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. 2023 Aug 23;620(7976):1018–1024. doi: 10.1038/s41586-023-06442-5

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© The Author(s) 2023, corrected publication 2023

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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 3 — a, Expected expansion of the symbiont population in corals cultured in nutrient-replete conditions based on cell division (mitotic index (+MI)) and expulsion rates over 203 days, the observed increase in symbiont numbers and a model reproducing the observed increases in numbers based on the continuous removal of symbionts by the host. b, Expected increase, and observed and modelled decrease in symbiont numbers in corals cultured under nutrient-limited conditions. c,d, Correlation between the number of missing symbionts and the growth of corals measured as area increase under nutrient-replete conditions over 203 days (c) and nutrient-limited conditions over 84 days (d). a–d, Points represent normalized average ± s.e.m. for four coral species (A. polystoma, S. pistillata, M. capricornis and M. foliosa). The average for each species represents 6–10 colonies. R² values are shown. Correlation between variables of each fit in c,d are significant (P < 0.0001).

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