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Bioinformatics Analysis of Phylogeny and Transcription of TAA/YUC Auxin Biosynthetic Genes
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Bioinformatics Analysis of Phylogeny and Transcription of TAA/YUC Auxin Biosynthetic Genes
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Journal Article
Bioinformatics Analysis of Phylogeny and Transcription of TAA/YUC Auxin Biosynthetic Genes
2017
Overview
Auxin is a main plant growth hormone crucial in a multitude of developmental processes in plants. Auxin biosynthesis via the tryptophan aminotransferase of arabidopsis (TAA)/YUCCA (YUC) route involving tryptophan aminotransferases and YUC flavin-dependent monooxygenases that produce the auxin indole-3-acetic acid (IAA) from tryptophan is currently the most researched auxin biosynthetic pathway. Previous data showed that, in maize and arabidopsis, TAA/YUC-dependent auxin biosynthesis can be detected in endoplasmic reticulum (ER) microsomal fractions, and a subset of auxin biosynthetic proteins are localized to the ER, mainly due to transmembrane domains (TMD). The phylogeny presented here for TAA/TAR (tryptophan aminotransferase related) and YUC proteins analyses phylogenetic groups as well as transmembrane domains for ER-membrane localisation. In addition, RNAseq datasets are analysed for transcript abundance of YUC and TAA/TAR proteins in Arabidopsis thaliana. We show that ER membrane localisation for TAA/YUC proteins involved in auxin biosynthesis is already present early on in the evolution of mosses and club mosses. ER membrane anchored YUC proteins can mainly be found in roots, while cytosolic proteins are more abundant in the shoot. The distribution between the different phylogenetic classes in root and shoot may well originate from gene duplications, and the phylogenetic groups detected also overlap with the biological function.
Publisher
MDPI AG,MDPI
Subject
/ Arabidopsis Proteins - classification
/ Arabidopsis Proteins - genetics
/ Arabidopsis Proteins - metabolism
/ Biosynthetic Pathways - genetics
/ Computational Biology - methods
/ Endoplasmic Reticulum - enzymology
/ Endoplasmic Reticulum - genetics
/ Endoplasmic Reticulum - metabolism
/ Gene Expression Regulation, Plant
/ Indoleacetic Acids - metabolism
/ Proteins
