| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Ocidental. Para informações adicionais entre em contato com cpaa.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Pesca e Aquicultura. |
|
Data corrente: |
24/03/2020 |
|
Data da última atualização: |
22/01/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
AMARAL, A. da C.; LIMA, A. F.; KIRSCHNIK, L. N. G.; O'SULLIVAN, F. L. A. |
|
Afiliação: |
ALDESSANDRO DA COSTA AMARAL, UNIVERSIDADE FEDERAL DO AMAZONAS; ADRIANA FERREIRA LIMA, CNPASA; LUCIANA NAKAGHI GANECO KIRSCHNIK, CNPASA; FERNANDA LOUREIRO ALMEIDA OSULLIVAN, CPAA. |
|
Título: |
Morphological characterization of pirarucu Arapaima gigas (Schinz, 1822) gonadal differentiation. |
|
Ano de publicação: |
2020 |
|
Fonte/Imprenta: |
Journal of Morphology, v. 281, n. 4/5, p. 491-499, Apr./May 2020. |
|
DOI: |
10.1002/jmor.21116 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Arapaima gigas is a giant air-breathing and bony tongue fish from the Amazon basin and a promising species for aquaculture. A. gigas farming industry is still not established because of the lack of information on its reproductive physiology. Reproduction in captivity cannot be manipulated or stimulated, and the identification of males and females in a broodstock is not easy. We aimed to reveal the morphological sex differentiation of pirarucu as studies involving gonad development are essential to understanding the reproductive physiology of any species. We performed histological analysis on the whole body and extracted the gonads of 150 juveniles. The first sign of ovary differentiation is the sex-specific rearrangement of the germ cells. In 9 cm total length females, the germ cells group into nests and are restricted to the lateral face of the gonad, in close contact with the abdomen wall. With further development, this region invaginates and that later develops into ovigerous lamellae. Meiosis starts soon after ovary differentiation. In males, the germ cells are scattered along the elongated differentiating testis at first, and later become more restricted to the central region where the spermatogonial cysts start to develop. Somatic and germ cells are jointly involved in the cellular reorganization during gonadal differentiation, specifically when the germ cells begin to establish new associations during the development of both the germinal epithelium and stroma. |
|
Palavras-Chave: |
Fish reproduction. |
|
Thesagro: |
Ovário; Peixe; Pirarucu; Reprodução Animal. |
|
Thesaurus Nal: |
Animal ovaries; Animal reproduction; Arapaima gigas; Early development; Fish. |
|
Categoria do assunto: |
--
L Ciência Animal e Produtos de Origem Animal |
|
Marc: |
LEADER 02338naa a2200289 a 4500
001 2121576
005 2021-01-22
008 2020 bl uuuu u00u1 u #d
024 7 $a10.1002/jmor.21116$2DOI
100 1 $aAMARAL, A. da C.
245 $aMorphological characterization of pirarucu Arapaima gigas (Schinz, 1822) gonadal differentiation.$h[electronic resource]
260 $c2020
520 $aArapaima gigas is a giant air-breathing and bony tongue fish from the Amazon basin and a promising species for aquaculture. A. gigas farming industry is still not established because of the lack of information on its reproductive physiology. Reproduction in captivity cannot be manipulated or stimulated, and the identification of males and females in a broodstock is not easy. We aimed to reveal the morphological sex differentiation of pirarucu as studies involving gonad development are essential to understanding the reproductive physiology of any species. We performed histological analysis on the whole body and extracted the gonads of 150 juveniles. The first sign of ovary differentiation is the sex-specific rearrangement of the germ cells. In 9 cm total length females, the germ cells group into nests and are restricted to the lateral face of the gonad, in close contact with the abdomen wall. With further development, this region invaginates and that later develops into ovigerous lamellae. Meiosis starts soon after ovary differentiation. In males, the germ cells are scattered along the elongated differentiating testis at first, and later become more restricted to the central region where the spermatogonial cysts start to develop. Somatic and germ cells are jointly involved in the cellular reorganization during gonadal differentiation, specifically when the germ cells begin to establish new associations during the development of both the germinal epithelium and stroma.
650 $aAnimal ovaries
650 $aAnimal reproduction
650 $aArapaima gigas
650 $aEarly development
650 $aFish
650 $aOvário
650 $aPeixe
650 $aPirarucu
650 $aReprodução Animal
653 $aFish reproduction
700 1 $aLIMA, A. F.
700 1 $aKIRSCHNIK, L. N. G.
700 1 $aO'SULLIVAN, F. L. A.
773 $tJournal of Morphology$gv. 281, n. 4/5, p. 491-499, Apr./May 2020.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Pesca e Aquicultura (CNPASA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 2 | |
| 1. |  | SOUZA, L. N.; SILVEIRA, A. L.; AMARAL, D. R.; FRONZA, V.; HOLLMAN, G.; ROCHA, G. B. S. Controle da ferrugem asiática da soja com diferentes épocas de aplicação de fungicidas. In: CONGRESSO BRASILEIRO DE SOJA, 6., 2012, Cuiabá. Soja: integração nacional e desenvolvimento sustentável: resumos. Brasília, DF: Embrapa, 2012. p. 152, res. 263.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
|   |
| 2. | | SOUZA, L. N.; SILVEIRA, A. L.; AMARAL, D. R.; FRONZA, V.; HOLLMAN, G.; ROCHA, G. B. S. Controle da ferrugem asiática da soja com diferentes épocas de aplicação de fungicidas. In: CONGRESSO BRASILEIRO DE SOJA, 6., 2012, Cuiabá. Soja: integração nacional e desenvolvimento sustentável: anais. Brasília, DF: Embrapa, 2012. 4 p. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
|  |
| Registros recuperados : 2 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
