State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, Henan 455000, People's Republic of China.
Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, People's Republic of China.
J Agric Food Chem. 2022 Aug 3;70(30):9584-9595. doi: 10.1021/acs.jafc.2c02876. Epub 2022 Jul 21.
and are two important agricultural pests in cotton plants. However, whether early colonization of affects subsequent is unknown. We implemented ecological experiments to reveal that -damaged cotton plants [ (Bt) and non-Bt] had a significant avoidance effect on the oviposition preference of adults. However, -damaged cotton plants (non-Bt) increased the weight and pupation rate and reduced the mortality of larvae. Transcriptomic and metabolomic analyses showed that 13 and 9 genes were significantly upregulated to be involved in salicylic acid (SA) and indole acetic acid (IAA) biosynthesis, and SA and IAA contents were significantly increased, respectively. However, 15 genes involved in jasmonic acid (JA) biosynthesis were significantly downregulated as a result of the antagonism of SA and JA. Moreover, there was significant upregulation in multiple genes involved in the biosynthesis of l-histidine, fructose, maltotetraose, melezitose, lecithin, stearidonic acid, and mannitol, in which metabolites were confirmed to promote the growth and development of . Our study is a reference for investigating the evolutionary relationships and provides insights into implementing effective insect biocontrol between and .
棉铃虫和红铃虫是棉花作物中的两种重要农业害虫。然而，早期 对 的定殖是否会影响随后 的定殖尚不清楚。我们进行了生态实验，结果表明， - 损伤的棉花植物[（Bt）和非 Bt]对 成虫的产卵偏好具有显著的回避作用。然而，- 损伤的棉花植物（非 Bt）增加了 幼虫的体重和化蛹率，并降低了死亡率。转录组和代谢组分析表明，有 13 个和 9 个基因显著上调，参与水杨酸（SA）和吲哚乙酸（IAA）的生物合成，SA 和 IAA 的含量分别显著增加。然而，由于 SA 和 JA 的拮抗作用，15 个参与茉莉酸（JA）生物合成的基因显著下调。此外，多个与 l-组氨酸、果糖、麦芽四糖、蜜二糖、卵磷脂、亚麻酸和甘露醇生物合成有关的基因显著上调，其中代谢物被证实可促进 的生长和发育。我们的研究为研究 和 之间的进化关系提供了参考，并为实施有效的昆虫生物防治提供了思路。
