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PLCz Functional Haplotypes Modulating Promoter Transcriptional Activity Are Associated with Semen Quality Traits in Chinese Holstein Bulls

The sperm-specific phospholipase C zeta ( PLCz ) is a candidate sperm-borne oocyte-activating factor that triggers a characteristic series of physiological stimuli via cytoplasmic Ca 2+ oscillations during fertilization. The molecular mechanisms involved in the regulation of PLCz gene expression rem... Full description

Journal Title: PLoS ONE 2013, Vol.8(3)
Main Author: Pan, Qing
Other Authors: Ju, Zhihua , Huang, Jinming , Zhang, Yan , Qi, Chao , Gao, Qin , Zhou, Lei , Li, Qiuling , Wang, Lingling , Zhong, Jifeng , Liu, Mei , Wang, Changfa
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ID: E-ISSN: 1932-6203 ; DOI: 10.1371/journal.pone.0058795 ; PMCID: 3598912 ; PMID: 23554927
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title: PLCz Functional Haplotypes Modulating Promoter Transcriptional Activity Are Associated with Semen Quality Traits in Chinese Holstein Bulls
format: Article
creator:
  • Pan, Qing
  • Ju, Zhihua
  • Huang, Jinming
  • Zhang, Yan
  • Qi, Chao
  • Gao, Qin
  • Zhou, Lei
  • Li, Qiuling
  • Wang, Lingling
  • Zhong, Jifeng
  • Liu, Mei
  • Wang, Changfa
subjects:
  • Research Article
  • Agriculture
  • Biology
  • Veterinary Science
ispartof: PLoS ONE, 2013, Vol.8(3)
description: The sperm-specific phospholipase C zeta ( PLCz ) is a candidate sperm-borne oocyte-activating factor that triggers a characteristic series of physiological stimuli via cytoplasmic Ca 2+ oscillations during fertilization. The molecular mechanisms involved in the regulation of PLCz gene expression remain largely unknown. To explore the genetic variations in the 5′-flanking region of the PLCz gene and their common haplotypes in Chinese Holstein bulls, as well as to determine whether these variations affect bovine semen quality traits and transcriptional activity, DNA samples were collected from Chinese Holstein bulls and sequenced for the identification of genetic variants in the 5′-flanking region of PLCz . Two genetic variants were identified, and their haplotypic profiles were constructed. The two novel genetic variations (g. −456 G>A and g. +65 T>C) were genotyped in 424 normal Chinese Holstein bulls. Bioinformatics analysis revealed that both loci are in transcription factor binding sites of the core promoter region. The association studies revealed that the two genetic variations and their haplotype combinations significantly affected semen quality traits. Using serially truncated constructs of the bovine PLCz promoters and the luciferase reporter, we found that a 726 bp (−641 nt to +112 nt) fragment constitutes the core promoter region. Furthermore, four haplotypes, H1H1 (GTGT), H2H2 (GCGC), H3H3 (ATAT), and H4H4 (ACAC), were significantly associated with semen quality traits and successfully transfected into MLTC-1 cell lines. The luciferase reporter assay showed that the different haplotypes exhibited distinct promoter activities. Maximal promoter activity was demonstrated by the H2H2 haplotypes, as compared with the other haplotypes. To the best of our knowledge, this study is the first report on genetic variants and their respective haplotypes in the 5′-flanking region of PLCz gene that can influence the semen quality of Chinese Holstein bulls as well as contribute to the transcriptional activity of the PLCz promoter.
language:
source:
identifier: E-ISSN: 1932-6203 ; DOI: 10.1371/journal.pone.0058795 ; PMCID: 3598912 ; PMID: 23554927
fulltext: fulltext
issn:
  • 1932-6203
  • 19326203
url: Link


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titlePLCz Functional Haplotypes Modulating Promoter Transcriptional Activity Are Associated with Semen Quality Traits in Chinese Holstein Bulls
creatorPan, Qing ; Ju, Zhihua ; Huang, Jinming ; Zhang, Yan ; Qi, Chao ; Gao, Qin ; Zhou, Lei ; Li, Qiuling ; Wang, Lingling ; Zhong, Jifeng ; Liu, Mei ; Wang, Changfa
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subjectResearch Article ; Agriculture ; Biology ; Veterinary Science
descriptionThe sperm-specific phospholipase C zeta ( PLCz ) is a candidate sperm-borne oocyte-activating factor that triggers a characteristic series of physiological stimuli via cytoplasmic Ca 2+ oscillations during fertilization. The molecular mechanisms involved in the regulation of PLCz gene expression remain largely unknown. To explore the genetic variations in the 5′-flanking region of the PLCz gene and their common haplotypes in Chinese Holstein bulls, as well as to determine whether these variations affect bovine semen quality traits and transcriptional activity, DNA samples were collected from Chinese Holstein bulls and sequenced for the identification of genetic variants in the 5′-flanking region of PLCz . Two genetic variants were identified, and their haplotypic profiles were constructed. The two novel genetic variations (g. −456 G>A and g. +65 T>C) were genotyped in 424 normal Chinese Holstein bulls. Bioinformatics analysis revealed that both loci are in transcription factor binding sites of the core promoter region. The association studies revealed that the two genetic variations and their haplotype combinations significantly affected semen quality traits. Using serially truncated constructs of the bovine PLCz promoters and the luciferase reporter, we found that a 726 bp (−641 nt to +112 nt) fragment constitutes the core promoter region. Furthermore, four haplotypes, H1H1 (GTGT), H2H2 (GCGC), H3H3 (ATAT), and H4H4 (ACAC), were significantly associated with semen quality traits and successfully transfected into MLTC-1 cell lines. The luciferase reporter assay showed that the different haplotypes exhibited distinct promoter activities. Maximal promoter activity was demonstrated by the H2H2 haplotypes, as compared with the other haplotypes. To the best of our knowledge, this study is the first report on genetic variants and their respective haplotypes in the 5′-flanking region of PLCz gene that can influence the semen quality of Chinese Holstein bulls as well as contribute to the transcriptional activity of the PLCz promoter.
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titlePLCz Functional Haplotypes Modulating Promoter Transcriptional Activity Are Associated with Semen Quality Traits in Chinese Holstein Bulls
descriptionThe sperm-specific phospholipase C zeta ( PLCz ) is a candidate sperm-borne oocyte-activating factor that triggers a characteristic series of physiological stimuli via cytoplasmic Ca 2+ oscillations during fertilization. The molecular mechanisms involved in the regulation of PLCz gene expression remain largely unknown. To explore the genetic variations in the 5′-flanking region of the PLCz gene and their common haplotypes in Chinese Holstein bulls, as well as to determine whether these variations affect bovine semen quality traits and transcriptional activity, DNA samples were collected from Chinese Holstein bulls and sequenced for the identification of genetic variants in the 5′-flanking region of PLCz . Two genetic variants were identified, and their haplotypic profiles were constructed. The two novel genetic variations (g. −456 G>A and g. +65 T>C) were genotyped in 424 normal Chinese Holstein bulls. Bioinformatics analysis revealed that both loci are in transcription factor binding sites of the core promoter region. The association studies revealed that the two genetic variations and their haplotype combinations significantly affected semen quality traits. Using serially truncated constructs of the bovine PLCz promoters and the luciferase reporter, we found that a 726 bp (−641 nt to +112 nt) fragment constitutes the core promoter region. Furthermore, four haplotypes, H1H1 (GTGT), H2H2 (GCGC), H3H3 (ATAT), and H4H4 (ACAC), were significantly associated with semen quality traits and successfully transfected into MLTC-1 cell lines. The luciferase reporter assay showed that the different haplotypes exhibited distinct promoter activities. Maximal promoter activity was demonstrated by the H2H2 haplotypes, as compared with the other haplotypes. To the best of our knowledge, this study is the first report on genetic variants and their respective haplotypes in the 5′-flanking region of PLCz gene that can influence the semen quality of Chinese Holstein bulls as well as contribute to the transcriptional activity of the PLCz promoter.
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abstractThe sperm-specific phospholipase C zeta ( PLCz ) is a candidate sperm-borne oocyte-activating factor that triggers a characteristic series of physiological stimuli via cytoplasmic Ca 2+ oscillations during fertilization. The molecular mechanisms involved in the regulation of PLCz gene expression remain largely unknown. To explore the genetic variations in the 5′-flanking region of the PLCz gene and their common haplotypes in Chinese Holstein bulls, as well as to determine whether these variations affect bovine semen quality traits and transcriptional activity, DNA samples were collected from Chinese Holstein bulls and sequenced for the identification of genetic variants in the 5′-flanking region of PLCz . Two genetic variants were identified, and their haplotypic profiles were constructed. The two novel genetic variations (g. −456 G>A and g. +65 T>C) were genotyped in 424 normal Chinese Holstein bulls. Bioinformatics analysis revealed that both loci are in transcription factor binding sites of the core promoter region. The association studies revealed that the two genetic variations and their haplotype combinations significantly affected semen quality traits. Using serially truncated constructs of the bovine PLCz promoters and the luciferase reporter, we found that a 726 bp (−641 nt to +112 nt) fragment constitutes the core promoter region. Furthermore, four haplotypes, H1H1 (GTGT), H2H2 (GCGC), H3H3 (ATAT), and H4H4 (ACAC), were significantly associated with semen quality traits and successfully transfected into MLTC-1 cell lines. The luciferase reporter assay showed that the different haplotypes exhibited distinct promoter activities. Maximal promoter activity was demonstrated by the H2H2 haplotypes, as compared with the other haplotypes. To the best of our knowledge, this study is the first report on genetic variants and their respective haplotypes in the 5′-flanking region of PLCz gene that can influence the semen quality of Chinese Holstein bulls as well as contribute to the transcriptional activity of the PLCz promoter.
pubPublic Library of Science
doi10.1371/journal.pone.0058795
pmid23554927
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date2013-03-15