Transcriptome profiling identifies differentially expressed genes in Huoyan goose ovaries between the laying period and ceased period

PLoS One. 2014 Nov 24;9(11):e113211. doi: 10.1371/journal.pone.0113211. eCollection 2014.

Abstract

The Huoyan goose is famous for its high egg-laying performance and is listed as a nationally protected domestic animal by the Chinese government. To elucidate the key regulatory genes involved in Huoyan goose egg laying, RNA from ovarian tissue during the ceased and laying periods was sequenced using the Illumina HiSeq 2000 sequencing platform. More than 12 million reads were produced in ceased and laying libraries that included 11,896,423 and 12,534,799 clean reads, respectively. More than 20% of the reads were matched to the reference genome, and 23% of the reads were matched to reference genes. Genes with a false discovery rate (FDR) ≤0.001 and log2ratio ≧1 or ≤-1 were characterized as differentially expressed, and 344 up-regulated and 344 down-regulated genes were classified into functional categories. Twelve genes that are mainly involved in pathways for reproduction regulation, such as steroid hormone biosynthesis, GnRH signaling pathways, oocyte meiosis, progesterone-mediated oocyte maturation, steroid biosynthesis, calcium signaling pathways, and G-protein coupled receptor signaling pathway were selected for validation by a quantitative real-time polymerase chain reaction (qRT-PCR) analysis, the qRT-PCR results are consistent with the general expression patterns of those genes from the Illumina sequencing. These data provide comprehensive gene expression information at the transcriptional level that might increase our understanding of the Huoyan goose's reproductive biology.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anovulation / genetics
  • Avian Proteins / genetics
  • Female
  • Geese / genetics*
  • Gene Expression Profiling*
  • Gene Library
  • Gene Ontology
  • Ovary / metabolism*
  • Ovulation / genetics*
  • Reverse Transcriptase Polymerase Chain Reaction
  • Sequence Analysis, RNA
  • Transcriptome*

Substances

  • Avian Proteins

Associated data

  • SRA/SRR1119186

Grants and funding

This study was supported by the National Natural Science Foundation of China (Grant No. 31172286). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.