Abstract
Leaf tissue from five sugarcane clones with distinctive markers was cultured on a medium favoring callus growth. Transferred to a differentiation medium, calli produced over 5000 plants. Plants differentiated from two clones with stem markers exhibited a high rate of remission of the marker, but the marker reappeared in the vegetative progeny of these plants, and remission was, therefore, transient. Plants differentiated from callus from two clones with leaf markers showed a low rate of remission (2 or 3 per thousand) of the marker and the vegetative progeny was stable. A clone with variegated leaves produced plants with the majority having green leaves, some were albino, and some variegated, suggesting that plant differentiation may start with more than one cell. Permanent phenotypic change may result from tissue culture, but the results suggest that such changes are not frequent and may be confounded by temporary alterations or by chimeras formed in the process of differentiation.
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Irvine, J.E. The frequency of marker changes in sugarcane plants regenerated from callus culture. Plant Cell Tiss Organ Cult 3, 201–209 (1984). https://doi.org/10.1007/BF00040338
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DOI: https://doi.org/10.1007/BF00040338