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. 2022 Mar 22;13:1610. doi: 10.1038/s41467-022-29282-9

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© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 3 — A The frequency of three topologies (q1–q3) around two short internal branches of ASTRAL species tree in the 69-taxon datasets. Each short internal branch with four neighboring branches leads to three possible topologies. B Phylogenetic relationships of 7-taxon(I) and 7-taxon(II) datasets based on the multispecies coalescent model. Red branches are the short branches. C Comparison of simulated frequencies of gene tree topologies with the corresponding observed frequencies. Bryo Bryopsidales, Chlo Chlorophyceae, Ulvo Ulvophyceae s.s.