The Order of the Genes C, Sh and Wx in Zea Mays with Reference to a Cytologically Known Point in the Chromosome

In this seldom-cited paper, published in the same issue of the "Proceedings of the National Academy of Sciences" as Creighton and McClintock's paper on genetic and cytological crossingover, McClintock established the crossover frequencies and order of the genes C (red aleurone in the kernel), Sh (shrunken endosperm), and Wx (waxy endosperm).