3. Unreported linkage of o2 and ra1, and gl1 and ij:

Genes Phase XY Xy xY xy Total No. %
O2 Ra1 RB 116 597 554 109 1376 225 16
O2 Ra1 CB 127 15 15 112 269 30 11
O2 Gl1 RS 3148 1595 1487 64 6294   20
O2 Ij RS 405 169 184 30 688   37
O2 V5 RS 758 353 328 13 1452   20*

* These plants were grown in a warm greenhouse and hence the classification for v5 was difficult. All questionable plants were classified as v5. This per cent is probably not reliable.