LINKAGE SUMMARY
Several changes in linkage assignments were made in l957. Early in the year
Dr. Harold Young kindly volunteered for an assigment, whereupon the tf-Fw
group was referred to him. When trisomic and linkage tests (see research
Notes by Rick) indicated later in the year that tf lies in chromosome 7
(X,XII), it became apparent that Dr. Young and Dr. Barham were assigned to the
same chromosome. Dr. Barham then offered to relinquish 7, so that Dr. Young
could take full possession. As manifest in his Research Note, Dr. Gilbert has
complete mastery of the situation in chromosome 6 (IV). He has kindly agreed
to take charge of this chromosome. Several interesting groups -- 10 (VII), 4?
(XI), IX, rv-sf are in the temporary care of Dr. Butler, but he will be glad
to be relieved by any energetic volunteers.
The new linkages reported in this Report together with all past data of which
we are aware have been consolidated in the revised maps on the following page.
Most loci are pretty well determined by others, including those of Cf2 on 6
and several genes on 1, are slightly precarious. The assistance of David
Pratt in preparing this summary is gratefully acknowledged.
Revised Chromosome Map of the Tomato
Revised Chromosome Map of the Tomato
