Heat tolerance, oxidative stress response tuning, and robust gene activation in early-stage Drosophila melanogaster embryos

In organisms with complex life cycles, life stages that are most susceptible to environmental stress may determine species persistence in the face of climate change. Early embryos of Drosophila melanogaster are particularly sensitive to acute heat stress, yet tropical embryos have higher heat tolerance than temperate embryos, suggesting adaptive variation in embryonic heat tolerance. These data constitute a comparison of transcriptomic responses to heat stress among tropical and temperate embryos to elucidate the gene regulatory basis of divergence in embryonic heat tolerance.

在具有复杂生活史的生物类群中，对环境胁迫最为敏感的生活阶段，或可决定物种在气候变化背景下的存续能力。黑腹果蝇（Drosophila melanogaster）的早期胚胎对急性热胁迫尤为敏感，然而热带种群的胚胎热耐受水平显著高于温带种群，这表明其胚胎热耐受能力存在适应性变异。本数据集通过对比热带与温带种群的黑腹果蝇胚胎在热胁迫下的转录组应答特征，旨在阐明胚胎热耐受能力分化的基因调控基础。