Inter-Simple Sequence Repeat (ISSR) and retrotransposon-microsatellite amplified polymorphism (REMAP) markers were applied to study the influence of successive steps of dehydration cryopreservation on DNA in recovered calli and regenerated plants of spring wheat (Triticum aestivum L.). The precultivation step had no influence on the genetic stability of plant material. After the dehydration step, a new fragment appeared in the REMAP profiles for one DNA sample of calli of Nv16 line. A fragment of similar length was observed in one DNA sample for calli regenerated after complete procedure of cryopreservation in liquid nitrogen (−196°C). However, in samples of calli cultured in vitro for two and four weeks after any type of treatments, the amplicon spectra exhibited no difference from those of starting materials. The amplicon profiles of plants regenerated from calli after successive steps of cryopreservation were also identical to the profiles of the mother plants.
Russian Journal of Plant Physiology – Springer Journals
Published: May 3, 2011
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