[Esterase patterns in Culex (C.) quinquefasciatus Say, 1823, and its relation to malathion organophosphate insecticide resistance].
This paper describes the esterase patterns found in a wild strain of Culex quinquefasciatus which was known to bear resistance genes and the existence of genetic polymorphism for such esterases is demonstrated. The most frequent polymorphisms found were Est-1, Est-2, and Est-3; Est-2 was possibly responsible for Culex quinquefasciatus resistance. The frequency of potentially resistant females was significantly higher as compared to males: in addition, the hypothesis was proposed that heterozygotie Est-3 is selected as a genotype which may contribute to resistance in neotropical areas.
Instituto de Medicina Tropical Pedro Kouri.
J
J
Bisset Lazcano
V
V
Berovides
M M
MM
Rodríguez Coto
C
C
Díaz Pantoja
D000818:Animals; D003465:Culex / Q000187:drug effects / Q000201:enzymology*; D004950:Esterases / Q000235:genetics / Q000378:metabolism*; D005260:Female; D005838:Genotype; D007305:Insecticide Resistance; D007306:Insecticides / Q000494:pharmacology*; D007527:Isoenzymes / Q000235:genetics / Q000378:metabolism; D008294:Malathion / Q000494:pharmacology*; D011110:Polymorphism, Genetic
D007306:Insecticides; D007527:Isoenzymes; D004950:Esterases; D008294:Malathion
Patrones de esterasas en Culex (C.) quinquefasciatus Say, 1823, y su relación con la resistencia al insecticida organofosforado malatión.