Single juveniles of the potato cyst nematodes <i>Globodera rostochiensis</i> and <i>G. pallida</i> differentiated by randomly amplified polymorphic DNA

J. Roosien, P. M. van Zandvoort, Rolf T. Folkertsma, J. N. A. M. Rouppe Van Der Voort, Aska Goverse, F.J. Gommers, Jaap Bakker

Parasitology · 1993 · 22 citations · 19 references

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Abstract

Random amplified polymorphic DNA (RAPD) offers a potential basis for the development of a diagnostic assay to differentiate the potato cyst nematode species Globodera rostochiensis and G. pallida. Nine decamer primers have been tested for their ability to amplify species-specific DNA sequences. Primer OPG-05 produced 2 discrete DNA fragments, which were consistently present in 5 G. rostochiensis populations and absent in 5 G. pallida populations. These fragments were detectable in single females as well as in single 2nd-stage juveniles. Their amplification is extremely efficient, and reproducible over a wide range of template concentrations. One-fifth of a single juvenile is sufficient to generate reproducible RAPD markers. The amplification from single juveniles requires no DNA isolation. The use of a crude homogenate does not impair the polymerase chain reaction.

References

19