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Population genetic evidence for species A, B, C and D of the Anopheles dirus complex in Thailand and enzyme electromorphs for their identification
Author(s) -
GREEN CHRISTOPHER A.,
MUNSTERMANN LEONARD E.,
TAN S. G.,
PANYIM SAKOL,
BAIMAI VISUT
Publication year - 1992
Publication title -
medical and veterinary entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.028
H-Index - 82
eISSN - 1365-2915
pISSN - 0269-283X
DOI - 10.1111/j.1365-2915.1992.tb00031.x
Subject(s) - biology , genetics , population , sensu , zoology , evolutionary biology , genus , demography , sociology
. Mixtures of chromosomal forms A, B, C and D in natural populations of Anopheles dirus Peyton & Harrison sensu lato in Thailand show significant positive values of Wright's fixation index for six enzyme‐electromorph loci. The mean value of F IS over all loci was found to be +0.28 (SD 0.02), with a range of +0.57 ( Odh ) to +0.10 ( Idh‐2 ). Partitioning electromorph data for the chromosomal forms reduces the mean F IS to 0.03 (SD 0.01), which suggests that positive assortative mating is a characteristic of each form. This supports the hypothesis that the chromosomal/electrophoretic forms A, B, C and D represent four distinct biological species within the An.dirus complex. An example is given of the use of enzyme electromorphs as a means of vector identification during a malaria entomological field study involving a mixture of An.dirus species A and D. Electromorph identifications of 323 sp. A and 161 sp. D were more than 98% correct when cross‐referenced to specific DNA probes.