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Sex steroids in diploid and triploid gibel carp (Carassius gibelio) of both sexes in different phases of the reproductive cycle.
Przybyl, Anna; Juchno, Dorota; Przybylski, Miroslaw; Leska, Anna; Nowosad, Joanna; Kucharczyk, Dariusz; Boron, Alicja.
Afiliación
  • Przybyl A; Department of Zoology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, 5 Oczapowskiego Str., 10-718 Olsztyn, Poland.
  • Juchno D; Department of Zoology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, 5 Oczapowskiego Str., 10-718 Olsztyn, Poland.
  • Przybylski M; Department of Ecology and Vertebrate Zoology, Faculty of Biology and Environmental Protection, University of Lodz, 12/16 Banacha Str., 90-237 Lodz, Poland.
  • Leska A; Department of Zoology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, 5 Oczapowskiego Str., 10-718 Olsztyn, Poland.
  • Nowosad J; Department of Veterinary Prevention and Feed Hygiene, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, 13 Oczapowskiego Str., 10-718 Olsztyn, Poland; Department of Research and Development, Chemprof, Gutkowo 54B, 11-041 Olsztyn, Poland.
  • Kucharczyk D; Department of Ichthyology and Aquaculture, Faculty of Animal Bioengineering, University of Warmia and Mazury in Olsztyn, 5 Oczapowskiego Str., 10-718 Olsztyn, Poland; Department of Research and Development, Chemprof, Gutkowo 54B, 11-041 Olsztyn, Poland.
  • Boron A; Department of Zoology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, 5 Oczapowskiego Str., 10-718 Olsztyn, Poland. Electronic address: alibo@uwm.edu.pl.
Anim Reprod Sci ; 244: 107053, 2022 Sep.
Article en En | MEDLINE | ID: mdl-35987092
The changes in concentrations of 17ß-estradiol (E2), testosterone (T), 11-ketotestosterone (11-KT) in the gonads and plasma of diploid and triploid gibel carp (Carassius gibelio) from the Siemianowka Reservoir, the Vistula River drainage were quantified and compared using an enzyme immunoassay. The phase of gonad maturity was based on histological analysis and the gonadosomatic index. All fish had properly developed gonads in the pre-spawning, spawning and late spawning phases of the reproductive cycle in the fish collected in April, June and October, respectively. Diploid and triploid females and males did not differ in mean GSI in all reproductive phases. In October, ovaries of most females contained vitellogenic oocytes, testes had large numbers of spermatozoa. The hormone concentrations in both tissues depended mainly on the reproductive phase, but not on ploidy. The patterns of changes in E2 concentrations was similar in females and males. In the pre-spawning phase, diploid and triploid females showed differences in the concentrations of 11-KT in gonads and plasma, and T in plasma. Diploid males differed in pattern of T concentrations in gonads and plasma, while all males showed a similar pattern of 11-KT plasma concentrations. Spermatozoa observed in triploid males suggest that they participate in reproduction. Gibel carps, regardless of ploidy, had an extended period of reproduction, which makes this invasive species a potentially greater threat to native ichthyofauna. The sex androgen concentrations that differed between 2 n and 3 n females could be physiological factors potentially contributing to the coexistence of gynogenetic C. gibelio females and sexual diploids.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Carpas / Cyprinidae Límite: Animals Idioma: En Revista: Anim Reprod Sci Año: 2022 Tipo del documento: Article País de afiliación: Polonia Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Carpas / Cyprinidae Límite: Animals Idioma: En Revista: Anim Reprod Sci Año: 2022 Tipo del documento: Article País de afiliación: Polonia Pais de publicación: Países Bajos