PMID: 11931029Apr 5, 2002Paper

Cytogenetics of laboratory colonies of simulium vittatum cytospecies IS-7 (Diptera: Simuliidae)

Journal of Medical Entomology
Charles L Brockhouse, Peter H Adler

Abstract

Laboratory colonies of the black fly Simulium vittatum Zetterstedt cytospecies IS-7 were analyzed cytogenetically and compared with the original New York population from which source material was collected 18 yr earlier. All sex chromosomes and major autosomal polymorphisms that were present in the source population were still represented in the laboratory colonies. However, the extent of sex linkage and the frequencies of four of the five major autosomal inversions changed significantly in at least one colony, perhaps because of bottlenecks experienced by the colony. A complete absence of males homozygous for the IS-7 inversion in both field and colony material is explained by postulating that the Y2 chromosome, representing the inverted condition for the IS-7 sequence, is absent from the population or acts as a rare reproductive lethal. This example possibly represents pseudo-partial sex linkage involving the X-linked sequences.

Citations

Jan 27, 2009·Journal of Proteome Research·John F AndersenJosé M C Ribeiro
Jul 14, 2010·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Peter H AdlerRory J Post
Feb 8, 2008·Rapid Communications in Mass Spectrometry : RCM·Jay P OvermyerAaron T Fisk
Dec 21, 2005·Journal of Medical Entomology·William ProcunierEddie W Cupp
Jun 15, 2007·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·Jay P OvermyerMarsha C Black

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