In a survey in the vineyards of Southwestern Iran, Chaharmahal and Bakhtiyari province, Xiphinema index populations were collected during 2019-2020. These nematodes are described based on morphological characters. Identification of this species was done based on the morphological and morphometrical features and analysis of the D2-D3 segments of 28S rRNA gene sequences. Females are similar morphologically to the original and other descriptions of X. index from different countries. Comparison of our sequences with those from the GenBank database showed Iranian X. index had 99-100% identity and 4-10 bases pair differences with sequences of the other populations of X. index. Phylogenetic analysis based on sequences of the partial 28S rRNA gene and using Neighbour Joining method placed our population within other populations of X. index.

Keywords