Biopolym. Cell. 2007; 23(5):416-424.
http://dx.doi.org/10.7124/bc.00077C
Genome and Its Regulation
Genomic variability in maize callus cultures of lines P346 and its derivative somaclonal lines
1Maidanyuk D. M., 1Andreev I. O., 1Spiridonova K. V., 1Kunakh V. A.
  1. Institute of Molecular Biology and Genetics, NAS of Ukraine
    150, Akademika Zabolotnoho Str., Kyiv, Ukraine, 03680

Abstract

Callus tissues from individual maize plants of line P346 and derived from it through in vitro tissue culture of somaclonal variants showing increased regeneration capacity have been analyzed by RAPD. As early as after two months in culture maize calli exhibited genome changes but following four months their level decreased almost twice. The emergence of homotypic DNA changes in calli obtained from different plants of individual lines was registered thus suggesting the existence of variability hot-spots within the maize genome. The somaclonal lines were shown to vary by the level of the genetic changes in culture in vitro.
Keywords: maize, plant tissue culture, somaclonal lines, RAPD analysis, genome rearrangements
Full text: (PDF, in English) (PDF, in Ukrainian)

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