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	Provedor de dados 65 (1) 76 (1) Autor Azevedo,Marco A. (1) Paganella,Marcelo Broilo (1) Pozzobon,Marisa Toniolo (1) Santos,Sileuza dos (1) Valls,José Francisco Montenegro (1) Palavra-chave Mode of reproduction (2) Fecundity (1) Insemination (1) Neotropical (1) Ploidy level (1) Reproductive period (1) Seasonality (1) Type of spawning (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2013 (1) 2010 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Reproductive characteristics of characid fish species (Teleostei, Characiformes) and their relationship with body size and phylogeny 76 Azevedo,Marco A.. In this study, I investigated the reproductive biology of fish species from the family Characidae of the order Characiformes. I also investigated the relationship between reproductive biology and body weight and interpreted this relationship in a phylogenetic context. The results of the present study contribute to the understanding of the evolution of the reproductive strategies present in the species of this family. Most larger characid species and other characiforms exhibit a reproductive pattern that is generally characterized by a short seasonal reproductive period that lasts one to three months, between September and April. This is accompanied by total spawning, an extremely high fecundity, and, in many species, a reproductive migration. Many species... Tipo: Info:eu-repo/semantics/article Palavras-chave: Neotropical; Reproductive period; Seasonality; Fecundity; Type of spawning; Mode of reproduction; Insemination. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212010000400020 Cytological and reproductive aspects in the Caespitosa group of Paspalum 65 Pozzobon,Marisa Toniolo; Paganella,Marcelo Broilo; Santos,Sileuza dos; Valls,José Francisco Montenegro. Somatic chromosome numbers are reported for thirty four germplasm accessions of Paspalum, Caespitosa group, representing five different species. All five species have shown x=10 as the basic chromosome number. The diploid 2n=20 chromosome number was confirmed for P. chacoense and P. indecorum, as well as sexuality for the latter. This is the first report of the chromosome number and cytological behavior for P. ligulare (2n=20 and 40), P. pleostachyum (2n=20, 30 and 40) and P. redondense (2n=20 and 40). The present results document regular meiosis in diploid accessions, with primarily bivalent pairing at diakinesis and metaphase I. Polyploids of these species had irregular meiosis, with univalent, trivalent, and quadrivalent chromosome associations. Diploid... Tipo: Info:eu-repo/semantics/article Palavras-chave: Mode of reproduction; Ploidy level. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013001100014 Registros recuperados: 2 Primeira ... 1 ... Última

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