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. 2020 Jul 15;184(2):1004–1023. doi: 10.1104/pp.19.01420

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This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 1. — Phylogeny reconstruction of the LYK-I orthogroup, containing known CO and LCO receptors, based on 127 sequences from 47 species. Two main subgroups are recognized in eudicots, LYK-Ia (blue) and LYK-Ib (green). Note the presence of both variants in Aquilegia coeralia, a basal eudicot in the Ranunculales. A subset of proteins is unresolved. P. andersonii proteins are in boldface. Genuses Parasponia and Trema LYK3.1 and LYK3.2 represent protein variants of LYK3. Deduced pseudoproteins are depicted in gray/strikethrough. Proteins with known functions in nodulation, mycorrhization, and/or chitin innate immune signaling are indicated. Bootstrap values indicate IQ-tree UF-bootstrap support%; values >98 are not shown. The scale bar represents substitutions per site. A complete list of species and accession numbers can be found in Supplemental Data Set S1.