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Reduced insulin/IGF signaling extends lifespan in diverse species, including Drosophila melanogaster where the genome encodes seven insulin‐like peptides (dilp1‐7). Of these, reduced dilp2 expressed in the brain has been associated with longevity assurance when over‐expression of dfoxo in fat bodies extends lifespan. Here, we show that the insulin‐regulated transcription factor dFOXO positively modulates...
Quantitative trait locus (QTL) mapping provides a means to discover and roughly position regions of the genome that harbor genes responsible for natural variation in a complex trait. QTL mapping has been utilized extensively in the pursuit of genes contributing to longevity, chiefly in two animal models, the nematode Caenorhabditis elegans and the dipteran insect Drosophila melanogaster. Research...
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