Molecular and phenotypic variations in Eutetranychus orientalis (Klein) populations from Saudi Arabia.

ABSTRACT: The oriental red spider mite, Eutetranychus orientalis (Klein) is a major pest of citrus in many countries including Saudi Arabia (SA). The morphological variations among the different populations of E. orientalis were reported. In the present study, phenotypic variations based on 40 different morphological characteristics were evaluated in 10 E. orientalis populations collected from different hosts and regions of SA. Further, ITS2-rDNA sequences were used to confirm the identity of these phenotypically varying populations. Phenotypic variations in all populations were found in the shape and length of dorsal setae, striation pattern between setae d1 and e1, and leg chaetotaxy. The rDNA sequence analysis of these morphologically varying populations resulted in 10 different ITS2 Saudi haplot

SUBMITTER: Mirza JH 

PROVIDER: S-EPMC7237003 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature