Left reads: Input : 508517 Mapped : 446822 (87.9% of input) of these: 18707 ( 4.2%) have multiple alignments (974 have >20) Right reads: Input : 508517 Mapped : 428113 (84.2% of input) of these: 18123 ( 4.2%) have multiple alignments (974 have >20) 86.0% overall read mapping rate. Aligned pairs: 388087 of these: 16229 ( 4.2%) have multiple alignments 7292 ( 1.9%) are discordant alignments 74.9% concordant pair alignment rate.