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Full-sib mating can reduce deleterious effects associated with residual sperm inheritance in gynogenotes
Year:
2001
Authors :
Shirak, Andrey
;
.
Volume :
53
Co-Authors:
Shirak, A., Lab. of Fish Immunology/Genetics, Faculty of Life Sciences, Bar Ilan University, Ramat Gan 52900, Israel
Avtalion, R.R., Lab. of Fish Immunology/Genetics, Faculty of Life Sciences, Bar Ilan University, Ramat Gan 52900, Israel
Facilitators :
From page:
15
To page:
22
(
Total pages:
8
)
Abstract:
Fertilization 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 accumulate 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 suggest 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 control of genome integrality by purging supernumerary chromosome fragments.
Note:
Related Files :
aquaculture1 (domain1)
hybrid
Oreochromis aureus
Oreochromis niloticus
tilapia zillii
viability
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More details
DOI :
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
19689
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:30
Scientific Publication
Full-sib mating can reduce deleterious effects associated with residual sperm inheritance in gynogenotes
53
Shirak, A., Lab. of Fish Immunology/Genetics, Faculty of Life Sciences, Bar Ilan University, Ramat Gan 52900, Israel
Avtalion, R.R., Lab. of Fish Immunology/Genetics, Faculty of Life Sciences, Bar Ilan University, Ramat Gan 52900, Israel
Full-sib mating can reduce deleterious effects associated with residual sperm inheritance in gynogenotes
Fertilization 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 accumulate 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 suggest 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 control of genome integrality by purging supernumerary chromosome fragments.
Scientific Publication
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