| Affiliation: | Department of Biochemistry, The University of Arizona, Biosciences West, Tucson, AZ 85721, USA; Department of Plant Sciences, The University of Arizona, Biosciences West, Tucson, AZ 85721, USA; Department of Molecular and Cellular Biology, The University of Arizona, Biosciences West, Tucson, AZ 85721, USA; Plant Genetics and Breeding Laboratory, Japan Tobacco Inc., Iwata, Japan; University of Newcastle, Department of Agricultural and Environmental Sciences, Ridley Building, Newcastle upon Tyne NE1 7RU, UK; To whom correspondence should be addressed. E-mail: |
