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Evaluación de Líneas Sivestres e Híbridas de Tamarixiaradiata1 para Optimizar su Reproducción Masiva en México

Author:
González-Cabrera, Jaime, Vizcarra-Valdez, Nora I., Sánchez-González, Jorge A., Moreno-Carrillo, Gabriel, Bernal, Hugo C. Arredondo
Source:
The Southwestern entomologist 2017 v.42 no.2 pp. 513-522
ISSN:
0147-1724
Subject:
Diaphorina citri, Tamarixia radiata, adults, fecundity, haplotypes, hybrids, longevity, mass rearing, parasitoids, sex ratio, tibia, vigor, Mexico
Abstract:
In January 2010, a program for mass production of Tamarixia radiata (Waterston) (haplotype H1) was established in Mexico to control the Asian citrus psyllid, Diaphorina citri Kuwayama. Since then, it has remained a genetically closed population. After 4.5 years (136 generations) of establishment, we suspected it could have lost genetic vigor; therefore, 12 lines of T. radiata were evaluated as candidates to improve its rearing strain. Adults of four wild and four hybrid lines were not different in fecundity, longevity, length of tibia, and sex ratio from adults of the mass-reared colony; whereas two wild lines and two hybrids produced ≤ fecundity, longevity, and length of tibia, but they had a higher sex ratio. Additionally, one of the hybrid lines had greater longevity than parasitoids from the laboratory. Analysis of the evaluation indicated that one wild line and one hybrid could be candidates for improvement of the rearing strain. The results suggested that the mass-reared strain retained genetic vigor in most of the evaluated parameters, and demonstrated that the parasitoids as component of a program of mass production in Mexico are of acceptable quality.
Agid:
5947234