1. Helicoverpa gelotopoeon (Dyar) (Lepidoptera: Noctuidae) is a polyphagous pest that has been reported causing damage in many agricultural crops such as soybean, chickpea and cotton. This species, together with Helicoverpa zea (Boddie), Helicoverpa armigera (Hübner) and Chloridea virescens (Fabricius), belongs to the Heliothinae complex of economic importance in Northwestern Argentina.
2. Many species in the Heliothinae subfamily have developed resistance to insecticides and insecticidal proteins from Bacillus thuringiensis (Bt). Managing resistance to these control tactics in H. gelotopoeon is of high importance and dependant on knowledge of population genetics of this species.
3. The objective of this study was to evaluate the genetic variability and structure of H. gelotopoeon populations from different host plants and geographic regions of Argentina. Towards this goal, six microsatellite loci were screened across 196 individuals.
4. The results obtained revealed high genetic diversity and lack of clear structure among the populations of H. gelotopoeon studied. This genetic homogeneity between populations from different geographical regions and hosts could be attributed to the long-range migratory capacity of Heliothinae and the generalist behaviour of H. gelotopoeon.

中文翻译：

---

阿根廷 Helicoverpa gelotopoeon (Lepidoptera: Noctuidae) 种群的微卫星变异

1. Helicoverpa gelotopoeon (Dyar) (Lepidoptera: Noctuidae) 是一种多食性害虫，据报道会对许多农作物如大豆、鹰嘴豆和棉花造成损害。该物种与Helicoverpa zea (Boddie)、Helicoverpa armigera (Hübner) 和Chloridea virescens (Fabricius) 一起属于阿根廷西北部具有重要经济意义的 Heliothinae 群。
2. Heliothinae 亚科中的许多物种已经对来自苏云金芽孢杆菌(Bt) 的杀虫剂和杀虫蛋白产生了抗性。在H. gelotopoeon 中管理对这些控制策略的抗性非常重要，并且依赖于该物种的种群遗传学知识。
3. 本研究的目的是评估来自阿根廷不同寄主植物和地理区域的H. gelotopoeon种群的遗传变异性和结构。为实现这一目标，在 196 个人中筛选了六个微卫星位点。
4. 获得的结果揭示了所研究的H. gelotopoeon种群之间的高遗传多样性和缺乏清晰的结构。来自不同地理区域和宿主的种群之间的这种遗传同质性可归因于 Heliothinae 的远程迁移能力和H. gelotopoeon的通才行为。