Gandrabur Elena, Terentev Anton, Fedotov Alexander, Emelyanov Dmitriy, Vereshchagina Alla
All-Russian Institute of Plant Protection, 196608 Saint Petersburg, Russia.
Advanced Digital Technologies, Peter the Great St. Petersburg Polytechnic University, 195251 Saint Petersburg, Russia.
Insects. 2023 Mar 8;14(3):271. doi: 10.3390/insects14030271.
The ecological plasticity of aphid populations is determined by their clonal and morphotypic diversity. Clones will be successful when the development of their component morphotypes is optimized. The purpose of this work was to reveal the peculiarities of clonal composition and the developmental characteristics of different summer morphotypes for the rose-grass aphid, (Walk.), which is an important host-alternating cereal pest and a useful model species. During the experiments, aphids were kept under ambient conditions on wheat seedlings at natural temperatures and humidity levels. An analysis of the reproduction of summer morphotypes and the resulting composition of offspring found that variation among the clones and morphotypes, as well as generational effects and an influence of sexual reproduction (and interactions between all factors) influenced the population structure of . The reproduction of emigrants was less among the clones than that of the apterous or alate exules. The number of offspring produced by apterous exules differed throughout the growing season (generational effects) and between years, with different clones exhibiting different responses. There were dispersing aphids only among the offspring of apterous exules. These results can contribute to future advances in the forecasting and monitoring of aphid populations.
蚜虫种群的生态可塑性由其克隆多样性和形态型多样性决定。当组成其的形态型的发育得到优化时，克隆体将会成功。这项工作的目的是揭示玫瑰草蚜（Walk.）的克隆组成特点以及不同夏季形态型的发育特征，玫瑰草蚜是一种重要的寄主交替型谷类害虫，也是一种有用的模式物种。在实验过程中，蚜虫在自然温度和湿度条件下饲养于小麦幼苗上。对夏季形态型的繁殖情况以及由此产生的后代组成进行分析发现，克隆体和形态型之间的差异，以及世代效应和有性繁殖的影响（以及所有因素之间的相互作用）影响了玫瑰草蚜的种群结构。在克隆体中，迁飞蚜的繁殖能力低于无翅或有翅留守蚜。无翅留守蚜产生的后代数量在整个生长季节（世代效应）以及不同年份之间存在差异，不同的克隆体表现出不同的反应。只有在无翅留守蚜的后代中存在迁飞蚜虫。这些结果有助于未来在蚜虫种群预测和监测方面取得进展。
