The substances responsible for fluorescence in soybean roots have not been identified and their function is not known, but the trait is useful in both physiological and genetic research. Therefore, we decided to develop near-isogenic lines in the cultivar 'Hark' with the Fr1 Fr1 (root fluorescent) genotype and the fr1 fr1 (root nonfluorescent) genotype. The original cross was 'Minsoy' fr1 fr1 x Hark Fr1 Fr1.
Palmer, Reid G.; Broich, Steven; and Delannay, Xavier
"Research Notes : Fr1 and fr1 near-isogenic lines,"
Soybean Genetics Newsletter: Vol. 10
, Article 18.
Available at: https://lib.dr.iastate.edu/soybeangenetics/vol10/iss1/18