在卵性的生长过程中,生长的遗传性和发育可塑性
Fonti Kar1, Shinichi Nakagawa1,2, Daniel W A Noble3,4
1School of Biological Earth and Environmental Sciences, Ecology and Evolution Research Centre, University of New South Wales, Sydney, NSW, Australia.
Heredity
|November 15, 2023
概括
发育温度影响的生长,低温导致更高的质量. 遗传性和母体影响因年龄而异,但极端温度不会显著影响.
科学领域:
- 进化生物学是进化的生物学.
- 发展性可塑性 发展性可塑性
- 定量遗传学 是一种定量遗传学.
背景情况:
- 现型变异对于进化至关重要,受遗传变异和发育可塑性的影响.
- 发育可塑性可以改变遗传变异,但它对进化潜力的影响尚未完全理解.
- 了解温度等环境因素如何影响表型和遗传变异至关重要.
研究的目的:
- 量化发育温度对微妙皮 (Lampropholis delicata) 的生长的影响.
- 在不同的发育温度下划分表型变异,估计遗传性和母体影响.
- 评估遗传性和母性影响的年龄依赖性,以及它们与发育温度的相互作用.
主要方法:
- 利用带有基因组相关性矩阵的动物模型来划分表型变异.
- 在热冷发育温度下,在16个月的时间里测量了261个微妙的皮肤的质量.
- 估计遗传性和随着时间的推移对母体的影响,分析生长率和差异组件.
主要成果:
- 在寒冷的发育温度下养的,总体上表现出比温度高的更高的质量.
- 发育温度并没有显著影响微妙皮肤的生长速度.
- 虽然在统计学上并不显著,但在热发育温度治疗中,添加基因变异,母体效应和遗传性更高. 遗传性随着年龄的增长而增加,母体效应显示出化后的动态模式.
结论:
- 微妙的皮生长的进化潜力是复杂的,并且取决于年龄.
- 极端的自然温度似乎不会公开影响生长的进化潜力.
- 发育可塑性影响表型变异,但其对遗传变异的长期影响需要进一步研究.
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