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Books > Science & Mathematics > Biology, life sciences > Developmental biology
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Evolution in the Dark - Adaptation of Drosophila in the Laboratory (Paperback, 2014 ed.)
Loot Price: R1,689
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Evolution in the Dark - Adaptation of Drosophila in the Laboratory (Paperback, 2014 ed.)
Series: SpringerBriefs in Biology
Expected to ship within 10 - 15 working days
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How organisms come to possess adaptive traits is a fundamental
question for evolutionary biology. Although it is almost impossible
to demonstrate evolution in the laboratory, this issue can be
approached by using an unusual organism, Dark-fly: "Drosophila
melanogaster" kept in complete darkness for 57 years through 1,400
generations, which corresponds to 28,000 years in terms of human
generations. Has Dark-fly adapted to an environment of total
darkness? If so, what is the molecular nature of the adaptation? In
"Evolution in the Dark," the remarkable findings from the Dark-fly
project performed at Kyoto University are presented. It was found
that Dark-fly did not have poor eyesight, but rather exhibited
higher phototaxis ability and displayed lengthened bristles on the
head that function as tactile receptors. Circadian rhythms were
weakened but still retained in Dark-fly. With recent progress in
genome science enabling researchers to perform whole genome
sequencing for Dark-fly, a large number of mutations were
identified including genes encoding a light receptor, olfactory
receptors, and enzymes involved in neural development. The Dark-fly
project is a simple but very long-term experiment. Combined with
advanced techniques in genetics and genomics, it is a valuable tool
for understanding the molecular nature of adaptive evolution."
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