Table 1. Contig statistics.

Biotype	n reads (M)	Contigs >100 bp				Contigs >1 kb
		nb	assbl. Mb	% reads	N50	nb	assbl. Mb	% reads
M. sativa	3.68	21 110	5.98	41.29	380	669	1.09	18.61
T. pratense	7.07	29 298	8.75	40.25	415	1107	2.09	19.04
V. cracca	18.29	21 907	7.41	39.00	520	1135	2.25	26.00
P. sativum	6.26	21 123	7.13	49.34	510	1055	2.12	39.1
M. lupulina	7.56	20 932	7.01	48.66	508	1075	2.11	37.14
L. corniculatus	3.34	25 772	7.43	47.95	403	869	1.43	21.99
Melilotus spp.	3.68	23 792	6.9	44.21	408	879	1.41	18.83
S. varia	2.96	23 340	6.75	50.18	402	839	1.33	24.35
C. scoparius	5.01	27 081	7.84	33.55	410	1026	1.65	13.55
O. spinosa	3.67	25 170	7.4	45.84	418	977	1.56	20.46
L. pratensis	8.98	83 344	21.41	53.2	331	2211	3.42	22.67

For each biotype, the number of unmapped reads in million (n reads) used for the assembly is indicated along with several statistics describing the properties for two contig length cutoffs (100 bp and 1 kb), namely, the number of obtained contigs (nb), their cumulative length (assbl. Mb), the percentage of reads (% reads) that could be mapped to the contigs and the N50 value.