The Spl locus (Orf and Hymowitz, 1976; Gorman and Kiang, 1978) codes for beta-amylase (Hildebrand and Hymowitz, 1980). Two mobility variants and two null variants have been described (Orf and Hymowitz, 1976; Kiang, 1981). We have been conducting a survey of isoenzyme variability in the soybean genn-plasm collections.
Griffin, J. D. and Palmer, Reid G.
"Research Notes : United States : An additional beta-amylase mobility variant conditioned by the spl locus,"
Soybean Genetics Newsletter: Vol. 13
, Article 36.
Available at: http://lib.dr.iastate.edu/soybeangenetics/vol13/iss1/36