Biodiversity of Simulium metallicum sensu lato (Diptera: Simuliidae), a complex of Neotropical vectors associated with human onchocerciasis

Adler, Peter H.; Borkent, Art; Hamada, Neusa; McCreadie, John W.

doi:10.1016/j.actatropica.2017.06.017

Cited by 1 publication

(3 citation statements)

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“…metallicum s . l ., however, have been found in sympatry with one another and confirmed as reproductively isolated species [39,41]. We suspect that, like S .…”

Section: Discussionmentioning

confidence: 83%

“…Simulium metallicum s . l ., another Latin American vector associated with onchocerciasis, consists of 17 cytoforms [39–41]. About half of the cytoforms of S .…”

Section: Discussionmentioning

confidence: 99%

“…l . includes six cytoforms implicated as vectors through their geographic association with onchocerciasis foci, whereas the remaining cytoforms have been found only in onchocerciasis-free areas [39, 41]. The pattern is repeated in S .…”

Section: Discussionmentioning

confidence: 99%

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River-specific macrogenomic diversity in Simulium guianense s. l. (Diptera: Simuliidae), a complex of tropical American vectors associated with human onchocerciasis

et al. 2017

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Simulium guianense Wise is a Latin American vector complex of black flies associated with transmission of the causal agent of human onchocerciasis (river blindness). An analysis of the chromosomal banding patterns of 607 larvae of S. guianense s. l. revealed a high level of variation involving 83 macrogenomic rearrangements across 25 populations in Brazil, French Guiana, and Venezuela. The 25 populations were assigned to 13 cytoforms (A1, A2, B1–B4, C, D, E1–E4, and F), some of which are probably valid species. Based on geographical proximity, a member of the B group of cytoforms probably represents the name-bearing type specimen of S. guianense and the primary vector in the last-remaining onchocerciasis foci in the Western Hemisphere. Cytoform B3 in Amapá State is implicated as an anthropophilic simuliid in an area currently and historically free of onchocerciasis. Distributions of cytoforms are associated with geography, elevation, and drainage basin, and are largely congruent with ecoregions. Despite extraordinarily large larval populations of S. guianense s. l. in big rivers and consequent production of female flies for dispersal, the cytoforms maintain their chromosomal distinction within individual rivers, suggesting a high degree of fidelity to the specialized breeding habitats—rocky shoals—of the natal rivers.

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“…metallicum s . l ., however, have been found in sympatry with one another and confirmed as reproductively isolated species [39,41]. We suspect that, like S .…”

Section: Discussionmentioning

confidence: 83%

“…Simulium metallicum s . l ., another Latin American vector associated with onchocerciasis, consists of 17 cytoforms [39–41]. About half of the cytoforms of S .…”

Section: Discussionmentioning

confidence: 99%