Genetic linkage relationships of eight enzyme/electromorph loci in Anopheles minimus |
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| Authors: | S Thanaphum C A Green V Baimai R F Gass J B Gingrich |
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| Institution: | (1) Department of Biology, Faculty of Science, Mahidol University, Rama VI Road, 10400 Bangkok, Thailand;(2) Present address: Department of Genetics, Biomedical Sciences Building, University of Hawaii, 1960 East-West Road, 96822 Honolulu, HI, U.S.A.;(3) Department of Entomology, Faculty of Tropical Medicine, Mahidol University, Rajvithi Road, 10400 Bangkok, Thailand;(4) Department of Entomology, U. S. Medical Component, Armed Forces Research Institute of Medical Sciences (AFRIMS), APO, 96346-5000 San Francisco, CA, U.S.A. |
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| Abstract: | Two laboratory stocks of Anopheles minimus, each fixed for variant electromorphs of esterases, aspartate aminotransferase, hydroxyacid dehydrogenase, phosphogluconate dehydrogenase, mannose phosphate isomerase and glycerol dehydrogenase were used to assess linkage relationships between presumed gene loci controlling this variation. The two F1, which had been obtained from crossing the stocks, were backcrossed to a parental stock. Three loci controlled the esterases and one locus each of the other enzymes. Mpi is sex-linked. The rest are autosomal and suggested relationships are: Pgd 2.3% recombination from Aat and unlinked to any other loci; Est-1-33.8%-Est-3-31.5%-Est-2-21.0%-Had. Gcd is unlinked to any other locus.There was evidence of strong interaction between the X chromosome of one stock and autosomes of the other in which individuals bearing the X chromosome of the one suffered relatively greater mortality and had delayed development with respect to other genotypic classes. |
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