Conservation of leghemoglobin heterogeneity and structures in cultivated and wild soybean

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Abstract
The leghemoglobins from a genetically diverse selection of 69 cultivated soybean (Glycine max (L.) Merr.) cultivars and plant introductions and 18 wild soybean (Glycine soja Sieb. and Zucc.) plant introductions all consist of the same set a major leghemoglobins (a, c1, c2, C3), as determined by analytical isoelectric focusing. The conversation of both leghemoglobin heterogenity and also all four major leghemoglobin structures provides strong circumstantial evidence that leghemoglobin heterogenity is functional. Glycine max and G. soja produced the same leghemoglobins in the presence of Bradyrhizobium japonicum (Kirchner) Jordon and in the presence of fast-growing Rhizobium japonicum.