Table 1. Statistics of newly assembled C. nigoni genome (‘cn2’) and improved C. briggsae genome ‘cb4_improve’.

	C. nigoni (‘cn2’)			C. briggsae (‘cb4_improve’)		C. briggsae (‘cb4’)
LG	Size (bp)*	Gene count	% repeat	Size (bp)	Updated sequence (bp)#	Size (bp)	Gene count	% repeat
I	14 110 143	2454	30.5	15 452 308	661 459	15 455 979	3076	26.1
II	20 338 624	3520	31.2	16 619 993	307 295	16 627 154	3324	27.0
III	15 784 304	2554	35.8	14 574 343	355 551	14 578 851	2884	26.2
IV	22 101 115	2584	33.2	17 474 118	476 300	17 485 439	3271	23.8
V	24 289 761	4470	33.3	19 485 256	799 850	19 495 157	4799	22.5
X	27 349 973	4053	26.8	21 532 320	224 578	21 540 570	3744	17.6
Un	11 770 734	2827	27.8	1 378 321	NA	3 201 015	765	30.4
Total	135 744 654	22 462	31.1	107 902 949	2 825 033	108 384 165	21 863	23.7

*including ‘Ns’ estimated with BAC or fosmid interval. # including replaced ‘Ns’, newly added sequences and ‘unassigned’ contigs anchored back to chromosome. Number of the ‘Ns’ in some gaps seems overestimated as judged by the sequences present in the SLRs covering these gaps. LG, linkage group. NA, not applicable.