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. 2017 Nov 30;8(12):359. doi: 10.3390/genes8120359

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© 2017 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Genes involved in IAA and GA biosynthesis pathways in willow. (a) Pathway of IAA biosynthesis. Green arrows, tryptophan synthetic pathway; blue and red arrows, steps for which gene and enzymatic function are known in the tryptophan-dependent IAA biosynthetic pathway; letters in italics, genes involved in the conversion process. (b) Heat map of genes involved in IAA biosynthesis during development. Scaled log₂ expression values are shown from green to red, indicating low to high expression. TAA1, L-tryptophan-pyruvate aminotransferase; AAO1_2, indole-3-acetaldehyde oxidase; YUCCA, indole-3-pyruvate monooxygenase; CYP79B2, tryptophan N-monooxygenase. L, leaf; TB, top branch; BB, basal branch; SM, S. matsudana; SMP, S. matsudana var. pseudo-matsudana. (c) Gibberellin biosynthesis pathways. (d) Expression patterns of genes involved in gibberellin biosynthesis during development.