Table 1. Relative abundance of virus reads as a percentage of total reads following transcriptome analysis (using Illumina) for three populations of black-grass (Peldon 05, Notts 05 and Roth 09).

Sample/replicate	Total number of reads	Relative abundance of virus reads (%)
		AMPV1	AMPV2	AMVV1
Peldon 05/1	13556109	0.084	0.154	0.035
Peldon 05/2	14405457	0.190	0.053	0.055
Peldon 05/3	14674	0.190	0.204	0.075
Notts 05/1	7625139	0.421	0.116	0
Notts 05/2	6362601	0.091	0.039	3.143 × 10−5
Notts 05/3	10446490	0.084	0.111	4.786 × 10−5
Roth 09/1	4609793	0.146	0.065	4.338 × 10−5
Roth 09/2	3876546	0.231	0.089	5.159 × 10−5
Roth 09/3	8917820	0.048	0.005	2.242 × 10−5