Sequences of Arabidopsis LOX proteins were obtained from the Arabidopsis Information Resource (TAIR, http://www.Arabidopsis.org/, release 10.0). Sequences of Cucumis sativus, Glycine max, Hordeum vulgare, Lens culinaris, Lycopersicon esculentum, Nicotiana attenuata, Nicotiana tabacum, Oryza sativa, Pisum sativum, Phaseolus vulgaris, Solanum tuberosum, Zea mays, Vitis vinifera, Actindia deliciosa, and Triticum aestivum were downloaded from NCBI (http://www.ncbi.nlm.nih.gov/). Sequences of Populus were downloaded from Phytozome (http://www.phytozome.net/). Local Blast searching was performed using Arabidopsis LOX proteins as queries for the identification of LOX genes from poplar. For the misannotated genes, manual reannotation was performed using the online web server Pfam (http://pfam.sanger.ac.uk/)[26 (link)]. All of the sequences were further manually analyzed to confirm the presence of LOX domain and PLAT/LH2 (polycystin-1, lipoxygenase, α-toxin domain or the lipoxygenase homology) domain using the InterProScan program (http://www.ebi.ac.uk/Tools/InterProScan/) [27 (link)].
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