化学感知组织和细胞在生态多样化的多类动物中演变
Gwénaëlle Bontonou1,2, Bastien Saint-Leandre3,4, Tane Kafle5,6
1Department of Ecology & Evolution, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland. gwenaelle.bontonou@unil.ch.
Nature communications
|February 5, 2024
概括
果化学感知组织的进化变化显示了物种和细胞类型之间广泛的基因表达转移. 这些多样化的表达模式,包括新的化疗受体,为感官器官的进化提供了洞察力.
科学领域:
- 进化生物学是进化的生物学.
- 基因组学就是基因组学.
- 神经科学是一个神经科学.
背景情况:
- 化学感知组织显示了大量的物种间变异.
- 这些组织中基因表达和细胞类型多样性的进化驱动因素尚未得到充分理解.
研究的目的:
- 研究Drosophila物种中化学传感组织中的基因表达和细胞类型的进化.
- 识别基因表达进化的模式及其与细胞类型特异性和进化史的关系.
主要方法:
- 来自六种多索菲拉菌种的五种化学感知组织的转录组分析.
- 转录组数据与单细胞数据集的整合.
- 对基因表达变化,选择压力和细胞类型特异性的分析.
主要成果:
- 稳定选择是塑造化学感应转录组的主导力量,但成千上万的基因表现出进化的表达差异.
- 在一个组织中表达变化的基因往往会在其他组织中表现出变化,进化的时间变化和细胞类型特异性的增加.
- 化学感知基因表现出广泛的表达变化,包括特定物种的收益/损失和化学受体的新表达模式.
- 在基因表达中观察到普遍的性别差异,在Drosophila melanogaster前腿的感觉和肌肉细胞中明显过多的男性偏差表达.
结论:
- 这项研究为全球和基因特定层面的化学传感组织的进化动态提供了新的见解.
- 广泛的基因表达进化,包括细胞类型的特定变化和新型的化学受体模式,对化学感知多样性作出了重大贡献.
- 性别特定的表达模式代表了化学传感系统中的另一个进化适应层.
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