2014
DOI: 10.1590/0037-8682-0007-2014
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Description and characterization of the melanic morphotype of Rhodnius nasutus Stål, 1859 (Hemiptera: Reduviidae: Triatominae)

Abstract: Introduction:For the fi rst 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 fi rst 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… Show more

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Cited by 12 publications
(5 citation statements)
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“…Events of natural hybridization have been reported for the Rhodniini tribe (for the genus Rhodnius specifically) [ 18 ]. Information gained from hybridization studies can further our understanding of the taxonomy and systematics of species, and be used to analyze the isolating mechanisms that limit gene flow between species, and experimental crosses can be employed to establish the role of natural hybridization in generating new genetic variants (that may lead to adaptive evolution and/or in founding new evolutionary lineages) [ 19 , 20 ].…”
Section: Introductionmentioning
confidence: 99%
“…Events of natural hybridization have been reported for the Rhodniini tribe (for the genus Rhodnius specifically) [ 18 ]. Information gained from hybridization studies can further our understanding of the taxonomy and systematics of species, and be used to analyze the isolating mechanisms that limit gene flow between species, and experimental crosses can be employed to establish the role of natural hybridization in generating new genetic variants (that may lead to adaptive evolution and/or in founding new evolutionary lineages) [ 19 , 20 ].…”
Section: Introductionmentioning
confidence: 99%
“…Many species in the Triatominae may be recognized thanks to their color patterns. In the case of P. chinai and P. howardi, the color difference could suggest the existence of dark or melanic forms as already observed within some other species, such as T. infestans [100], R. stali [26] and R. nasutus [101]. Such melanization is not necessarily suggestive of distinct species [29,102].…”
Section: Discussionmentioning
confidence: 72%
“…On the other hand, even if the integrative taxonomy provides more robustness in the characterization of the new taxa (decreasing the chance of synonymization), does not prevent this event can occur (as mentioned above for R. taquarussuensis which has been synonymous with R. neglectus Lent, 1954 [19]). Although morphological, morphometric, and cytogenetic intraspecific variation had been described in the genus Rhodnius [157,158], the description of R. taquarussuensis was based on these factors [20]. Thus, synonymization event occurred through phylogenetic analyses and experimental crosses [19].…”
Section: Integrative Taxonomymentioning
confidence: 99%