Abstract:

In order to correctly identify spider mites in Tetranychidae for the wide application in production and scientific research, mitochondrial genes and nuclear genes were used for phylogenetic analysis of spider mites, through which species could be effectively identified and cryptic species revealed，and phylogenetic analysis conducted. Compared to conventional morphological identification, molecular taxonomy could identify the organism at different development stages, and the investigation results were more objective and could be verified. Mitochondrial genes plus nuclear genes could provide important evolutionary information in different depth of the phylogenetic tree and hence solve the evolutionary problems. And combination of conventional morphological taxonomy with molecular taxonomy would be more helpful for correct species identification and phylogenetic analysis.