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- W848623048 abstract "SUMMARY Poecilia reticulata Peters (Poeciliidae Osteichthyes) palla males, characterized by vertebral fusions, though producing viable sperm, are almost totally unable to copulate. In large tanks fertile copulation is very rare, whereas insemination rise strikingly in number when single pairs are placed in small containers. In palla males the gonapophyses within the suspensorium are often malformed and verticalized, thus interfering with the gonactinost movement. Because of these anomalies, together with the stiffening of the vertebral column, the gonopodium rarely succeeds in penetrating the female urogenital sinus; the chance of casual fertile copulations increases in a restricted environment. Unlike the analogous Poeciliopsis prolifica Miller, stubby mutants, in which vertebral fusions lead to an increase in gonapophysis number, in Poecilia reticulata palla mutants the gonapophysis number is the same as in wild type males. This condition confirms that in Poecilia reticulata the competence to elaborate ..." @default.
- W848623048 created "2016-06-24" @default.
- W848623048 creator A5027668578 @default.
- W848623048 date "2013-07-12" @default.
- W848623048 modified "2023-09-26" @default.
- W848623048 title "INDUCTION OF ATYPICAL GONAPOPHYSES WITHIN THE GONOPODIAL SUSPENSORIUM OF THE PALLA MUTANT MALE OF POECILIA RETICULATA PETERS (POECILIIDAE OSTEICHTHYES)" @default.
- W848623048 hasPublicationYear "2013" @default.
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