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In silico search for drought-responsive genes in plants on the basis of scientific data: case study on poplar roots

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Kopecky D., Matusikova I., Sziderics A. H., Trognitz F., Spie N., Stierschneider M., Fluch S.

Acta Physiologiae Plantarum

2013

tom 35

nr 06

Despite of a number of studies on the genetic nature of plant adaptation to drought stress there is still no conclusion on the core mechanism of defense. Extraction of knowledge gained from experiments on different plant species under different conditions and subsequent interpolation thus appears to be a challenge. Here we applied a sequence similarity-based approach to identify computationally the components of defense against water deprivation. The prediction in silico was based on the available scientific data. We identified a subset of defense gene candidates, of which 2 % were experimentally proven to be drought-responsive. The transcriptomic analysis of drought-stressed poplar roots generated data that confirm and/or complement previous reports on plant responses to drought. On the other hand, we observed suppression of genes involved in antioxidative defense that seems to contradict many foregoing observations. The results, advantages and possible drawbacks of our prediction approach are discussed in light of experimental data.

Ograniczanie wyników

1 Acta Physiologiae Plantarum

1 Fluch S.

1 Kopecky D.

1 Matusikova I.

1 Spie N.

1 Stierschneider M.

1 Sziderics A. H.

1 Trognitz F.

1 2013

Wyniki wyszukiwania

In silico search for drought-responsive genes in plants on the basis of scientific data: case study on poplar roots