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在BaYaka狩猎采集者的苦味感知
Sarai Keestra1,2, Inez Derkx3, Edmond Sylvestre Miabangana4,5
1Department of Epidemiology and Data Science, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands.
概括
生态环境影响苦味的感知. 来自伐木城镇的BaYaka个人比来自森林营的更高的苦味敏感性,这表明早期的生活环境影响了味道表型.
科学领域:
- 人类进化生物学 人类进化生物学
- 感官生态学 感官生态学
- 人类遗传学 人类遗传学
背景情况:
- 苦味感知是一种重要的人类感官特征,具有显著的进化和生态影响.
- 了解口味感知的变化可以提供对人类适应和环境相互作用的见解.
- 以前的研究已经强调了影响苦味敏感性的遗传和环境因素.
研究的目的:
- 调查刚果共和国BaYaka狩猎采集者之间苦味感知的变化.
- 为了比较不同生态环境中长大的BaYaka个体之间的苦味表型:森林营地与伐木小镇.
- 探索生命早期生态环境对苦味感知的潜在影响.
主要方法:
- 在112个BaYaka个体中评估了苦味的表型,使用了甲胺 (PTC) 和氨酸的味道检测任务.
- 参与者根据他们的出生和成长地点进行分类:森林营地或伐木小镇.
- 使用后勤回归来分析位置,性别,年龄和苦味感知之间的关联.
主要成果:
- 与森林出生的个体相比,城市出生的BaYaka个体表现出明显更高的可能性,认为PTC和thiourea都是苦的.
- 对于苦味感知的几率比为PTC的3.93和氨酸的4.44在城市出生的与森林出生的个体中 (p <0.01两者).
- 在苦味感知与性别或年龄之间没有观察到任何显著的关联.
结论:
- 苦味的表型在城市和森林营地培养的BaYaka个人之间有很大的差异.
- 生命早期的生态环境似乎是导致苦味感知差异的一个因素.
- 假设在不同的环境中对苦植物化合物的差异暴露可能解释观察到的味道表型差异.
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