Direct selection in vitro for herbicide-resistant mutants of Nicotiana tabacum.
Seven cell lines of Nicotiana tabacum resistant to the herbicide picloram were isolated from cell cultures. In crosses of plants regenerated from four cell lines, resistance was inherited as a single dominant Mendelian allele. Plants could not be regenerated from one cell line, and expression of resistance proved unstable in two others.
Department of Plant Breeding and Biometry and Section of Botany, Genetics, and Development, Cornell University, Ithaca, New York 14853.
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Chaleff
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Parsons