Head, Plant Genome Mapping Laboratory, University of Georgia

Director, Center for Desert Agriculture, KAUST

Professor of Plant Breeding and Genetics, Cornell University

Plant Breeding, Wageningen University & Research

IRRI, Philippines and UC Davis

Institute of Experimental Botany

Professor of Genetics and Biotechnology, University of Missouri

University of California - Davis

Michigan State University

Distinguished Professor of Ecology and Evolutionary Biology, UC Irvine