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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 1 to 10 of 97 (0.254 seconds)Spelling suggestions: "subject:"tribologi"" "subject:"tribologia""
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The genetic control of riboflavin in Tribolium confusumWeber, Joseph January 1966 (has links)
The identity of a yellow fluorescent substance isolated from Tribolium confusum, with riboflavin was shown by the independent methods of spectrophotometry, chromatography and electrophoresis. Two decomposition products of riboflavin as well as two conjugated flavines FMN and FAD, were identified. The genetic control of riboflavin and its relationship to some mutant eye color genes in the pleiotropic hierarchy of gene effects was investigated in a series of experiments involving more than 8000 Tribolium from 11 genetically different lines. All developmental stages of individuals homozygous for a recessive pearl eye color gene, p[superscript: r] (formerly called p, but renamed) were associated with a significant, heritable reduction in riboflavin content in the body. This reduction was principally in the Malpighian tubules. In all of the other lines tested the vitamin was accumulated in the tubules in relatively high concentrations. The normal allele of this gene was found to be incompletely dominant with respect to the riboflavin phene. Changing the residual genotype of p[superscript: r] by means of two generations of recurrent selection did not detectably alter its expression. Two alleles of pearl (p and p[superscript: s]) were phenotypically identical to p[superscript: r], except at the level of
the riboflavin phene. Crosses of these alleles with
p[superscript: r]were shown to complement. Genetic differences in
riboflavin content and the pigmentation of Malpighian
tubules were shown. Individuals of the pearl phenotype (p[superscript: r], p, p[superscript: s]) always had colorless Malpighian tubules. Sexual dimorphism for riboflavin content was observed in all lines tested. The quantitative parameters of variation of the riboflavin phene were examined and its heritability was found to be high by two different comparisons. / Land and Food Systems, Faculty of / Graduate
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| 2 |
Keimbahntransformation mit universellem Marker und neue homöotische Gene in Tribolium castaneumBerghammer, Andreas J. January 2003 (has links) (PDF)
München, Univ., Diss., 2004. / Computerdatei im Fernzugriff.
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| 3 |
The effect of sex and irradiation on crossing-over in Tribolium castaneumFaustini, Daryl 01 January 1976 (has links)
No description available.
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| 4 |
Linkage studies in Tribolium confusum Duval (Coleoptera, Tenebrionidae)Edongali, Halluma Mohamed 01 January 1980 (has links)
No description available.
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| 5 |
Contributions to the genetics of Tribolium (Coleoptera: Tenebrionidae)Brownlee, Aaron 01 January 1984 (has links)
No description available.
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| 6 |
Effects of irradiation on black antennapedia mutants of Trilobium castaneumYamada, Ellen K. 01 January 1978 (has links)
No description available.
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| 7 |
Chemical ecology of Tribolium castaneum Herbst (Coleoptera: Tenebrionidae) : factors affecting biology and application of pheromoneHussain, Aftab 06 December 1993 (has links)
Graduation date: 1994
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| 8 |
Estimation of causal components of phenotypic variance for pupa weight in tribolium.Tanny, Rosalie Binnie January 1970 (has links)
No description available.
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| 9 |
Sperm precedence in a flour beetle /Bloch Qazi, Margaret Caldwell. January 1999 (has links)
Thesis (Ph.D.)--Tufts University, 1999. / Adviser: Sara M. Lewis. Submitted to the Dept. of Biology. Includes bibliographical references (leaves 155-171). Access restricted to members of the Tufts University community. Also available via the World Wide Web;
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| 10 |
Analyse der Oogenese und Insertionsmutagenese in Tribolium castaneumTrauner, Jochen January 2009 (has links)
Erlangen-Nürnberg, Univ., Diss., 2009.
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