title: Intraspecific variability of Steinernema feltiae strains from Cemoro Lawang, eastern Java, Indonesia.
abstract: Four strains of Steinernema feltiae from Eastern Java, Indonesia were characterized based on morphometric, morphological and molecular data. In addition, their virulence against last instar Tenebrio molitor and heat tolerance was tested. Infective juvenile have a mean body length ranging from 749 to 792 microm. The maximum sequence difference among the four strains was 7 bp (8.8%) in the ITS and 2 bp (0.3%) in D2D3 regions of the rDNA. All the strains are not reproductively isolated and can reproduce with European strain S. feltiae Owiplant. The lowest LC50 was observed for strain SCM (373) and the highest for S. feltiae strain Owiplant (458) IJs/40 T. molitor. All four strains showed relatively better mean heat tolerance when compared with S. feltiae Owiplant, both in adapted and non-adapted heat tolerance experiments.
authors.affiliation: Ghent University, Department of Biology, K.L. Ledeganckstraat 35, BE-9000 Gent, Belgium.
authors.forename: T
authors.initials: T
authors.lastname: Addis
authors.forename: M
authors.initials: M
authors.lastname: Mulawarman
authors.forename: L
authors.initials: L
authors.lastname: Waeyenberge
authors.forename: M
authors.initials: M
authors.lastname: Moens
authors.forename: N
authors.initials: N
authors.lastname: Viaene
authors.forename: R U
authors.initials: RU
authors.lastname: Ehlers
mesh_terms: D000818:Animals; D003433:Crosses, Genetic; D003710:Demography; D014644:Genetic Variation; D007214:Indonesia; D009348:Nematoda / Q000235:genetics*; D010802:Phylogeny; D013712:Tenebrio / Q000469:parasitology