Genetic Strains of Tribolium: Their Primary Characteristics

Park, Thomas; Mertz, David B.; Petrusewicz, Kazimierz

doi:10.1086/physzool.34.1.30152682

Cited by 98 publications

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“…These derived strains have maintained their characteristic productivities in most cases for 10 to 20 years. Heritable differ-ences in productivity as demonstrated by response to both natural and artificial selection have also been found in other Tribolium studies using a variety of wild type, laboratory, and synthesized strains (Park et al, 1961;Wade, 1977Wade, , 1979McCauley, 1978;see Sokoloff, 1978, for a recent review).…”

supporting

confidence: 62%

“…This stock had been synthesized in 1973, approximately 25 generations earlier, by mass mating equal numbers of young male and female adults from Park's four laboratory strains of T. castaneum (see Wade, 1977, for a more detailed description of this procedure, and Park et al, 1961, for ecological information concerning the laboratory strains). This synthetic stock was known to possess genetic variability for factors affecting the rate of population increase (Wade, 1977(Wade, , 1979.…”

Section: Methodsmentioning

confidence: 99%

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Group Selection: The Phenotypic and Genotypic Differentiation of Small Populations

1980

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The biological character or phenotype of a population is determined both by the genotypes of its component individuals and by their interaction with biotic and abiotic factors in the environment. To the extent that there are genetic differences among individuals, differences among populations may be generated by both drift and selection. In most theoretical studies, the populational phenotype is completely characterized by the genotypic or phenotypic mean and variance of its component individuals. In these cases, the population characteristic in question is simply a statistical summarization of its component parts. When this description of the relationship between individual and population phenotypes is accurate, the phenotypic differentiation of an array of populations owing to drift or selection can readily be represented by the frequency distribution of within-population means. This distribution is a complete characterization because the variance within the population in most genetic models is a function of the mean gene frequency and in most quantitative models this variance is assumed to be constant.However, laboratory studies of genotype-genotype and genotype-density interactions (Lewontin and Matsuo, 1963;Sokal and Karten, 1964;Weisbrot, 1966;McCauley and Sokal, 1977) have illustrated many instances in which the biological character or phenotype of a population is not a simple linear function of its component parts. As a result of the interactions among individuals, it is possible, at least in principle, for small genetic differences between groups of individuals to become relatively large differences in

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confidence: 62%

Section: Methodsmentioning

confidence: 99%

Group Selection: The Phenotypic and Genotypic Differentiation of Small Populations

1980

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“…A standard mixture of whole-wheat flour with powdered dry yeast in a ratio of 19: 1 (Park, 1961) was used as food medium.…”

Section: Methodsmentioning

confidence: 99%

Insecticidal activity of different fractions of petroleum ether extract of Zingiber cassumunar rhizome against Tribolium castaneum

Talukder

Haque

Zaman

et al. 2015

Bangladesh J. Sci. Ind. Res.

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An experiment was carried out to investigate the efficacy of contact toxicity of different fractions of petroleum ether extract of Zinziber cassumunar Roxb. rhizome against Tribolium castaneum. Seventy-eight different fractions of petroleum ether extract were obtained from column chromatography. Elutes having the similar TLC behavior were combined in eight fractions and were named as: MN-1, MN-2, MN-3, MN-4, MN-5, MN-6, MN-7 and MN-8. Four separate fractions were collected from the MN-1 fraction by preparative thin layer chromatography. These four parts were washed with petroleum ether, chloroform, ethyl acetate and methanol. Thereafter, these were separated by small column and designated as: M1N1, M1N2, M1N3, M1N4, M2N1, M2N2, M2N3, M2N4, M3N1, M3N2, M3N3, M3N4, M4N1 and M4N2. Fractions of M1N2, M2N2, M3N2 and M4N2 were found to be the most effective against the beetle T. castaneum after 24, 48 and 72 hours. However, some fractions exhibited the moderate effect and other fractions did not work against the beetle.Bangladesh J. Sci. Ind. Res. 50(2), 143-152, 2015

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“…In this paper I present the results of experiments designed to reveal treatment similarities and dissimilarities with respect to those "primary characteristics" (d. 1 through 4 below) and "group interactions" (d. 5 below) (Park et al, 1961) which are known to influence population size in Tribolium (cf. King and Dawson, 1972;Mertz, 1972;Sokoloff, 1974; for detailed and comprehensive reviews).…”

mentioning

confidence: 99%

“…The progeny of these 100 adults, hereafter called 5, were also assayed for each of the characters listed above. This original stock, 5, was created by mass mating 24 adults from each of Park's four laboratory strains (d. Park et al 1961;Wade, 1977). The F 3 generation of this mass mating was used to establish the treatment populations of Experiment I.…”

mentioning

confidence: 99%

THE PRIMARY CHARACTERISTICS OF TRIBOLIUM POPULATIONS GROUP SELECTED FOR INCREASED AND DECREASED POPULATION SIZE

Wade

1979

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Genetic Strains of Tribolium: Their Primary Characteristics

Cited by 98 publications

References 0 publications

Group Selection: The Phenotypic and Genotypic Differentiation of Small Populations

Group Selection: The Phenotypic and Genotypic Differentiation of Small Populations

Insecticidal activity of different fractions of petroleum ether extract of Zingiber cassumunar rhizome against Tribolium castaneum

THE PRIMARY CHARACTERISTICS OF TRIBOLIUM POPULATIONS GROUP SELECTED FOR INCREASED AND DECREASED POPULATION SIZE

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