کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5671168 1592753 2017 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Taxonomy and polytene chromosomes of the Neotropical black fly Simulium perplexum (Diptera: Simuliidae)
موضوعات مرتبط
علوم زیستی و بیوفناوری ایمنی شناسی و میکروب شناسی انگل شناسی
پیش نمایش صفحه اول مقاله
Taxonomy and polytene chromosomes of the Neotropical black fly Simulium perplexum (Diptera: Simuliidae)
چکیده انگلیسی


- Simulium perplexum is recorded for the first time beyond its type locality.
- Pupal morphology is similar to that of the onchocerciasis vector in Amazonia.
- The first description of the larva of Simulium perplexum is given.
- Chromosomes indicate that S. perplexum is not the closest relative of S. guianense.

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.

Simulium perplexum is reported for the first time beyond its type locality, its larva and pupa are described and redescribed, respectively, and the chromosomes of morphologically similar species are compared.106

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Tropica - Volume 171, July 2017, Pages 101-113
نویسندگان
, , ,