00928naa a2200193 a 450000100080000000500110000800800410001902200140006010000200007424501260009426000090022030000160022952003170024565000190056265000220058170000250060370000290062877300770065720374322016-03-17       2013    bl uuuu     u00u1 u    #d  a1547-43211 aGARDINGO, J. R.  aAmplification of heterochromatic knob size in callus culture by unequal sister chromatid Exchange.h[electronic resource]  c2013  ap. 26.cil.  aTissue culture and in vitro plant regeneration systems have provided alternative means for mass proliferation of several plant species. Several reports have given evidence that successful plant regeneration from maize embryo-derived callus cultures is genotype dependent (see Fluminhan and Aguiar-Perecin, 1998).  aTissue culture  aCultura de tecido1 aSEREJO, J. A. dos S.1 aAGUIAR-PERECIN, M. L. R.  tMaize Genetics Cooperation Newslettergv. 8,Piracicaba, SP, Esalq, 2013.