Haploids are being isolated annually among individuals obtained from polyembryonic seeds associated with the North Carolina male sterile (ms1). The haploids are being used to obtain aneuploids. In 1976 and 1977, 7,206 and 15,530 seeds, respectively, were obtained from male sterile plants (ms1 North Carolina) representing Maturity Groups I- V.
Sorrells, M. E. and Bingham, E. T.
"Research notes: Cytology of soybean haploid progeny,"
Soybean Genetics Newsletter: Vol. 5
, Article 34.
Available at: http://lib.dr.iastate.edu/soybeangenetics/vol5/iss1/34