Seeds set on partially male-sterile plants (see article 2 for a description of the sterility system) were grown in the greenhouse in the spring of 1977. One of the plants, designated D56, had an unusual growth habit --the plant was somewhat spindly, climbing, and had a thin main stem. It had been noted at the time of transplanting that the root system of the D56 seedling consisted of a very long tap root and unusually thin lateral roots.
Stelly, David M.; Heer, Hollys E.; and Palmer, Reid G.
"Research notes: A cytologically identifiable short chromosome,"
Soybean Genetics Newsletter: Vol. 6
, Article 24.
Available at: http://lib.dr.iastate.edu/soybeangenetics/vol6/iss1/24