A PCR-based diagnostic protocol was developed to detect and identify species of virus-transmitting nematodes in viticulture as well as nematode species that are taxonomically similar and thus can be easily misidentified. In addition to already published primers for three Xiphinema species, specific primers were designed for six Longidorus and one Paralongidorus species using the genetic variability of the ITS1 region. These new specific primers were combined with a universal forward primer located in a conserved region of the 18S rDNA gene based on an alignment of around 80 longidorid populations. This alignment was also used to construct phylogenetic trees to determine genetic relationships amongst species belonging to the Longidoridae.
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A PCR-based diagnostic protocol was developed to detect and identify species of virus-transmitting nematodes in viticulture as well as nematode species that are taxonomically similar and thus can be easily misidentified. In addition to already published primers for three Xiphinema species, specific primers were designed for six Longidorus and one Paralongidorus species using the genetic variability of the ITS1 region. These new specific primers were combined with a universal forward primer locat...
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