Genetic type T85 has black seed coats that are flecked with brown pigmentation. Flecking has been reported to be controlled by a single dominant gene, Fl (Woodworth in Morse and Cartter, 1937). This gene has been trans-ferred into 'Clark' by backcrossing (173-1004; R. L. Bernard, personal communication). Patterned seed coats have been observed in Glycine soja and G. gracilis (Stelly and Palmer, 1979).
Buzzell, R. I.
"Research Notes : Canada : Flecked pigmentation of soybean seed coats,"
Soybean Genetics Newsletter: Vol. 12
, Article 8.
Available at: https://lib.dr.iastate.edu/soybeangenetics/vol12/iss1/8