The scale insect Marchalina hellenica (Gennadius) (Hemiptera: Margarodidae) contributes to the production of pine honey in Turkey and Greece via the honeydew excreted when it feeds on pine trees. Although it is an insect of prime economic importance, there is no information on its genetic structure. Preliminary data were obtained based on sequencing analysis of 12s rDNA and COI mtDNA gene segments from samples from four areas of Turkey. Sequences of the 12s rDNA gene segment from Greek samples available in GenBank were also included. No variability was detected concerning the COI mtDNA gene segment analysis, although 13 haplotypes were revealed based on the 12s rDNA gene segment. The most distant population was from Mudanya-Bursa Province (Turkey). Further research is necessary on the genetic structure and variability of M. hellenica populations from the two neighboring countries.
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