Phylogenetic studies on three Helicotylenchus species based on 28S rDNA and mtCOI sequence data.

ABSTRACT: To facilitate the process of spiral nematode species delineation, populations of Helicotylenchus canadensis, H. pseudorobustus, and H. varicaudatus deriving from various locations and diverse natural and anthropogenic environments from Poland were investigated and characterized. For the first time, 28S rDNA sequences are reported for H. canadensis and H. varicaudatus, whereas new mtCOI sequences were acquired for all three analyzed species. A Bayesian phylogenetic analysis of the 28S rDNA fragments revealed that H. canadensis and H. varicaudatus are members of a clade that is a sister group to all other Helicotylenchus species; however, the closest known sister group to H. canadensis is H. vulgaris type A. Both 28S rDNA-

SUBMITTER: Rybarczyk-Mydlowska K 

PROVIDER: S-EPMC6929645 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature