file name	comparison
"group_none__none_lysis__T1.txt		"	PBS vs T1
"group_none__none_lysis__S7.txt		"	PBS vs S7
"group_lysis__S7_lysis__T1.txt		"	S7 vs t1
"group_lysis__none_none__none.txt	"	ML,LB vs PBS
"group_lysis__none_lysis__T1.txt		"	ML,LB vs T1
"group_lysis__none_lysis__S7.txt		"	ML,LB vs S7

group is the combination of lysis and Rnase_type columnes

lysis_lysis_none.txt	all but not PBS vs PBS
RNAse_rnase_none.txt	LB,ML,PBS vs MLS7,LBS7,MLT1,LBT1