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Transcription activator-like effectors contribute to virulence of the Xanthomonas strain responsible for bacterial blight in cotton. Here Cox et al. show that the Xanthomonas Avrb6 effector induces expression of the cotton SWEET10 sugar transporter and that this induction promotes disease.
Iron is an essential micronutrient for plants and a lack of iron availability limits crop yield in many parts of the world. Here the authors show that natural variation in root growth of Arabidopsis plants under iron deficiency can be caused by allelic variation at the FRO2 locus.
De-domestication is the process by which cultivated plants adopt characteristics similar to that of their wild predecessors. Here Qiu et al. re-sequence de-domesticated weedy rice and matched cultivated varieties and identify genetic variants indicative of convergent evolution across multiple de-domestication events.
A high-quality reference for the sunflower genome (Helianthus annuus L.) and analysis of gene networks involved in flowering time and oil metabolism provide a basis for nutritional exploitation and analyses of adaptation to climate change.
Spinach is an economically important vegetable crop but previous genomic resources were of limited use for comparative and functional analyses. Here, Xu et al. present a high quality draft spinach genome and transcriptome data for multiple Spinacia accessions providing insight into Caryophyllales genome evolution.
Plants precisely express some immune regulators by controlling the translation of messenger RNA into protein. This insight enabled a disease-resistant rice to be engineered without compromised productivity. See Letters p.487 & p.491