Cucurbit Genetics Cooperative Report 10:11 (article 10) 1987
Independence of gl and yc
R. W. Robinson
Horticultural Sciences Department, New York State Agricultural Experiment
Station, Geneva, NY 14456
Glabrous (gl) and yellow cotyledon (yc) cucumber mutants
were orginally considered, on the basis of no double recessives being found
in a repulsion phase F2 to be linked on the same chromosome (1).
Subsequently, however, more informative coupling F2 data from
larger populations have been obtained that indicate that the two seedling
marker genes are not closely linked. Combined segregation data from four
populations (382 ++: 107 +yc: 112 gl+: 35 gl yc) did not differ significantly (48.5 ± 2.0 % crossing over) from
that expected for independent assortment of the two genes.
- Robinson, R. W. and W. Mishanec. 1964. A radiation-induced seedling marker
gene for cucumbers. Veg. Imp. Newsletter 6:2.