Linkage tests with Stubbe's mutants.<p>

Kerr, E, A.<p>

Fifteen mutants from Stubbe's list II (Kulturpfl.6:89-115) were tested for
linkage with the markers a\1 e mc t u wf y and c, d\1, gs, H j\1 l\1 r.  A few
were tested with al br d\1 f H j\1 wt. In general a population of 110 plants
was grown.  Crossover values were calculated by the product moment method.
When no double recessive was obtained, one plant was assumed.  The following
combinations indicated linkage in F2 repulsion.  Since e and gs are on
different chromosomes, only one of the linkages with not is real.  Seeds of
the mutants and other relevant lines have been sent to the cooperators for the
respective chromosomes.<p>
<pre>
Combination
m       t    ++    +t     m+    mt    co
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ig    - gs   55    35     15     0   &lt;22
in    - y    61    22     27     0   &lt;21
intro - e    52    24     32     0   &lt;18
min   - a\l  43    20     11     0   &lt;28
min   - j\l  52    16      9     0   &lt;36 
not   - e    53    24     28     3    30
not   - gs   46    35     33     1    14
op    - gs  260   115    117     5     7
pau   - r    66    27     15     1    26  
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