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. 2020 Mar 21;125(6):905–923. doi: 10.1093/aob/mcaa022

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© The Author(s) 2020. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

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Fig. 1. — Visualization of auxin response maxima in the nodule primordia and nodules of composite SGE pea wild-type plants containing the DR5::GFP-NLS construct. (A, B) Nodule primordium. (C) Two-week-old nodule. (D–F) Three-week-old nodules: (D) general view; (E, F) meristem. (A, C, D, E) Merge of differential interference contrast and green channel used for the GFP-NLS signal in green. (B, F) The heatmap shows colour-coded fluorescence signal intensities for the green signal channel; the quantification scale is the same for B and F images. I, meristem zone; II, infection zone; III, nitrogen fixation zone; arrows indicate vascular bundles. Scale bars are 50 µm (A, B, E, F) and 100 µm (C, D).