Statistical Parameters Reflecting Morphogenetic Capacity of Soft Spring Wheat Calluses

Statistical Parameters Reflecting Morphogenetic Capacity of Soft Spring Wheat Calluses Callus cultures of soft spring wheat were subcultured without separation into explants to follow the line “one excised embryo–one callus”. This approach revealed the following statistical correlations. Within every cultivar of Triticum aestivum L. and within a row of cultivars arranged in ascending order according to the frequency of embryogenic callus formation, positive correlations (at P = 95) were found between the proliferative activity of callus cells and the frequency of embryogenic callus formation. A reliable intraspecies correlation (significant at P = 95) between multiple regenerations of plants from calluses and the tillering trait (bushiness) of donor plants was also found. We assessed the importance of various statistical parameters of callus cultures for preliminary estimation of morphogenesis efficiency at early stages of culturing. Frequencies of callusogenesis and the growth curves for randomly selected calluses turned out to be noninformative characteristics, unless the morphogenetic activity of calluses was taken into account. The following statistical parameters were found to correlate with the morphogenetic capacity of wheat calluses: gradually increasing coefficients of variation in fresh weight of primary calluses, a larger callus size, and higher fresh weight gain in potentially morphogenetic calluses. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Statistical Parameters Reflecting Morphogenetic Capacity of Soft Spring Wheat Calluses

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2004 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1023/B:RUPP.0000019223.23756.71
Publisher site
See Article on Publisher Site

Abstract

Callus cultures of soft spring wheat were subcultured without separation into explants to follow the line “one excised embryo–one callus”. This approach revealed the following statistical correlations. Within every cultivar of Triticum aestivum L. and within a row of cultivars arranged in ascending order according to the frequency of embryogenic callus formation, positive correlations (at P = 95) were found between the proliferative activity of callus cells and the frequency of embryogenic callus formation. A reliable intraspecies correlation (significant at P = 95) between multiple regenerations of plants from calluses and the tillering trait (bushiness) of donor plants was also found. We assessed the importance of various statistical parameters of callus cultures for preliminary estimation of morphogenesis efficiency at early stages of culturing. Frequencies of callusogenesis and the growth curves for randomly selected calluses turned out to be noninformative characteristics, unless the morphogenetic activity of calluses was taken into account. The following statistical parameters were found to correlate with the morphogenetic capacity of wheat calluses: gradually increasing coefficients of variation in fresh weight of primary calluses, a larger callus size, and higher fresh weight gain in potentially morphogenetic calluses.

Journal

Russian Journal of Plant PhysiologySpringer Journals

Published: Oct 18, 2004

References

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