✦ LIBER ✦

Esterases in the mosquitoCulex pipiens pipiensL.: Formal genetics and polymorphism of adult esterases

✍ Scribed by Eric Stordeur

Publisher: Springer
Year: 1976
Tongue: English
Weight: 590 KB
Volume: 14
Category: Article
ISSN: 0006-2928
DOI: 10.1007/bf00486128

No coin nor oath required. For personal study only.

✦ Synopsis

The genetics of two esterase loci active in autogenous adults of the mosquito Culex pipiens pipiens L. has been studied by means of starch gel electrophoresis. Three alleles at the Est-1 locus and eight at the Est-2 locus are described. Both loci have a null allele. Active alleles are codominant and there is no hybrid enzyme in heterozygotes. The Est-1 locus codes esterases preferentially hydrolyzing alpha-naphthylacetate and the Est-2 locus esterases preferentially hydrolyzing beta-naphthylacetate. Strains homozygous for both loci were selected. Linkage studies of the two loci have shown that they are not sex linked but are linked to each other, the crossover frequency being 8.6%. The polymorphism of two laboratory and two natural populations is described for both loci. Phenotypic distributions are in good agreement with Hardy-Weinberg expectations.

📜 SIMILAR VOLUMES

Esterases of laboratory-reared and field

Esterases of laboratory-reared and field-collected cotton boll weevils,Anthonomus grandisBoh.: Polymorphism of adult esterases and formal genetics of esterase II

✍ Charles J. Biggers; Harold R. Bancroft 📂 Article 📅 1977 🏛 Springer 🌐 English ⚖ 320 KB

The esterases of the cotton boll weevil were separated by polyacrylamide gel electrophoresis into four major regions. These were named Est I-IV in order of migration from anode to origin. Polymorphism was observed in all regions. The Est II region was shown to consist of no more than two bands (fast

Serum esterase genetics in rabbits. II.

Serum esterase genetics in rabbits. II. Genetic analysis of the prealbumin esterase system, including atropinesterase and cocainesterase polymorphism

✍ L. F. M. Zutphen 📂 Article 📅 1974 🏛 Springer 🌐 English ⚖ 675 KB

The zymotypic variation of rabbit prealbumin esterases is controlled by three autosomal loci, each with two alleles: Est-1 s and Est-1 s, Est-2 v and Est-2 f', Est-3 D and Est-3 d. Est-1 s gives rise to the three S zones possessing the cocainesterase activity, Est-2 v to the three F zones with atrop

Genetics of two tissue esterase polymorp

Genetics of two tissue esterase polymorphisms (Est-4 and Est-5) in the rabbit

✍ L. F. M. Zutphen; R. R. Fox; M. G. C. W. Bieman 📂 Article 📅 1983 🏛 Springer 🌐 English ⚖ 387 KB

Genetics of a tissue esterase polymorphi

Genetics of a tissue esterase polymorphism (Est-6) in the rabbit (Oryctolagus cuniculus)

✍ L. F. M. Zutphen; M. G. C. Bieman; O. Deimling; R. R. Fox 📂 Article 📅 1987 🏛 Springer 🌐 English ⚖ 427 KB

Serum esterase genetics in rabbits. I. P

Serum esterase genetics in rabbits. I. Phenotypic variation of the prealbumin esterases and classification of atropinesterase and cocainesterase

✍ L. F. M. Zutphen 📂 Article 📅 1974 🏛 Springer 🌐 English ⚖ 833 KB

Rabbit atropinesterase and cocainesterase were studied by starch gel electrophoresis. The enzymes are localized in a region of the gels anodal to the albumins (prealbumin esterases). In this region, three groups of esterase zones ( S, F, and D) can be distinguished. The S and F zones are almost excl

Genetic control of leucine aminopeptidas

Genetic control of leucine aminopeptidase and esterase isozymes in the interspecific crossCucurbita ecuadorensisxC. maxima

✍ J. R. Wall; Thomas W. Whitaker 📂 Article 📅 1971 🏛 Springer 🌐 English ⚖ 425 KB

Starch gel electrophoretic analyses of crude seed extracts of Cucurbita ecuadorensis, C. maxima, their F1 and F2, and three of the four possible interspecific backcrosses reveal that the genus is polymorphie for alpha-naphthyl acetate esterases (Est) and leucine aminopeptidase (LAP). The two electro