Identification of polymorphism and association analysis with reproductive traits in the porcine RNF4 gene

The ring finger protein 4 gene ( RNF4), which might play a role in fetal germ cell development as well as in oocyte and granulosa cell maturation, was one of the potential candidate genes for reproductive traits. In the present work, we isolated the complete coding sequence of porcine RNF4 gene, ide...

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Veröffentlicht in:Animal reproduction science 2009-02, Vol.110 (3), p.283-292
Hauptverfasser: Niu, B.Y., Ye, L.Z., Li, F.E., Deng, C.Y., Jiang, S.W., Lei, M.G., Xiong, Y.Z.
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container_end_page 292
container_issue 3
container_start_page 283
container_title Animal reproduction science
container_volume 110
creator Niu, B.Y.
Ye, L.Z.
Li, F.E.
Deng, C.Y.
Jiang, S.W.
Lei, M.G.
Xiong, Y.Z.
description The ring finger protein 4 gene ( RNF4), which might play a role in fetal germ cell development as well as in oocyte and granulosa cell maturation, was one of the potential candidate genes for reproductive traits. In the present work, we isolated the complete coding sequence of porcine RNF4 gene, identified a single nucleotide polymorphism (SNP: T/C) in intron5, and developed a PCR- SacII-RFLP genotyping assay. Association of this SNP with reproductive traits was assessed in three populations with diverse genetic backgrounds. One was Chinese Qingping sows. Another was consisted of crossbred sows derived from Landrace, Large White, Chinese Tongcheng and/or Chinese Meishan (Line DIV). The third is Large White × Meishan (LW × M) F 2 slaughtered population. Statistical analysis demonstrated that, in the first parity, the difference between RNF4 genotypes and reproductive traits of both Qingping and Line DIV sows was not significant. In the second and subsequent litters, CC animals in Qingping population had more piglets born (+1.74 piglets) and piglets born alive (+2.02 piglets) than sows with the TT genotype ( P < 0.05). Line DIV sows inheriting the CC genotype had additional 0.69 piglets born compared to the TC animals ( P < 0.05) in second and subsequent litters. No significant difference was observed between genotypes and reproductive tracts components in F 2 animals. In addition, we found RNF4 gene has a significant additive effect on both piglet born and piglet born alive in Qingping animals ( P < 0.05). Results here suggested that the RNF4 SNP was significantly associated with litter size in two populations and could be useful in selection for increasing litter size in pigs. Further studies were needed to confirm these preliminary researches.
doi_str_mv 10.1016/j.anireprosci.2008.01.020
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In the present work, we isolated the complete coding sequence of porcine RNF4 gene, identified a single nucleotide polymorphism (SNP: T/C) in intron5, and developed a PCR- SacII-RFLP genotyping assay. Association of this SNP with reproductive traits was assessed in three populations with diverse genetic backgrounds. One was Chinese Qingping sows. Another was consisted of crossbred sows derived from Landrace, Large White, Chinese Tongcheng and/or Chinese Meishan (Line DIV). The third is Large White × Meishan (LW × M) F 2 slaughtered population. Statistical analysis demonstrated that, in the first parity, the difference between RNF4 genotypes and reproductive traits of both Qingping and Line DIV sows was not significant. In the second and subsequent litters, CC animals in Qingping population had more piglets born (+1.74 piglets) and piglets born alive (+2.02 piglets) than sows with the TT genotype ( P &lt; 0.05). Line DIV sows inheriting the CC genotype had additional 0.69 piglets born compared to the TC animals ( P &lt; 0.05) in second and subsequent litters. No significant difference was observed between genotypes and reproductive tracts components in F 2 animals. In addition, we found RNF4 gene has a significant additive effect on both piglet born and piglet born alive in Qingping animals ( P &lt; 0.05). Results here suggested that the RNF4 SNP was significantly associated with litter size in two populations and could be useful in selection for increasing litter size in pigs. 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Line DIV sows inheriting the CC genotype had additional 0.69 piglets born compared to the TC animals ( P &lt; 0.05) in second and subsequent litters. No significant difference was observed between genotypes and reproductive tracts components in F 2 animals. In addition, we found RNF4 gene has a significant additive effect on both piglet born and piglet born alive in Qingping animals ( P &lt; 0.05). Results here suggested that the RNF4 SNP was significantly associated with litter size in two populations and could be useful in selection for increasing litter size in pigs. 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In the present work, we isolated the complete coding sequence of porcine RNF4 gene, identified a single nucleotide polymorphism (SNP: T/C) in intron5, and developed a PCR- SacII-RFLP genotyping assay. Association of this SNP with reproductive traits was assessed in three populations with diverse genetic backgrounds. One was Chinese Qingping sows. Another was consisted of crossbred sows derived from Landrace, Large White, Chinese Tongcheng and/or Chinese Meishan (Line DIV). The third is Large White × Meishan (LW × M) F 2 slaughtered population. Statistical analysis demonstrated that, in the first parity, the difference between RNF4 genotypes and reproductive traits of both Qingping and Line DIV sows was not significant. In the second and subsequent litters, CC animals in Qingping population had more piglets born (+1.74 piglets) and piglets born alive (+2.02 piglets) than sows with the TT genotype ( P &lt; 0.05). Line DIV sows inheriting the CC genotype had additional 0.69 piglets born compared to the TC animals ( P &lt; 0.05) in second and subsequent litters. No significant difference was observed between genotypes and reproductive tracts components in F 2 animals. In addition, we found RNF4 gene has a significant additive effect on both piglet born and piglet born alive in Qingping animals ( P &lt; 0.05). Results here suggested that the RNF4 SNP was significantly associated with litter size in two populations and could be useful in selection for increasing litter size in pigs. Further studies were needed to confirm these preliminary researches.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>18358646</pmid><doi>10.1016/j.anireprosci.2008.01.020</doi><tpages>10</tpages></addata></record>
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source MEDLINE; Elsevier ScienceDirect Journals
subjects additive gene effects
Amino Acid Sequence
animal genetics
animal tissues
Animals
Animals, Newborn
Base Sequence
breed differences
Crosses, Genetic
Female
female fertility
gene expression
Gene Expression Profiling - veterinary
gene frequency
genes
genetic polymorphism
genome
genomics
Genotype
Litter size
Litter Size - genetics
molecular genetics
Molecular Sequence Data
mutation
Nuclear Proteins - genetics
Pig
Polymorphism, Restriction Fragment Length
Polymorphism, Single Nucleotide
Reproduction - genetics
reproductive traits
Reverse Transcriptase Polymerase Chain Reaction - veterinary
Ring finger protein 4
ring finger protein 4 gene
RNA - chemistry
RNA - genetics
selection criteria
Single nucleotide polymorphism
sows
Swine - genetics
swine breeds
Transcription Factors - genetics
Zinc Fingers - genetics
title Identification of polymorphism and association analysis with reproductive traits in the porcine RNF4 gene
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