The 'Harosoy' Rps2 isoline L70-6494 appears to have the Rj2 allele for ineffective nodulation with strains in the 122 and cl serogroups of Rhizobi um japonicum. Devine and Breithaupt (1981) screened some germplasm and uniform group test lines for the presence of Rj2 and Rj4. The line L75-11806 (in 1979 preliminary IV) was reported to have Rj2.
Luedders, Virgil D.
"Research Notes : United States : Linkage of the Rps2 and Rj2 genes for resistance to Phytophthora and Rhizobium,"
Soybean Genetics Newsletter: Vol. 14
, Article 69.
Available at: https://lib.dr.iastate.edu/soybeangenetics/vol14/iss1/69