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. 2022 Jul 14;10:930355. doi: 10.3389/fcell.2022.930355

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Copyright © 2022 Langlois-Lemay and D’Amours.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Visual representation of sporulation and ascus formation in budding yeast. (A) In response to environmental stressors, diploid yeast cells initiate the sporulation program. (B) Completion of meiosis I nuclear division. (C) After the second round of chromosome segregation, the prospore membrane (shown in orange) forms and expands around each duplicated SPB (shown in blue). (D) The membrane grows and encapsulates each haploid nucleus in the tetrad. (E) Spore wall assembly begins and the remnants of the mother cell breaks down.