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Flow‐Cytometric Confirmation of Aneuploidy in Sperm from Triploid Rainbow Trout
Author(s) -
Benfey Tillmann J.,
Solar Igor I.,
De Jong Gary,
Donaldson Edward M.
Publication year - 1986
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1986)115<838:fcoais>2.0.co;2
Subject(s) - rainbow trout , ploidy , biology , sperm , aneuploidy , human fertilization , salmo , andrology , reproduction , zoology , trout , chromosome , parthenogenesis , genetics , fish <actinopterygii> , embryo , fishery , medicine , gene
Triploid rainbow trout Salmo gairdneri produce spermatozoa with DNA contents intermediate between haploid and diploid values. This confirms that these spermatozoa are aneuploid and explains why progeny produced from the fertilization of haploid eggs with such sperm are not viable. Triploid males have significantly lower spermatocrit and smaller testes than diploids, but still develop normal secondary sexual characteristics and exhibit postspawning mortality.