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. 2018 Jul 24;35(10):2454–2462. doi: 10.1093/molbev/msy146

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© The Author(s) 2018. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Fig. 2. — Structural divergence of the CTDs between NRPE1 and NRPF1 paralogs. (A) Diagram of NRPE1 and NRPF1 from B. distachyon. BdNRPE1 retains a canonical Ago-binding platform between the catalytic A–H domains (blue square) and the DeCL domain (green square). The Ago-binding platform contains many Ago hooks (red ovals). In contrast, BdNRPF1 has a shorter CTD that lacks Ago hook motifs. (B and C) Poaceae NRPE1 and non-Poaceae NRPE1 CTDs are similar in length and number of Ago hooks, while NRPF1 CTDs are shorter and contain fewer Ago hooks. Data points for 31 non-Poaceae, 14 Poaceae NRPE1, and 11 Poaceae NRPF1 are shown as colored circles; boxes represent the interquartile range and the mean is shown by a black bar.