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德洛索菲拉 (Drosophila melanogaster) 颜色表现出在多个时空尺度上的适应性表型平行性

Skyler Berardi¹, Jessica A Rhodes², Mary Catherine Berner¹

¹Department of Biology, University of Pennsylvania, Philadelphia, PA, United States.

Evolution letters

|September 22, 2025

概括

果迅速适应其色素的环境变化,在不同的气候轴发生明显的遗传变化. 这种并行的进化突显了自然种群的适应性背后的灵活基因架构.

科学领域:

进化生物学是进化的生物学.
人口遗传学人口遗传学
定量遗传学是一个量子遗传学.

背景情况:

生物通过适应性跟踪适应环境变化.
复杂特征快速适应的遗传基础和可重复性尚未完全理解.

研究的目的:

通过使用Drosophila melanogaster的腹部色素来研究快速适应的性质,遗传结构和可重复性.
确定并行表型进化是否与跨越环境梯度的独特遗传组件有关.

主要方法:

研究了北美度和季节的Drosophila melanogaster的自然种群.
实验进化复制的种群在受控的领域中等宇宙.
分析了与表型差异化相关的色素相关位点的等位基频率变化.

主要成果:

德洛索菲拉黑虫的色素表现出平行和决定性的进化,以应对环境变化.
在实验种群中,颜色的快速适应发生在15代内.
现型变化与特定的色素相关位置的等位基频率转移相关,在空间和时间尺度上涉及不同的位置.

结论:

平行表型进化是由多基因架构的独特的,对环境有反应的组件驱动的.
多虫色素化为理解快速适应的可重复的遗传机制提供了一个模型.
适应性跟踪涉及跨环境轴的基因表达和等位基因频率的灵活转变.

关键词:

适应适应适应适应进化基因组学的进化基因组学.昆虫昆虫是一种昆虫.平行进化的平行演化.

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