Genetic investigations of laboratory stocks of the complex of Anopheles balabacensis Baisas (Diptera: Culicidae)
Hii, JLK.
Bulletin of Entomological Research 752: 185-197
1985
ISSN/ISBN: 0007-4853 DOI: 10.1017/s0007485300014279
Accession: 015927944
Examination of the polytene chromosomes and cross-breeding data confirmed the specific status of A. dirus Peyton et Harrison within the complex of A. balabacensis Baisas. The data also strongly suggested that A. dirus itself is a complex of at least 2 spp., one of which, a hitherto unrecognized species, provisionally designated A. dirus species B, previously known as the Perlis form, occurs in northern Peninsular Malaysia. A distinct population from Thailand was designated A. dirus species A. The mosquitoes studies also include material from natural populations in Sabah Borneo , here provisionally designated A. balabacensis s.s., and may represent the 1st genetic analysis of this species. The Sabah material is distinct from either of the A. dirus forms. Hybrid males from crosses of A. balabacensis .times. A. dirus species A and of A. dirus species B females .times. A. dirus species A males were sterile. Chromosome studies also showed that reproductive isolation was accompanied by genetic changes in both the autosomes and X chromosome in the hybrid larvae.