Description and characterization of the melanic morphotype of Rhodnius nasutus Stål, 1859 (Hemiptera: Reduviidae: Triatominae)

Introduction For the first time we provide the description of the melanic (dark) morphotype of Rhodnius nasutus and determine the pattern of genetic inheritance for this characteristic. Methods Dark morph R. nasutus specimens were crossbred with standard (typically patterned) R. nasutus. Results We...

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Bibliographic Details
Published in:Revista da Sociedade Brasileira de Medicina Tropical 2014-09, Vol.47 (5), p.637
Main Authors: Fernando, Braga Stehling Dias, Jaramillo-O, Nicolás, Diotaiuti, Liléia
Format: Article
Language:English
Subjects:
Genotype & phenotype
Heredity
Heterogeneity
Morphology
Parasitic diseases
Phenotypic variations
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Summary:Introduction For the first time we provide the description of the melanic (dark) morphotype of Rhodnius nasutus and determine the pattern of genetic inheritance for this characteristic. Methods Dark morph R. nasutus specimens were crossbred with standard (typically patterned) R. nasutus. Results We present the first occurrence of the melanic morphotype in the genus Rhodnius. The crossbreeding results demonstrate that the inheritance pattern of this characteristic follows Mendel's simple laws of segregation and an independent assortment of alleles. Conclusions Phenotypic variation of R. nasutus reinforces the heterogeneity found in the Triatominae. Descriptions of new species in this subfamily require rigorous validation criteria.
ISSN:0037-8682
1678-9849
DOI:10.1590/0037-8682-0007-201