The Use of Somaclonal Variation for the Breeding of Disease-Resistant Plants
A prominent feature of plant tissue cultures is that genetic variations are frequently induced by spontaneous or mutagen-induced mutations or chromosomal abnormalities (Evans et al., 1983; Sunderland, 1977). These callus tissues are genetically chimeric with respect to newly induced characters and therefore could be useful gene sources for effectively isolating variant cells. Such a variation induced in callus tissues has been designated as somaclonal variation and has provided us with a new tool for improving crop plants (Larkin et al., 1981).
KeywordsTobacco Mosaic Virus Somaclonal Variation Resistant Line Callus Tissue Callus Line
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- Sunderland, N., 1977, Nuclear cytology, In Plant Tissue and Cell Culture (Street, H. E., ed.), Blackwell Scientific Publications, Oxford, pp. 177–205.Google Scholar