Cucurbit Genetics Cooperative
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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.

Literature Cited

  1. Robinson, R. W. and W. Mishanec. 1964. A radiation-induced seedling marker gene for cucumbers. Veg. Imp. Newsletter 6:2.
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