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Gamete compatibility between marine and estuarine Acanthopagrus spp. (Sparidae) and their hybrids

Journal Article


Abstract


  • On Australia's south-east coast, hybridization between estuary-restricted black bream Acanthopagrus butcheri Munro and its migratory coastal congener yellowfin bream Acanthopagrus australis (Gunther) has led to estuarine populations largely composed of hybrids that are most genetically similar to A. butcheri. The fertilization success achieved when ova of estuary-caught A. butcheri were fertilized with the cryogenically preserved sperm of either ocean-caught A. australis or estuary-caught A. butcheri-like was compared. The experimental crosses, which by chance included both pure parental and hybrid bream, revealed no evidence that gametic incompatibility provides a barrier to fertilization among both pure species and their hybrids.

Authors


  •   Roberts, David G. (external author)
  •   Gray, Charles A. (external author)
  •   West, Ron J. (external author)
  •   Ayre, David J.

Publication Date


  • 2010

Citation


  • Roberts, D. Gary., Gray, C. A., West, R. J. & Ayre, D. J. (2010). Gamete compatibility between marine and estuarine Acanthopagrus spp. (Sparidae) and their hybrids. Journal of Fish Biology, 77 (2), 425-431.

Scopus Eid


  • 2-s2.0-77955098911

Ro Metadata Url


  • http://ro.uow.edu.au/scipapers/5163

Number Of Pages


  • 6

Start Page


  • 425

End Page


  • 431

Volume


  • 77

Issue


  • 2

Abstract


  • On Australia's south-east coast, hybridization between estuary-restricted black bream Acanthopagrus butcheri Munro and its migratory coastal congener yellowfin bream Acanthopagrus australis (Gunther) has led to estuarine populations largely composed of hybrids that are most genetically similar to A. butcheri. The fertilization success achieved when ova of estuary-caught A. butcheri were fertilized with the cryogenically preserved sperm of either ocean-caught A. australis or estuary-caught A. butcheri-like was compared. The experimental crosses, which by chance included both pure parental and hybrid bream, revealed no evidence that gametic incompatibility provides a barrier to fertilization among both pure species and their hybrids.

Authors


  •   Roberts, David G. (external author)
  •   Gray, Charles A. (external author)
  •   West, Ron J. (external author)
  •   Ayre, David J.

Publication Date


  • 2010

Citation


  • Roberts, D. Gary., Gray, C. A., West, R. J. & Ayre, D. J. (2010). Gamete compatibility between marine and estuarine Acanthopagrus spp. (Sparidae) and their hybrids. Journal of Fish Biology, 77 (2), 425-431.

Scopus Eid


  • 2-s2.0-77955098911

Ro Metadata Url


  • http://ro.uow.edu.au/scipapers/5163

Number Of Pages


  • 6

Start Page


  • 425

End Page


  • 431

Volume


  • 77

Issue


  • 2