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. 2022 Jul 1;5:650. doi: 10.1038/s42003-022-03627-y

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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. 7 — a The calculation of distance between a meristem notch (or the location where the meristem notch will be formed) (point a) and the center of an archegonium (point b) in one representative image. The image in (a) is the part of one optical section of the sample shown in Fig. 2m. Scale bar: 50 μm. b–g Dynamic distances between archegonia and meristem notches. Y axis: Distance between a meristem notch and an archegonium. X axis: six consecutive time points starting from initiation (shown as 0 h in the graphs) of the archegonium. The distance in b and c was calculated based on the confocal images of the gametophyte shown in Fig. 2, and the first and second archegonia started to initiate at 54 h and 84 h, respectively. The distance in d and e was calculated based on the confocal images of the gametophyte shown in Supplementary Fig. 4, and the first and second archegonia started to initiate at 54 h and 90 h, respectively. The distance in f and g was calculated based on the confocal images of the gametophyte shown in Supplementary Fig. 5, and the first and second archegonia started to initiate at 60 h and 84 h, respectively. The source data for (b–g) are included in Supplementary Data 4.