Chromosome homogeneity in populations of Triatoma brasiliensis Neiva 1911 (Hemiptera - Reduviidae - Triatominae)

Cadernos de Saúde Pública

Francisco Panzera²  Ruben Pérez²  Paula Nicolini²  Sonia Hornos²  Jane Costa¹  Érika Borges¹  Liléia Diotaiuti¹  Christopher J. Schofield¹ 

[1] ,Facultad de Ciencias Sección Genética Evolutiva Montevideo,Uruguay

关键词: Chagas Disease;    Triatominae;    Triatoma brasiliensis;    Cytogenetics;    Karyotyping;    Doença de Chagas;    Triatominae;    Triatoma brasiliensis;    Citogenética;    Cariotipagem;   

DOI  :  10.1590/S0102-311X2000000800009

来源: SciELO

【 摘 要 】

Triatoma brasiliensis is the most important vector of Chagas disease in the semiarid zone of the Northeast of Brazil. Several authors have reported the occurrence of four chromatic patterns with morphological, ecological, and genetic differences. In order to determine the existence of cytogenetic differentiation between these chromatic forms, we analyzed their karyotypes and the chromosome behavior during the male meiotic process. Triatoma brasiliensis shows distinct and specific chromosome characteristics, which differ from those observed in all other triatomine species. However, no cytogenetic differences were observed between the four chromatic forms of T. brasiliensis. The lack of chromosome differentiation among them could indicate that the populations of this species are in a process of differentiation that does not involve their chromosomal organization.

【 授权许可】

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