Isoenzymatic polymorphisms in urban populations of Drosophila willistoni

• Autor(a) principal: Saavedra, Carmen Carolina Romero
• Data de Publicação: 2001
• Outros Autores: Napp, Marly, Reguly, Maria Luiza, Gaiesky, Vera Lúcia da Silva Valente
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UFRGS
• Texto Completo: http://hdl.handle.net/10183/207135
• topic: Drosophila willistoni; Polimorfismo; Urban populations; Isoenzymes; Poblaciones urbanas,; Isoenzimas

Natural populations of Drosophila willistoni collected both in urban sites and in the wild, as control, were analysed with respect to their isoenzyme polymorphisms in six loci of enzyme systems, through horizontal electrophoresis. The first poo1 of populations was collected and analysed during the years 1987 and 1988, and the other during 1992 and 1993, in comparable seasons. The levei of enzymatic polymorphism first detected was smaller in comparison to that observed four years !ater, suggesting an increase of variability along the time elapsed since the first sampling of this species, in the city o f Porto Alegre. Our findings are suggestive o f an increasing adjustment o f the species to this new environment.