在克隆掠夺性中,护理人员对幼的条件间接遗传影响
Patrick K Piekarski1, Stephany Valdés-Rodríguez1,2, Daniel J C Kronauer1,2
1Laboratory of Social Evolution and Behavior, The Rockefeller University, New York, NY 10065, USA.
概括
照顾者基因通过间接遗传效应 (IGE) 显著影响后代的发育和生存. 这些影响进一步受到环境因素的改变,表明IGEs是条件依赖的.
科学领域:
- 进化生物学 进化生物学
- 行为生态学 行为生态学
- 遗传学 是一个遗传学.
背景情况:
- 后代的特征受到护理者基因通过间接遗传效应 (IGEs) 的影响.
- 除了社会伙伴基因型之外,环境因素在调节IGE中的作用尚未完全理解.
- 基因间表观学描述了社会伙伴之间的基因相互作用.
研究的目的:
- 为了研究护理者基因型如何影响克隆掠夺性,Ooceraea biroi*的繁殖表型.
- 为了确定间接遗传影响 (IGEs) 是否取决于护理人员的年龄和数量.
主要方法:
- 使用了四个Ooceraea biroi的克隆线来建立具有不同护理者基因型的殖民地.
- 实验控制的照顾者基因型,年龄和数量以及繁殖特征.
- 测量了殖民地的食活动,并评估了IGEs的繁殖发育,生存,体型和种姓命运.
主要成果:
- 照顾者基因型显著影响了殖民地养和食活动.
- 照顾者基因型影响了幼的发育率,生存率,身体大小和种姓决定.
- 照顾者基因型与其他因素 (年龄,数量) 相互作用,以调节幼的发育和生存,证实有条件的IGEs.
结论:
- 展示了间接遗传效应 (IGEs) 被环境因素所调节的经验证据,这些因素超出了基因间表观.
- 强调护理者/家长的IGE可以通过除后代/品种基因型之外的其他因素来改变.
- 提供了一个理解复杂的亲子相互作用在塑造表型的框架.
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