| Title: | Influence of Sunlight Incidence and Fruit Chemical Features on Oviposition Site Selection in Mango by Anastrepha obliqua: Implications for Management |
| Author(s): | Guillen L; Monribot-Villanueva JL; Guerrero-Analco JA; Ortega R; Altuzar-Molina A; Mena V; Ruiz-May E; Aluja M; |
| Address: | "Instituto de Ecologia, A.C. (INECOL)-Cluster Cientifico y Tecnologico BioMimic(R), Red de Manejo Biorracional de Plagas y Vectores, Carretera Antigua a Coatepec 351, El Haya, Xalapa 91073, Veracruz, Mexico. Instituto de Ecologia, A.C. (INECOL)-Cluster Cientifico y Tecnologico BioMimic(R), Red de Estudios Moleculares Avanzados, Carretera Antigua a Coatepec 351, El Haya, Xalapa 91073, Veracruz, Mexico. Instituto Tecnologico de Ursulo Galvan, Carretera Cardel-Chachalacas Km 4.5, Ursulo Galvan 91667, Veracruz, Mexico" |
| ISSN/ISBN: | 2075-4450 (Print) 2075-4450 (Electronic) 2075-4450 (Linking) |
| Abstract: | "With the aim of identifying key factors that determine oviposition decisions by Anastrepha obliqua for management purposes, we conducted a behavioral study under natural/semi-natural field conditions to identify where exactly in the fruit (upper, middle, or lower sections) females preferred to lay eggs in a highly susceptible mango cultivar ('Criollo'), and whether sunlight incidence and fruit chemical compounds influenced oviposition site selection by this pestiferous fly. Females oviposited in shaded, upper fruit sections where pulp had higher total carbohydrate concentrations but similar total protein, lipid, and polyphenol concentrations than non-oviposited sections. Peel had higher overall nutrient and mangiferin/quercetin-3-D-galactoside (polyphenols) concentrations. An untargeted metabolomic analysis of oviposited and non-oviposited fruit sections identified abscisic acid (ABA) and dihydrophaseic acid glucoside, a by-product of ABA catabolism, as potential chemical markers that could play a role in fruit acceptance behaviors by female flies. We conclude that females preferentially oviposit in fruit sections with optimal chemical and environmental conditions for larval development: more carbohydrates and antioxidants such as mangiferin and ferulic acid and lesser sunlight exposure to avoid lethal egg/larval desiccation/overheating. We make specific recommendations for A. obliqua management based on female host selection behavior, a tree pruning scheme exposing fruit to direct sunlight, application of a host marking pheromone, and the use of egg sinks in the orchard" |
| Keywords: | Mangifera indica Tephritidae abscisic acid mangiferin sunlight-effect/oviposition decisions untargeted plant metabolomics; |
| Notes: | "PubMed-not-MEDLINEGuillen, Larissa Monribot-Villanueva, Juan L Guerrero-Analco, Jose A Ortega, Rafael Altuzar-Molina, Alma Mena, Victoria Ruiz-May, Eliel Aluja, Martin eng FOMIX-VER-2017-01-292397/Consejo Nacional de Ciencia y Tecnologia/ 41010/Asociacion de Productores, Empacadores y Exportadores de Aguacate de Mexico (APEAM)/ 41011-2017 and 41012-2018/Mexican Campana Nacional Contra Moscas de la Fruta (Convenio SAGARPA [currently SADER] - CONACOFI - INECOL)/ Switzerland 2022/02/26 Insects. 2022 Jan 28; 13(2):141. doi: 10.3390/insects13020141" |
