Kerr, E. A.
In TGC7, Williams reported extensive F2 data for ls but was not able to reach any conclusions on linkage relations. The following table sumarizes three years' data on some of the genes tested with ls at Vineland, Ontario. Crosses involving the genes p, o, bk, lg, u, HH, l\2, t, wf, and wt are not reported here as they did not show linkage and most of the populations were 100 plants or less. The data on the genes al, br and d all indicate linkage. Since these genes are on different chromosomes further tests are necessary.
Tester Linkage Phase a b c d %crossovers
br 1 R 239 99 86 24 42 +- 3.6
y 1 R 98 26 23 11
d 2 R 287 91 78 31)
C 235 69 59 35) 46 +- 2.3
BC 18 19 19 30)
s 2 R 27 5 9 4
n 7 R 147 76 48 23
al 8 R 213 55 77 9)
C 282 95 71 37) 42 +- 2.3
BC 25 12 18 31)
gf 8 R 160 48 4 11 47 +- 4.6
bu 8 R 166 57 34 10 48 +- 4.6
l\1
8 R 53 20 11 3 46 +- 8.1
pe 10 R 31 8 4 2
ag 10 R 20 7 11 4
C 123 42 34 19
r IV R 79 23 18 5
C 98 32 35 10
c IV R 71 29 21 8
C 134 31 38 15 45 +- 4.0
sp IV R 213 74 58 45
C 99 30 36 15
f V R 252 86 60 46
j\l V R 247 54 73 21
C 131 38 34 11
BC 21 16 22 27
e XI R 157 51 48 13
gs R 55 18 12 0
hp R 23 6 8 5
tf R 30 7 7 1
yv R 57 16 9 4