Facultad de Ciencias Agronómicas Campus V, Universidad Autónoma de Chiapas, Carretera Ocozocoautla-Villaflores Km 84.5, Villaflores, Chiapas, Mexico.
Facultad de Ciencias Agrícolas Campus IV, Universidad Autónoma de Chiapas, Entronque carretera costera y Huehuetan Pueblo, Huehuetán, Chiapas, Mexico.
J Econ Entomol. 2020 Dec 9;113(6):2679-2687. doi: 10.1093/jee/toaa201.
The sterile insect technique (SIT), used to control different species of tephritid fruit flies (Diptera: Tephritidae), is an important element in sustainable agriculture because of its low negative impact on the environment. In SIT, flies are mass produced and sterilized in the laboratory and then released in a target area. However, once released, laboratory flies may confront harass environments that would reduce their performance and consequently SIT efficiency. Selecting flies that resist stressful conditions may help to improve the efficiency of the SIT by releasing males that resist desiccation, for example, ensuring, thus, their survival in environments with low relative humidity. However, the selection process may affect the resistance of flies to the stress of sterilization, since some life history traits are affected. Here, we studied the effect of irradiation on Anastrepha ludens (Loew) (Diptera: Tephritidae) desiccation resistant flies (DR) compared with nonselected flies (NS). We measured the effect of gamma irradiation dose (0, 20, 40, 60, and 80 Gy) on sterility (males and females) and quality parameters (emergence, flight ability, survival, and male sexual performance) in A. ludens adults of the DR and NS (control) strains. Our results indicate that irradiation affected equally the sterility of adults of both strains. None of the quality parameters differed between strains. The only difference was that DR flies survived longer than control flies. Thus, flies that are resistant to desiccation can be used in the SIT without altering the current process of irradiation and packing.
利用不育昆虫技术（SIT）控制不同种类的实蝇（双翅目：实蝇科）是可持续农业的重要组成部分，因为它对环境的负面影响较小。在 SIT 中，大量的昆虫在实验室中被绝育，然后在目标区域中释放。然而，一旦释放，实验室中的昆虫可能会面临骚扰环境，这会降低它们的性能，从而降低 SIT 的效率。选择能够抵抗压力环境的昆虫可能有助于提高 SIT 的效率，例如，通过释放能够抵抗干燥的雄性昆虫，确保它们在相对湿度较低的环境中生存。然而，选择过程可能会影响昆虫对绝育压力的抵抗力，因为一些生活史特征会受到影响。在这里，我们研究了辐射对 Anastrepha ludens（Loew）（双翅目：实蝇科）耐旱性飞行昆虫（DR）与非选择飞行昆虫（NS）的影响。我们测量了伽马辐射剂量（0、20、40、60 和 80 Gy）对 DR 和 NS（对照）品系 A. ludens 成虫的绝育（雄性和雌性）和质量参数（出现、飞行能力、生存和雄性性表现）的影响。我们的结果表明，辐射对两种品系成虫的绝育率均有同等影响。质量参数在两种品系之间没有差异。唯一的区别是 DR 飞行昆虫的存活时间比对照飞行昆虫长。因此，具有耐旱性的飞行昆虫可以在 SIT 中使用，而不会改变当前的辐照和包装过程。
