1. Linkage relations of gl4 with wx and sh. The sample of gl4 was found in Minnesota in one of our cultures and was being studied at the time of Dr. Sprague's report on gl4.

Genes Phase XY Xy xY xy Total Recomb.
No. %
Sh Wx CB 213 66 39 172 490 105 21.4
Sh Gl4 CB 202 77 55 156 490 132 26.9
Wx Gl4 CB 235 17 22 216 490 39 9.0

Order of genes sh-wx-gl4