摘要

Ektaphelenchoides poinari sp. n. is described and illustrated based on morphological, morphometric and molecular data. The new species is characterised by females with 477-565 mu m long body, offset lip region 7.5-9.5 mu m wide, separated from the rest of the body by a shallow constriction, 18-23 mu m long stylet lacking knobs at base, position of excretory pore at the level to slightly posterior of the metacorpus base, three incisures in lateral field, short post-uterine sac (PUS) (0.3-0.4 corresponding body width), posterior end of the body conical, males rare, spicules having rounded condylus, pointed rostrum and blunt end. The new species is close to E. attenuata, E. kelardashtensis, E. musae, E. pini, E. sylvestris and E. winteri, but differs from them by its shorter PUS, shape of posterior body end in females and males, position of vulva and excretory pore and molecular characters. Ektaphelenchoides poinari sp. n. was easily differentiated from other sequenced species by the partial small subunit rRNA gene (SSU), D2D3 expansion segment of the large subunit rRNA gene (LSU) and internal transcribed spacer 1 (ITS 1). Phylogenetic analysis with these sequences suggests that E. poinari sp. n. is close to other Ektaphelenchoides species and Devibursaphelenchus. A compendium for valid species based on morphological and morphometric characters is also given.

  • 出版日期2014