Data/hora: 10/06/2024 07:49:39

Provedor de dados: | Genetics and Molecular Biology
País: | Brazil
Título: | Biochemical comparison of two Hypostomus populations (Siluriformes, Loricariidae) from the Atlântico Stream of the upper Paraná River basin, Brazil
Autores: | Ito,Kennya F.; Renesto,Erasmo; Zawadzki,Cláudio H.
Data: | 2009-01-01
Ano: | 2009
Palavras-chave: | Allozymes; Hypostomus nigromaculatus; Fish genetics; Genetic distance; Polymorphism.
Resumo: | Two syntopic morphotypes of the genus Hypostomus - H. nigromaculatus and H. cf. nigromaculatus (Atlântico Stream, Paraná State) - were compared through the allozyme electrophoresis technique. Twelve enzymatic systems (AAT, ADH, EST, GCDH, G3PDH, GPI, IDH, LDH, MDH, ME, PGM and SOD) were analyzed, attributing the score of 20 loci, with a total of 30 alleles. Six loci were diagnostic (Aat-2, Gcdh-1, Gpi-A, Idh-1, Ldh-A and Mdh-A), indicating the presence of interjacent reproductive isolation. The occurrence of few polymorphic loci acknowledge two morphotypes, with heterozygosity values He = 0.0291 for H. nigromaculatus and He = 0.0346 for H. cf. nigromaculatus. F IS statistics demonstrated fixation of the alleles in the two morphotypes. Genetic identity (I) and distance (D) of Nei (1978) values were I = 0.6515 and D = 0.4285. The data indicate that these two morphotypes from the Atlântico Stream belong to different species.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000100008
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/S1415-47572009000100008
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.32 n.1 2009
Fonte: | info:eu-repo/semantics/openAccess