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Updated: Jul 5, 2025

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在Drosophila中定量调整色素强度的监管进化

Katharina Bachem1, Xinyi Li1, Stefano Ceolin1

  • 1Department of Evolutionary Ecology, Ludwig-Maximilians Universität München, München 82152, Germany.

Science advances
|January 24, 2024
PubMed
概括

基因调节区域的不断演变,特别是增强剂,推动了定量形态多样化. 这项研究揭示了黄基因增强剂活性变化如何调节翼色素,促进物种变异.

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In 1928, a German botanist Emil Heitz observed the moss nuclei with a DNA binding dye. He observed that while some chromatin regions decondense and spread out in the interphase nucleus, others do not. He termed them euchromatin and heterochromatin, respectively. He proposed that the heterochromatin regions reflect a functionally inactive state of the genome. It was later confirmed that heterochromatin is transcriptionally repressed, and euchromatin is transcriptionally active chromatin.
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