A work led by Dr. P. Smith (La Trobe University) in collaboration with labs in Australia, Switzerland, and us has shown that soybean is also using YSL7 transporters to control nodule homeostasis in nodules, as we reported in Medicago. Interestingly, the soybean ortholog is only expressed in nodules, located in the symbiosome membrane. This illustrates that determinate and indeterminate type of nodules use similar elements to control metal allocation but have different control points. You can find the publication here.