Entomology and Nematology Department, University of Florida, Gainesville, FL 32611, USA.
J Econ Entomol. 2010 Feb;103(1):40-6. doi: 10.1603/ec08324.
Juvenile hormone levels and adult diet have important effects on the attractiveness and competitiveness of male Anastrepha suspensa (Loew) (Caribbean fruit fly). Because the success of the sterile insect technique requires the release of males that can compete in the wild, these effects are of crucial importance. Laboratory and field cage experiments were conducted to compare male sexual performance on a lifetime basis and daily basis when submitted to four different treatments: (M+P+) application of the juvenile hormone analog, methoprene (M) and sugar and hydrolyzed yeast as adult food; (M+P-) application of M and sugar as adult food; (M-P+) no application of M and sugar and hydrolyzed yeast as adult food; and (M-P-) no application of M and sugar as adult food. On a daily basis, M+P+ males always performed better sexually, and 10% of these individuals were able to mate three consecutive times in the same day. However, the copula duration decreased with the increased number of matings on same day. In addition, M caused earlier maturation. On a lifetime basis, M+P+ males had significantly greater sexual success than other flies. The substantial improvement in male sexual performance because of the hormone application, protein supply, and interaction of hormone and protein has the potential of producing more efficacious sterile males.
在雄性 Anastrepha suspensa (Loew)（加勒比果蝇）的吸引力和竞争力方面，保幼激素水平和成虫饮食有着重要影响。由于不育昆虫技术的成功需要释放能够在野外竞争的雄性个体，因此这些影响至关重要。实验室和田间笼式实验比较了雄性在一生中以及每天的性表现，这些雄性分别经历了四种不同的处理：（M+P+）应用保幼激素类似物，烯虫酯（M）和糖以及水解酵母作为成虫食物；（M+P-）应用 M 和糖作为成虫食物；（M-P+）不应用 M 和糖以及水解酵母作为成虫食物；以及（M-P-）不应用 M 和糖作为成虫食物。在每天的基础上，M+P+的雄性总是表现出更好的性行为，其中 10%的个体能够在同一天连续交配三次。然而，随着当天交配次数的增加，交配持续时间会缩短。此外，M 会导致提前成熟。从一生的角度来看，M+P+的雄性具有显著更高的性成功，这归因于激素应用、蛋白质供应以及激素和蛋白质的相互作用，这有可能产生更有效的不育雄性。
