Abstract
The larvae of Ceraeochrysa cubana and Ceraeochrysa valida, green lacewing species widely spread in Mexico, have been described as natural enemies of Diaphorina citri (Hemiptera: Liviidae), vector of the bacteria Candidatus Liberibacter spp. causing Huanglongbing disease. To develop an effective biological control program, the establishment of the genetic structure of the biocontrol agent species is mandatory. Consequently, the goal of this work was to obtain reliable DNA barcoding regions of the two species, and then by sequence analysis of the mitochondrial gene cytochrome c oxidase subunit I, evaluate the genetic structure of Mexican lime populations of C. cubana and C. valida from the state of Colima. This research produced the first barcode region of C. cubana and C. valida with morphological and molecular confirmation. The genetic parameters revealed the presence of 15 and 10 haplotypes, and haplotype diversity values of 0.889 and 0.838 for C. cubana and C. valida, respectively. The populations showed high diversity and gene flow, and AMOVA analysis demonstrated no genetic structure in the two populations. Consequently, these single populations of C. cubana and C. valida could be used as unique genetic source for mass production and release in the Mexican lime-producing state of Colima to control D. citri.
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