Taxonomy of Longidorid Nematodes and Dichotomous Keys for the Identification of Xiphinema and Xiphidorus Species Recorded in Brazil

Abstract

Ectoparasitic Longidoridae are globally an economically important family of nematodes that cause damage to an extensive range of crop plants by their feeding on plant root cells or transmitting viruses to a wide range of fruit and vegetable crops. Here, we provide an update review of Longidoridae taxonomy, including their basic morphology and the taxonomic characters used to distinguish the seven Longidoridae genera (Australodorus, Longidorus, Longidoroides, Paralongidorus, Paraxiphidorus, Xiphidorus and Xiphinema). In addition, dichotomous keys for the identification of Xiphidorus and Xiphinema species reported in Brazil are presented.