Physical mapping of porcine seasonality genes

T M Skinner, N L Lopez-Corrales, S I Anderson, M Yerle, A L Archibald

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Seasonal infertility in sows is a problem in the pig industry characterized by delayed onset of puberty in summer and decreased farrowing rate resulting from silent oestrus and aborted pregnancy. Summer infertility is thought to be influenced by heat, sunburn and stress. However, the strongest contributory factor is photoperiod. The difference in seasonality between wild boar and commercial pig breeds suggests that there may be a genetic component to this trait. The maps and associated molecular tools emerging from the pig genome project have created opportunities to examine the genetic component of seasonal infertility. We are identifying and mapping genes that are likely to be involved in biological clock mechanisms and the melatonin pathways as candidate seasonality genes.
Original languageEnglish
Pages (from-to)143-6
Number of pages4
JournalAnimal Biotechnology
Issue number3
Publication statusPublished - 1999

Keywords / Materials (for Non-textual outputs)

  • Abortion, Veterinary
  • Animals
  • Chromosome Mapping
  • Female
  • Genome
  • Infertility
  • Melatonin
  • Photoperiod
  • Pregnancy
  • Seasons
  • Swine


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