Sex chromosome variation and cytotaxonomy of the onchocerciasis vector Simulium squamosum in Cameroon and Nigeria.
M Traore-Lamizana;
S Somiari;
HB Mafuyai;
CG Vajime;
RJ Post;
(2001)
Sex chromosome variation and cytotaxonomy of the onchocerciasis vector Simulium squamosum in Cameroon and Nigeria.
Medical and veterinary entomology, 15 (2).
pp. 219-223.
ISSN 0269-283X
DOI: 10.1046/j.0269-283x.2001.00300.x
On the basis of sex chromosome variation, three cytotypes of Simulium squamosum (Enderlein) (Diptera: Simuliidae) are described from Cameroon and Nigeria. Simulium squamosum A is the typical form as originally described by Vajime & Dunbar (1975) with chromosome I as the sex chromosome. It occurs throughout most of Cameroon and south-east Nigeria. A second cytotype, S. squamosum B, is described from the river Sanaga (Cameroon). It also has chromosome I as the sex chromosome, but the nature of the sex differential region is different. Simulium squamosum C has no sex-linked chromosomal rearrangements. It is widespread in Nigeria and occurs near Mount Cameroon, where it seems to hybridize with S. squamosum A.
| Item Type | Article |
|---|---|
| Keywords | Animals, Cameroon, Female, Karyotyping, Male, Nigeria, Research Support, Non-U.S. Gov't, Sex Chromosomes, Simuliidae, Variation (Genetics), Animals, Cameroon, Female, Karyotyping, Male, Nigeria, Research Support, Non-U.S. Gov't, Sex Chromosomes, genetics, ultrastructure, Simuliidae, classification, genetics, Variation (Genetics), genetics |
| ISI | 169497200016 |