All rights reserved.
ISSN: 0093-691X
DOI: 10.1016/j.theriogenology.2012.01.029
Appears in Collections:動物科學系

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