A new primer set for amplification of ITS-rDNA in Ditylenchus destructor
Journal: RUDN Journal of Agronomy and Animal Industries (Vol.15, No. 2)Publication Date: 2020-06-13
Authors : Niloufar Mahmoudi; Davoud Nejad; Fatemeh Shayanmehr;
Page : 150-158
Keywords : Potato nematode; ITS-rDNA; Ditylenchus destructor; Primer design; Ditylenchus destructor;
Abstract
A technique was developed for the identification of Ditylenchus destructor nematode belonging to the Ditylenchus genus, based on the use of different primers for polymerase chain reaction (PCR). Two universal ribosomal primers were amplified to the internal transcribed spacer region ITS-rDNA. The sequencing of PCR products confirmed the polymorphism between species. The primers were sensitive to generate a particular band of the correct size (300bp) from the DNA template of a single, separate D. destructor stage of development. Screening populations of D. destructor from Iran and the Russian Federation have tested the reliability of the primers, and the expected size of the band was produced for all test populations. Ditylenchus destructor closely related species have also been tested and no specific band was amplified. Such results showed that the primers currently developed are useful for quantifying the D. destructo r density in potato tuber.
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