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Short Communication • Rev. Soc. Bras. Med. Trop. 56 • 2023 • https://doi.org/10.1590/0037-8682-0095-2022   copy

Study of karyotype and constitutive heterochromatin of Mansonia spp. (Diptera: Culicidae) in the area surrounding the Jirau Hydroelectric Dam, Rondônia, Brazil

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Background:

Mansonia mosquitoes transmit arboviruses to humans. This study describes the karyotypes and C-banding of Mansonia humeralis, Mansonia titillans, Mansonia pseudotitillans, and Mansonia indubitans.

Methods:

From the 202 larvae, the brain ganglia were dissected (n=120) for the preparation of slides. Twenty slides with well-distended chromosomes for each species (10 for karyotyping and 10 for C-banding) were selected for further study.

Results:

The haploid genome and the average lengths of the chromosomal arms differed in relation to the centromere between species, and intraspecific differences also occurred in the distribution of the C-bands.

Conclusions:

These results are useful for better understanding of the chromosomal variability of Mansonia mosquitoes.

Keywords:
Mosquito brain ganglia; Chromosomal structure; Filariasis

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