Table 1. Comparison of Heterorhabditis bacteriophora genome with the complete genome of Caenorhabditis elegans (WS220) and the draft genomes of Meloidogyne hapla [132] and Brugia malayi [87].

	C. elegans	H. bacteriophora	M. hapla	B. malayi
Life style	Free living	Insect parasitic	Plant parasitic	Human parasitic
Genome size, Mb	100	∼ 80	54	90–95
Scaffolds	n/a	1,263	1,523	8,810
Scaffold N50, bp	n/a	312,328	83,645	93,771
Assembled, bp	100,267,623	77,007,652	53,578,246	70,837,048
Gene models	21,193	21,250	14,420	11,515
Median exon, bp	147	112	145	140
Average exon/gene	6	6	6	7
Median intron, bp	68	125	55	219
G+C, %	35.4	32.2	27.4	30.5