Differential gene expression after osmotic induction in various species of entomopathogenic nematodes

The expression patterns of fat-2 and sod-2 after osmotic induction were studied in four species of EPN, Steinernema carpocapsae, S. loci, Heterorhabditis bacteriophora and H. indica, which represented a good and a weak desiccation tolerant species from each genus, respectively. The expression of fat-2 was significantly different between the four species. It was down-regulated in H. bacteriophora but was up-regulated in the other three species. The expression of sod-2 was not significantly different between the four species, with an increase in the expression level of 1.6 to 2.0 fold. The possible mechanism of responses of these genes is discussed.The expression patterns of fat-2 and sod-2 after osmotic induction were studied in four species of EPN, Steinernema carpocapsae, S. loci, Heterorhabditis bacteriophora and H. indica, which represented a good and a weak desiccation tolerant species from each genus, respectively. The expression of fat-2 was significantly different between the four species. It was down-regulated in H. bacteriophora but was up-regulated in the other three species. The expression of sod-2 was not significantly different between the four species, with an increase in the expression level of 1.6 to 2.0 fold. The possible mechanism of responses of these genes is discussed.A