Brazil and South Africa are centres of diversity of Burkholderia ssp. that nodulate legumes (Gyaneschwar et al, 2011; Beukes et al. 2013). The nod gene sequence of Burkholderia spp, capable of nodulating South Africa plants are clearly separated from those of Burkholderia spp. shown to nodulate South American plants. Where tested, the South African strains did not nodulate South American plants nodulated by Burkholderia spp. (Gyaneschwar et al. 2011)
