An unusual chlorotic mutant that is variably viable was found in 1977. Preliminary inheritance data and phenotypes of the mutant were described by Stelly, Muir and Palmer in 1979. Combined F2 plant and F3 family analyses suggested monogenic recessive inheritance of the chlorotic phenotype.
Stelly, David M. and Palmer, Reid G.
"Research Notes : The T270H chlorotic mutant: Inheritance and linkage analysis,"
Soybean Genetics Newsletter: Vol. 10
, Article 34.
Available at: http://lib.dr.iastate.edu/soybeangenetics/vol10/iss1/34