Redescription of Steinernema longicaudum Shen & Wang (Nematoda: Steinernematidae); geographic distribution and phenotypic variation between allopatric populations

S. P. Stock, J. Heng, D. J. Hunt, A. P. Reid, X. Shen, H. Y. Choo

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

Steinernema longicaudum Shen & Wang is redescribed based on a comparative morphological study of specimens from the type isolate from China, and two other isolates recovered from Korea and the USA. For the first and second generation female, the location of the vulva, shape of the vulval lips, and shape and length of the tail were newly observed diagnostic characters. A more detailed description of the morphology of the male spicules and gubernaculum, and the arrangement of the genital papillae is included. A description, based on scanning electron microscopy observations, of the lateral field pattern of the third-stage infective juveniles is also provided. Additionally, restriction fragment length polymorphism profiles based on the internal transcribed spacer region, and cross-breeding tests supplement the description of this species.

Original languageEnglish (US)
Pages (from-to)81-92
Number of pages12
JournalJournal of Helminthology
Volume75
Issue number1
StatePublished - Apr 28 2001
Externally publishedYes

ASJC Scopus subject areas

  • Parasitology
  • Animal Science and Zoology

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