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TL;DR
This study identified a drought-tolerant heterosis-related gene, SiMYBS3, from foxtail millet transcriptome data. Overexpressing this gene in Arabidopsis plants conferred drought tolerance and insensitivity to the plant hormone ABA.
International Journal of Molecular Sciences · 13 authors, 2 centres
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This study identified a drought-tolerant heterosis-related gene, SiMYBS3, from foxtail millet transcriptome data. Overexpressing this gene in Arabidopsis plants conferred drought tolerance and insensitivity to the plant hormone ABA.
One gene, Seita.9G321800, was found to encode a MYB transcription factor, SiMYBS3, which was upregulated after drought stress. The gene was then overexpressed in Arabidopsis thaliana. Phenotypic experiments showed the transgenic plants had drought tolerance and insensitivity to abscisic acid (ABA) compared to wild-type. The study provides a candidate gene for enhancing drought resistance in crops through breeding.