Caste Differentiation
Mostrando 13-15 de 15 artigos, teses e dissertações.
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13. Differential gene expression between developing queens and workers in the honey bee, Apis mellifera
Many insects show polyphenisms, or alternative morphologies, which are based on differential gene expression rather than genetic polymorphism. Queens and workers are alternative forms of the adult female honey bee and represent one of the best known examples of insect polyphenism. Hormonal regulation of caste determination in honey bees has been studied in d
The National Academy of Sciences.
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14. Evolution of eusociality and the soldier caste in termites: Influence of intraspecific competition and accelerated inheritance
We present new hypotheses and report experimental evidence for powerful selective forces impelling the evolution of both eusociality and the soldier caste in termites. Termite ancestors likely had a nesting and developmental life history similar to that of the living family Termopsidae, in which foraging does not occur outside the host wood, and nonsoldier h
National Academy of Sciences.
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15. The Genetic Heritage of the Earliest Settlers Persists Both in Indian Tribal and Caste Populations
Two tribal groups from southern India—the Chenchus and Koyas—were analyzed for variation in mitochondrial DNA (mtDNA), the Y chromosome, and one autosomal locus and were compared with six caste groups from different parts of India, as well as with western and central Asians. In mtDNA phylogenetic analyses, the Chenchus and Koyas coalesce at Indian-specif
The American Society of Human Genetics.