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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 (https://creativecommons.org/licenses/by/4.0/).
Collinearity analysis of ARFs between P. trichocarpa, P. yunnanensis, and A. thaliana. Chr represents chromosome-scale scaffolds. The putative collinear genes in P. yunnanensis and the other two species are marked in gray, while the syntonic ARF gene pairs are marked in red.