US biotechnology trait licensing company GreenLeaf Genetics (Omaha) has appointed Clayton Becker as national sales director for its traits division. Mr Becker was previously the trait sales manager. GreenLeaf has also appointed Rich Hall as national sales director for its genetics division. Mr Hall was working as the genetic sales manager prior to the appointment. GreenLeaf Genetics is a joint venture between Syngenta and DuPont subsidiary, Pioneer Hi-Bred International.