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生态利基适应影响传染性元素动力学在授粉和非授粉无花果黄蜂

Jing Liu¹, Yun-Heng Miao¹, Hong-Xia Hou²

¹Institute of Entomology, College of Life Sciences Nankai University Tianjin China.

Ecology and evolution

|June 19, 2025

概括

生态格在无花果黄蜂中形成可转移元素 (TE) 动态. 由于种群较小,授粉者具有有限的TE插入,而非授粉的无花果黄蜂则表现出受基因组大小和卵位影响的TE扩张.

科学领域:

基因组学就是基因组学.
进化生物学进化生物学
生态生态学生态生态学

背景情况:

可转移元素 (TE) 是移动的遗传序列,影响基因组进化.
无花果黄蜂表现出多样化的生态作用,包括授粉和种子掠食,可能会影响它们的基因组景观.
了解与生态相关的 TE 动态,可以揭示适应性的进化过程.

研究的目的:

调查生态,特别是卵置点对传染性元素 (TE) 动态在受粉和非受粉无花果黄蜂 (NPFWs) 的影响.
为了比较TE负载,类型和授粉和NPFW之间的动态,以了解基因组进化.
通过检查它们与调节基因的接近来评估TE在适应中的作用.

主要方法:

在六种授粉物种和五种NPFW物种中对 TE负载和动态进行比较分析.
遗传学分析以关联基因组大小,卵位和TE长度.
分析自然选择和人口动态对TE积累的影响.

主要成果:

在授粉者和NPFW之间发现了TE长度,数量和类型的显著差异.
由于基因组大小和卵位的位置,NPFW表现出不断扩大的TE,而授粉者则表现出有限的TE插入 ("休眠"景观).
测试实验室在参与环境信息处理的基因附近贡献了 cis 调节模块,这表明它在适应中发挥了作用.

结论:

生态,特别是卵置点,是无花果黄蜂基因组中TE动态的关键驱动因素.
授粉者尽管选择放松,但 TE 丰度仍然很低,这可能是由于种群规模的缩减.
通过对环境反应基因的调节,TE在昆虫适应中发挥着重要作用.

关键词:

泰士兰的风景景观.人口统计历史人口统计历史基因组的演化基因组的演化自然选择自然选择遗传学分析遗传学分析转位子转位子

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