Residual Variation of Morphochronometric Traits in Hybrid Tomatoes: Analysis and Possible Mechanism of Emergence

Residual Variation of Morphochronometric Traits in Hybrid Tomatoes: Analysis and Possible... Different expressivity of several morphometric and chronometric traits in tomato plants having similar genetic composition in the identical environmental conditions manifested as genotypic residual variation. Using correlation and artificial neural network analyses, we determined the relationship between productivity and other morphochronometric parameters. It was shown that chronology of the development may be important for the determination of productivity. Random epigenetic modifications independent of environmental factors are considered to underlie the residual variation. The different trait expression in different plants may lead to higher phenotypic diversity of a population characterized by low gene polymorphism. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Residual Variation of Morphochronometric Traits in Hybrid Tomatoes: Analysis and Possible Mechanism of Emergence

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2002 by MAIK “Nauka/Interperiodica”
Subject
Biomedicine; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1023/A:1014846516537
Publisher site
See Article on Publisher Site

Abstract

Different expressivity of several morphometric and chronometric traits in tomato plants having similar genetic composition in the identical environmental conditions manifested as genotypic residual variation. Using correlation and artificial neural network analyses, we determined the relationship between productivity and other morphochronometric parameters. It was shown that chronology of the development may be important for the determination of productivity. Random epigenetic modifications independent of environmental factors are considered to underlie the residual variation. The different trait expression in different plants may lead to higher phenotypic diversity of a population characterized by low gene polymorphism.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Oct 13, 2004

References

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