locus,type,lg,marker.pos
c1.1,C,1,1.01
c1.2,C,1,1.02
c1.3,C,1,1.03
c1.4,C,1,1.04
c1.5,C,1,1.05
c2.1,C,2,2.01
c2.2,C,2,2.02
c2.3,C,2,2.03
c2.4,C,2,2.04
c2.5,C,2,2.05