在女性系的同胞性和同胞性同胞性之间的繁殖兼容性
Aloisio Coelho1, Jaci Mendes Vieira2, Paul F Rugman-Jones3
1Department of Entomology and Acarology, University of São Paulo (USP)/ Luiz de Queiroz College of Agriculture (ESALQ). Av. Pádua Dias, 11, Zip code: 13418-220, Piracicaba, SP, Brazil.
Bulletin of entomological research
|June 6, 2023
概括
在Trichogramma pretiosum的繁殖兼容性在不同种群之间有所不同. 异性种群显示出有限的不相容性,而同性种群是不相容的,尽管有形态相似之处.
科学领域:
- 昆虫学 昆虫学是一门学科.
- 进化生物学 进化生物学
- 人口遗传学 人口遗传学
背景情况:
- 了解生殖相容性对于评估物种分歧至关重要.
- 虫 (Trichogramma pretiosum) 是一种重要的生物控制剂.
- 地理隔离可以导致昆虫种群的繁殖隔离.
研究的目的:
- 通过综合方法评估Trichogramma pretiosum的繁殖兼容性.
- 为了比较来自不同地理区域的同雌性线的生物数据和形态测量.
- 研究地理起源对生殖成功和遗传差异的影响.
主要方法:
- 从加利福尼亚州 (美国) 和圣保罗 (巴西) 收集了三条T. pretiosum同雌性线.
- 通过交配实验评估生殖兼容性,评估性别比例和后代产量.
- 使用多变量分析分析了26个字符的形态测量数据.
- 将线粒体DNA序列进行比较,以了解遗传分歧.
主要成果:
- 低交叉不兼容性在全方位 (巴西-美国) 异形雌性线之间观察到一个方向.
- 同型 (美国) 异型的女性线表现出两种方向的生殖不相容性.
- 多变量形态测量分析显示没有明显的分组,表明尽管有遗传和生物学差异,但形态相似性很大.
结论:
- 地理来源影响了Trichogramma pretiosum的生殖兼容性.
- 同样群体可能正在进行生殖隔离.
- 仅仅是形态数据可能无法反映T. pretiosum种群中的遗传和生殖差异.
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