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Transcription profiling of GA5/DREB1A double-overexpressing Arabidopsis lines.

ABSTRACT: To improve both drought stress tolerance and growth of plants, we generated transgenic Arabidopsis plants that overexpress DREB1A and GA5. It was reported that DREB1A improves drought stress tolerance in various crops but causes dwarfism, and GA5 encodes a GA synthetic enzyme which enhances plant growth. We performed microarray experiments using a single overexpressor of GA5 and the double overexpressor of DREB1A and GA5 to study the potential interactions of the gene networks regulated by the two factors in the double overexpressor.

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Junya Mizoi

PROVIDER: E-MTAB-6550 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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A gene-stacking approach to overcome the trade-off between drought stress tolerance and growth in Arabidopsis.

Kudo Madoka M Kidokoro Satoshi S Yoshida Takuya T Mizoi Junya J Kojima Mikiko M Takebayashi Yumiko Y Sakakibara Hitoshi H Fernie Alisdair R AR Shinozaki Kazuo K Yamaguchi-Shinozaki Kazuko K

The Plant journal : for cell and molecular biology 20181112 2

The molecular breeding of drought stress-tolerant crops is imperative for stable food and biomass production. However, a trade-off exists between plant growth and drought stress tolerance. Many drought stress-tolerant plants overexpressing stress-inducible genes, such as DEHYDRATION-RESPONSIVE ELEMENT-BINDING PROTEIN 1A (DREB1A), show severe growth retardation. Here, we demonstrate that the growth of DREB1A-overexpressing Arabidopsis plants could be improved by co-expressing growth-enhancing gen ...[more]

PMID: 30285298

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