| [genetic diversity of isoenzyme in culex pipiens complex field populations sampling from distinct area of china]. | eight field populations of culex pipiens complex collected from five provinces (guangdong, henan, shandong, beijing and yunnan) in 2001 were used to study genetic diversity by starch gel electrophoresis. data from seven loci (me,mdh-1,mdh-2,mdh-3,gpd,est-2,est-3) of four isozymes were analyzed by software biosys2.0 and fstat(version 2.9.3). the results were as follows: (1) the values of he (from 0.098 to 0.41) indicated genetic variabilities of different degree in populations.(2)the low level of ... | 2004 | 15639982 |
| identification and characterization of novel organophosphate detoxifying esterase alleles in the guangzhou area of china. | in the mosquito culex pipiens, various alleles at the ester locus provide insecticide resistance. these resistance alleles display a heterogeneous geographical distribution, particularly in china, where they are highly diverse. a new resistance allele, ester9, coding for the overproduced esterases a9 and b9, is characterized and compared to the known resistant allele ester8 isolated from the same southern china sample (from guangzhou). both alleles provide low but significant resistance to chlor ... | 2001 | 11804460 |