biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 33:455-460, 1991 | DOI: 10.1007/BF02897719

Genome modifications in protoplast-derived tobacco plants: Phenotypic evaluation and RFLP Analysis

B Vyskot1, J Fajkus1, P Kuglík1, Blažena Koukalová1, Viera Kuhrová1
1 Institute of Biophysics, Czechoslovak Academy of Sciences, Brno, Czechoslovakia

Genomic instability of protoplast-derived tobacco plants was studied by means of phenotypic evaluation, karyological analysis, and Southern blot experiments. Of the total number of 91 regenerants belonging to 35 different protoclones 57 plants displayed various morphological and/or functional aberrations, some of them being inherited into the progeny. A karyological study of 20 randomly chosen plants revealed 15 tetraploid and 5 diploid chromosome sets. A Southern blot hybridization analysis of three regenerants displayed some DNA polymorphism (RFLP) and thus confirmed that in such plants alterations in the genome structure could be found and that genotypes of protoplast-derived plants frequently differ from the parental genotype.

Keywords: Genome instability; Protoplast-derived plants; Somaclonal variation; RFLP analysis; Nicotiana tabacuin

Received: February 1, 1991; Accepted: March 25, 1991; Published: November 1, 1991  Show citation

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Vyskot, B., Fajkus, J., Kuglík, P., Koukalová, B., & Kuhrová, V. (1991). Genome modifications in protoplast-derived tobacco plants: Phenotypic evaluation and RFLP Analysis. Biologia plantarum, 33(6), 455-460. doi: 10.1007/BF02897719
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