Intracistron Recombination in the Wx / wx Region in Maize

Abstract

Five independently occurring waxy (wx) mutants produce low frequencies of standard type (Wx) pollen grains (0.3 to 3.8 x 10^–5). In crosses between these mutants, frequencies of Wx pollen grains range from 1.4 to 88 x 10^-5, depending on the cross. Data from the crosses allow the ordering of the mutants within the region. Functional complementation between the different mutants does not occur.