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ALT At the end of male meiosis in the anther, plants produce 4 haploid (n) cells that are held together in a tetrad structure surrounded by a callose wall. Confocal image coloured by SR2200 stain in blue, contrasted with green autofluorescence signal. In the current issue, Schindfessel et al. analyse how heat stress interferes with normal meiotic cell cycle progression and leads to the production of diploid (2n) male gametes and polyploid offspring in the natural Arabidopsis thaliana population. They uncover a role for TARDY ASYNCHRONOUS MEIOSIS in regulating the translation of major cell cycle genes at high temperature. Image credit: Cédric Schindfessel.

ALT Severin Einspanier (he/him) is the First Author of Co-option of transcription factors drives evolution of quantitative disease resistance against a necrotrophic pathogen published 30 Septmber 2025. He is a PostDoc at Kiel University, Institute of Phytopathology and Plant Protection. Education background includes 2025 Dr. agr. sc. at Kiel University; 2021 MSc in Agriculutral Sciences at Technical University of Munich; 2019 BSc at Technical University of Munich. Research interests include Plant disease resistance, epidemiology, transcriptomics, crop wild relatives, systems science. Personal interests include Gardening, climbing, cycling, playing the cello.