These mutants have been assigned the accession numbers 3-625 (alb), 3-626 (c), and 3-623 (d), and seeds
are available to members on request. Seeds for the isogenic multiply-resistant, early, brachytic, cherry cultivar
carrying the normal alleles are likewise available.
Additional information on the M1 progenitors of these mutants is presented here.
3-625: alb allele (map position 125-0)
A chi-square analysis of the two progenies that segregate for both c and dwarf does not indicate independence, and
further work is being done with the M1 seed.
3-623: d allele (map position 2L-70)
ex 78L1101-142 (Medium Vigorous): 50% fruit set, normal plant diameter
This M1 plant was one of 15 selected for further investigation in our fate-mapping study. All dwarf mutants
segregate in progenies of fruits harvested from the first two primary branches (being first order divisions off the main
stem), occurring at a frequency of 0.17 (41 of 242 plants), with the exception of a single mutant on branch 6 (fruit
mutation frequency = 0.06). This is curious given the 2/5 phyllotaxy of tomato.
Kanwar, 1. S., E. A. Kerr, and P. M. Harney Linkage of Cf-1 to Cf-11 genes for resistance to tomato leaf mold,
Cladosporium fulvum Cke.
Previous work (TGC 22:15-16 and TGC 27:14) indicated that several genes for resistance to C. fulvum
exist. Linkage of the genes named from Cf-1 to Cf-11 has been tested in backcross populations with marker genes
covering all chromosomes. Linkage deviations were determined by Chi-square analysis and cross-over values
computed. Only those which showed significance are reported here in the table.
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