Production of YY rainbow trout males by self-fertilization of induced hermaphrodites.
Dietary administration of various estrogens for three months from swim-up stage resulted in excess of females, the remainder of the treated groups consisting of males and hermaphrodites. Mature hermaphrodites were self-fertilized or mated with standard males and females. These hermaphrodites and some of the estrogen-treated females proved to be genetic males; the frequencies of males obtained from their ova averaged 76.6%, suggesting viability of the YY genotype. Four of nine tested males of those progenies provided all male offspring when mated with standard females.
Chevassus
B
B
Laboratoire de Génétique des Poissons, CRJ-INRA, Jouy-en-Josas, France.
Devaux
A
A
Chourrout
D
D
Jalabert
B
B
D000818:Animals; D012734:Disorders of Sex Development; D004970:Estrone / Q000494:pharmacology; D004997:Ethinyl Estradiol / Q000494:pharmacology; D005260:Female; D005306:Fertilization; D005837:Genitalia, Male / Q000187:drug effects; D005838:Genotype; D008297:Male; D012487:Salmonidae / Q000235:genetics*; D012744:Sex Ratio; D014337:Trout / Q000235:genetics*; D014998:Y Chromosome
D004970:Estrone; D004997:Ethinyl Estradiol