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A curated list of genes that control elemental accumulation in plants.

By Lauren Whitt, Felipe K. Ricachenevsky, Greg Ziegler, Stephan Clemens, Elsbeth Lewis Walker, Frans JM Maathuis, Philip Kear, Ivan Baxter

Posted 31 Oct 2018
bioRxiv DOI: 10.1101/456384

Understanding the mechanisms underlying plants' adaptation to their environment will require knowledge of the genes and alleles underlying elemental composition. Modern genetics is capable of quickly, and cheaply indicating which regions of DNA are associated with particular phenotypes in question, but most genes remain poorly annotated, hindering the identification of candidate genes. To help identify candidate genes underlying elemental accumulations, we have created the known ionome gene (KIG) list: a curated collection of genes experimentally shown to change uptake, accumulation, and distribution of elements. We have also created an automated computational pipeline to generate lists of KIG orthologs in other plant species using the PhytoMine database. The current version of KIG consists of 176 known genes covering 5 species, 23 elements and their 1588 orthologs in 10 species. Analysis of the known genes demonstrated that most were identified in the model plant Arabidopsis thaliana, and that transporter coding genes and genes altering the accumulation of iron and zinc are overrepresented in the current list. ### Competing Interest Statement The authors have declared no competing interest.

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