2000 Cucurbita Gene List Update

Cucurbit Genetics Cooperative Report 23:137-138 (2000)

R.W. Robinson
Department of Horticultural Science, New York State Agricultural Experiment Station, Cornell University, Geneva NY 14456

H.S. Paris
Dept. of Vegetable Crops, Agric. Research Organization, New Ya’ar Research Center, P.O. Box 1021, Ramat Yishay, 30-095, Israel


Previous lists of Cucurbita genes were published in CGC Rpt. 15: 102-109 (1992) and in CGC Rpt. 19: 91-92 (1996). Before publishing a proposed new gene symbol for a Cucurbita gene, researchers are urged to consult this gene list and those in CGC 15 and 19 in order to avoid using a symbol already assigned to another gene.

The following list of new Cucurbita genes also includes a correction for the erroneous symbol for the Ds gene that was given in CGC Rpt. 19: 91-92 (1996).

Gene symbol Character Species Reference
Ds Dark stem. Dark green stem, fruit color not affected pepo 4
De determinate plant habit; stem lacking tendrils and terminating with female flowers moschata 2
mo-1 mature orange-1; complementary gene for loss of green fruit color prior to maturity pepo 5
mo-2 mature orange-2; complementary gene for loss of green fruit color prior to maturity pepo 5
Slc* Squash leaf curl virus resistance pepo 3
uml umbrella-like; leaves shaped like partially opened umbrella maxima x pepo 6
wc white corolla; petals white, tending to curl, less dentate than normal maxima 1
wyc white-yellow corolla; dentate, white-yellow petals maxima 1
* Proposed new gene symbol.

Literature Cited

  1. Korzeniewska, A. 1996. Two independent loci for white and white-yellow corolla in Cucurbita maxima Duch. In: M. L. Gómez-Guillamón, C. Soria, J. Cuartero, J. Torés, and R. Fernandez-Muñoz, eds. Proc. Cucurbitaceae Toward 2000: 6th Eucarpia Meeting Cucurbit Genetics Breeding. Gráficas Axarquía, Velez- Málaga, Spain. pp 78-81.
  2. Kwack, S. N. 1995. Inheritance of determinate growth habit in Cucurbita moschata Poir. J. Korean Soc. Hort. Sci. 36: 780-784
  3. Montes-García, C. E., S. Garza-Ortega, and J. K. Brown. 1998. Inheritance of the resistance to squash leaf curl virus in Cucurbita pepo. In: J. D. McCreight, ed. Cucurbitaceae ’98. Evaluation and Enhancement of Cucurbit Germplasm. A.S.H.S., Alexandria, Virginia. pp. 328-330.
  4. Paris, H. S. 1996. Multiple allelism at the D locus in squash. J. Hered. 87: 391-395.
  5. Paris, H. S. 1997. Genes for developmental fruit coloration of Acorn squash. J. Hered. 88: 52-56.
  6. Rakoczy-Trojanowska, M. and S. Malepszy. 1999. Inheritance of umbrella-like leaf shape in materials derived from Cucurbita maxima x C. pepo hybrids. Cucurbit Genet. Coop. Rpt. 22: 50-52.