Glycine tabacina (Labill.) Benth. and G. tomentella Hayata have both diploid (2n=2x=40) and tetraploid (2n=4x=80) forms (Singh and Hymowitz, 1985a). Although the diploid plants-ca; be distinguished cytologically from the tetraploids, the procedure is tedious, and requires precious greenhouse space. Seed isozyme analysis may prove to be a simpler approach for differen-tiating between the diploid and tetraploid tabacinas.
Rosenberg, M.; Menancio, D. I.; and Hymowitz, T.
"Research Notes : United States : Isozymes as predictors of ploidy level in Glycine tabacina (Labill.) Benth,"
Soybean Genetics Newsletter: Vol. 14
, Article 65.
Available at: http://lib.dr.iastate.edu/soybeangenetics/vol14/iss1/65