The Agricultural Research Service, U.S. Department of Agriculture, released the high β-carotene cucumber (Cucumis sativus var. sativus L.) line EOM 402-10 in Jan. 2011. Line EOM 402-10 was made available to U.S. cucumber breeders to supply a source from which they may develop elite germplasm possessing high levels of β-carotene as a natural source of vitamin A to the human diet (i.e., improve nutritional value of cucumber). This germplasm is fixed for genes controlling the expression of β-carotene in mature (2 to 5 cm in diameter) greenhouse-grown fruit (Cuevas et al., 2010). Therefore, line EOM 402-10 can be used directly in breeding programs for the introgression of three β-carotene genes (Cuevas et al., 2010; Navazio and Simon, 2001) into elite germplasm. Moreover, the relatively short life cycle of cucumber (3 to 4 months) makes EOM 402-10 an attractive candidate for use in functional genomics studies that seek to clarify carotenoid accumulation in higher plants.
Cuevas, H.E., Song, H., Staub, J.E. & Simon, P.W. 2010 Inheritance of beta-carotene-associated flesh color in cucumber (Cucumis sativus L.) fruit Euphytica 171 301 311
Simon, P.W. & Navazio, J.P. 1997 Early orange mass 400, early orange mass 402, and late orange mass 404: High-carotene cucumber germplasm HortScience 32 144 145