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Origin of Polyploidy in Parthenogenetic Weevils
Abstract Parthenogenesis and, in particular, polyploidy are rare in animals. A number of cases are known among weevils. Previous models have assumed that parthenogenesis originated in a diploid… Expand
Clone Diversity in the Polyploid Weevil Otiorhynchus Scaber
Parthenogenetic insects are in general polyploid. These polyploid parthenogenetic forms seem to be superior competitors compared to their diploid and sexual relatives. Numerous studies have shown a… Expand
Anopheles (Diptera: Culicidae) and malaria in Northern Europe, with special reference to Sweden.
Based on classical egg-morphology studies and enzyme electrophoresis of adult females, the geographic distributions in Sweden of 4 species in the Anopheles maculipennis complex were investigated.… Expand
Anopheles Maculipennis Complex (Diptera: Culicidae) in Northern Europe: Species Diagnosis by Egg Structure and Enzyme Polymorphism
About 800 adult mosquitoes of the Anopheles maculipennis complex were collected in Finland. Their identity was ascertained by studying the adults with enzyme electrophoresis. Eggs were studied with… Expand
Evolution of Parthenogenetic Insects
Even though fertilization is one of the basic processes of life, many organisms reproduce without a union of gamete nuclei. In parthenogenesis the egg cell develops into a new individual without… Expand
Genetic polymorphism and evolution in parthenogenetic animals. II. Diploid and polyploid Solenobia triquetrella (Lepidoptera: Psychidae).
Genic polymorphism at sixteen enzyme loci of four different chromosomal races of Solenobia triquetrella (bisexual, two diploid parthenogenetic races and tetraploid parthenogentiic) has been studied… Expand
Genetic polymorphism and evolution in parthenogenetic animals. VI. Diploid and triploid Polydrosus mollis (Coleoptera: Curculionidae).
Indices of Community Structure in Bird Censuses Based on a Single Visit: Effect of Variation in Species Efficiency
Genetic polymorphism and evolution in parthenogenetic animals. IV. Triploid Otiorrhynchus salicis Ström (Coleoptera: Curculionidae)
The genetic variability at 20 enzyme loci in natural populations of Otiorrhynchus salicis Strom was studied by starch gel electrophoresis. Altogether 135 weevils were analyzed. The samples originated… Expand