SEX AND CROSSING OVER IN TRIBOLIUM CASTANEUM

Sex and Crossing over in Linkage Group IV of TRIBOLIUM CASTANEUM.

HE formal genetics of flour beetles of the genus Tribolium is still in its infancy. Although these organisms have found a habitat in the laboratories of the ecologist, the quantitative geneticist, and more recently, the population biologist (KING and DAWSON 1972) their use has been restricted by the availability of only a limited number of reliable mutants and further hampered by a meager knowl...

Age and sex related responsiveness of Tribolium castaneum (Coleoptera: Tenebrionidae) in novel behavioral bioassays.

The hardiness and mobile nature of Tribolium castaneum (Herbst) make them easy to work with but are the same factors that make their responses to behavior-modifying chemical stimuli difficult to evaluate. To overcome these difficulties two bioassays were developed: a two-choice test with airflow and a diffusion-based test to evaluate responses to chemical stimuli. The two-choice assay is excel...

Embryonic patterning mutants of Tribolium castaneum.

The identification and analysis of genes controlling segmentation in Drosophila melanogaster has opened the way for understanding similarities and differences in mechanisms of segmentation among the insects. Homologues of Drosophila segmentation genes have been cloned and their expression patterns have been analyzed in a variety of insects, revealing that the patterns of expression of many gene...

Expanding the genetic toolkit of Tribolium castaneum

Gender- and stressor-specific microRNA expression in Tribolium castaneum

MicroRNAs (miRNAs) are small non-coding RNAs mediating post-transcriptional regulation of gene expression in eukaryotes. Addressing their role in regulation of physiological adaptations to environmental stress in insects, we selected the red flour beetle Tribolium castaneum as a model. Beetles were fed with the bacterial entomopathogen Pseudomonas entomophila (to mimic natural infection), injec...