Full-Sib Mating Can Reduce Deleterious Effects Associated With Residual Sperm Inheritance In Gynogenotes

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dc.contributor.authorShirak, Andrey
dc.contributor.authorAvtalion, Ramy R.
dc.date.accessioned2012-01-17T22:16:09Z
dc.date.available2012-01-17T22:16:09Z
dc.date.issued2001
dc.description.abstractFertilization of Oreochromis aureus eggs with UV-irradiated sperm from the closely related species O. niloticus, followed by diploidy restoration, produced offspring with lower embryo viability and higher skeletal deformation rates than siblings generated with sperm from a genetically distant species (Tilapia zillii). Results showed that: (a) deleterious effects due to O. niloticus sperm accu- mulate in gynogenetic fish over generations; (b) such effects are eliminated when using T. zillii sperm to fertilize eggs from gynogenetic mothers produced by full-sib matings. These results sug- gest that: (a) deleterious effects are associated with residual male DNA fragments which may be passed on to descendent offspring; (b) such fragments are significantly purged following full-sib mating. These findings suggest that biparental reproduction may play an important role in the con- trol of genome integrality by purging supernumerary chromosome fragments.
dc.format.extent8 pages
dc.identifier.citationShirak, A., & Avtalion, R.R. (2001). Full-Sib Mating Can Reduce Deleterious Effects Associated With Residual Sperm Inheritance In Gynogenotes. The Israeli Journal of Aquaculture - Bamidgeh, 53(1), 15-22.
dc.identifier.issn0792-156X
dc.identifier.urihttp://hdl.handle.net/10524/18970
dc.publisherIsraeli Journal of Aquaculture - BAMIGDEH
dc.relation.ispartofseriesThe Israeli Journal of Aquaculture - Bamidgeh
dc.subject.lcshFish culture--Israel--Periodicals.
dc.subject.lcshFish culture--Periodicals.
dc.subject.lcshAquaculture--Israel--Periodicals.
dc.subject.lcshAquaculture--Periodicals.
dc.titleFull-Sib Mating Can Reduce Deleterious Effects Associated With Residual Sperm Inheritance In Gynogenotes

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IJA Volume 53, Issue 1, 2001