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在多态的雌性费罗蒙信号和雄性响应中,形态相关的变异
Chiara De Pasqual1, Eetu Selenius1, Emily Burdfield-Steel2
1Organismal and Evolutionary Biology Research Program, University of Helsinki, Helsinki, Finland.
The Journal of animal ecology
|September 19, 2024
概括
森林虎 (Arctia plantaginis) 的遗传变异是由复杂的相互作用维持的. 女性的吸引力和男性的搜索行为因颜色基因型和环境因素而异,影响生殖成功.
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 遗传学 是一个
背景情况:
- 生殖策略中的遗传变异对于物种的生存至关重要.
- 森林虎 (Arctia plantaginis) 呈现色彩多态性 (白色和黄色的后翼) 与交配成功有关.
- 了解基因型,行为和环境之间的相互作用是解释多态维护的关键.
研究的目的:
- 调查三种颜色基因型 (WW,Wy,yy) 与女性费罗蒙信号传递和Arctia plantaginis男性天线形态的变异之间的关联.
- 为了确定女性的吸引力和生殖成功是否与颜色基因型相关.
- 检查男性颜色基因型和天线形态如何影响他们定位女性的能力.
主要方法:
- 实地和封闭实验使用三个颜色基因型的雌性进行,以测试吸引力.
- 评估Arctia plantaginis雄性到达雌性的能力是根据它们自身的颜色基因型和天线形态 (长度,面积,丝数) 来评估的.
- 进行了统计分析,以将形态相关的生殖成功,吸引力和男性感官特征与人口密度相关联.
主要成果:
- 与预测相反,与形态相关的生殖成功和吸引力没有相关.
- 更重的女性吸引了更少的男性;增加的体重减少了女性的吸引力,但增加了女性的吸引力.
- 黄色 (yy) 雌性通常更有吸引力,可能是由于早期的费洛蒙释放. 雄性天线片数和颜色形态影响了雌性位置的成功,在场地和围设置之间观察到特定的背景策略.
结论:
- 女性的吸引力受到费洛蒙释放,女性体重和人口密度的结合的影响,而yy女性的吸引力更高.
- 男人搜索成功是由形态特异性行为和当地人口密度调节的.
- 维护Arctia plantaginis的遗传变异可能是由基因型相关的女性信号策略与环境依赖的男性行为相互作用所驱动的.
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