Medical and Veterinary Entomology (2004) 18, 296-300

M. Mustapha, R.J. Post, P. Enyong and J. Lines (2004)
A new cytotype of Simulium squamosum from south-west Cameroon
Medical and Veterinary Entomology 18 (3), 296-300
Abstract: A new cytotype of Simulium squamosum Enderlein (Diptera: Simuliidae) (here named S. squamosum 'D') is described from around Mount Cameroon in south-west Cameroon on the basis of sex-chromosome differences on the short arm of chromosome I. Two polymorphic inversions, IS-To (a new inversion) and IS-2, are partially Y linked. These inversions usually occur together, although IS-To has a higher frequency and is more strongly Y linked than IS-2. This sex-chromosome system has not been previously described and the occurrence and evolution of sex-chromosome systems in S. squamosum is discussed.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Rory J. Post

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Simulium squamosum		Cameroon