Use este identificador para citar ou linkar para este item: https://repositorio.inpa.gov.br/handle/1/17091
Título: Taxonomy and polytene chromosomes of the Neotropical black fly Simulium perplexum (Diptera: Simuliidae)
Autor: Silva, Nayra Gomes da
Hamada, Neusa
Adler, Peter H.
Palavras-chave: Chromosome
Developmental Biology
Disease Vector
Fly
Growth Rate
Larva
Morphology
Taxonomy
Chromosome Analysis
Chromosome Arm
Chromosome Nor
Controlled Study
Imago
Larva
Neotropics
Nonhuman
Polytene Chromosome
Pupa
Simulium
Simulium Guianense
Simulium Hirtipupa
Simulium Litobranchium
Simulium Perplexum
Species Comparison
Taxonomy
Animals
Classification
Genetics
Guyana
Polytene Chromosome
Simuliidae
Venezuela
Diptera
Hexapoda
Simuliidae
Simulium Guianense
Simulium Hirtipupa
Simulium Nigricoxum
Animal
Guyana
Larva
Polytene Chromosomes
Pupa
Simuliidae
Data do documento: 2017
Revista: Acta Tropica
É parte de: Volume 171, Pags. 101-113
Abstract: Simulium perplexum Shelley, Maia-Herzog, Luna Dias & Couch is structurally similar in the pupal stage to Simulium guianense Wise, the main vector in the onchocerciasis foci of Amazonian Brazil and Venezuela. We report S. perplexum for the first time beyond its type locality (Guyana, Potaro River), describe its larva, redescribe its pupa, and provide a chromosomal comparison with S. guianense and other morphologically similar species. We collected it in two rivers in Rurópolis municipality, Pará state, Brazil. The larvae can be distinguished from those of related species by having body cuticle with microscopic, translucent, and lanceolate setae. Chromosomal comparisons of S. perplexum and similar Brazilian species with available chromosome information (S. guianense, S. hirtipupa Lutz, and S. litobranchium Hamada, Pepinelli, Mattos-Glória & Luz), using S. guianense Cytoform A as the standard, show that S. perplexum has the nucleolar organizer uniquely in the middle of the short arm of chromosome I, whereas the other three species have this marker at the base of the long arm of chromosome I. All chromosome arms, except IIS and IIIS, of S. perplexum are rearranged, compared with S. guianense Cytoform A, suggesting that it is not closely related to this species or to S. litobranchium, as suggested by some authors, based on morphological features. © 2017 Elsevier B.V.
DOI: 10.1016/j.actatropica.2017.03.024
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