Table 1. Published nematode genomes.

Species	Systematic position (Blaxter Clade, Helder Clade*)	Year Published	Technology	Genome Size (Mbp)†	Number of chromosomes or scaffolds in assembly†	Scaffold N50 (kbp)†,‡	AT content (%)†	Number of genes/ proteins†
Caenorhabditis elegans	V, 9E	19982	Sanger	100	6 chromosomes	17,494	64.6	20,461 / 25,244
Caenorhabditis briggsae	V, 9E	20033	Sanger	108	6 chromosomes + 5 fragments	17,485	62.6	NA / 21,986
Brugia malayi	III, 8	200752	Sanger	96	27,210	38	69.4	18,348 / 21,332
Meloidogyne hapla	IV, 11	200824	Sanger	53	3,452	38	72.6	NA / 13,072
Meloidogyne incognita	IV, 11	200827	Sanger	82	9,538	13	68.6	NA / 21,232
Pristionchus pacificus	V, 9B	200853	Sanger	172	18,083	1,245	57.2	NA / 24,217
Caenorhabditis angaria	V, 9E	201033	Illumina	80	33,559	9	63.7	22,662 / 26,265
Trichinella spiralis	I, 2A	201136	Sanger	64	6,863	6,373	66.1	16,380 / 16,380
Bursaphelenchus xylophilus	IV, 10D	201137	Roche 454, Illumina	75	5,527	950	59.6	18,074 / 18,074
Ascaris suum	III, 8	201125	Illumina	273	29,831	408	62	18,542 / 18,542

^*Nematoda systematic clades as defined by Blaxter et al.²¹ and Holterman et al.²⁹

^†Nuclear genome only, not including mitochondria or endosymbionts, computed from WormBase release WS227 where available or from data URLs in Table 2.

^‡Scaffold N50: Half the assembly is in scaffolds of this size or larger in the nuclear genome.