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. 2020 Jun 10;125(4):212–226. doi: 10.1038/s41437-020-0328-6

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© The Author(s) 2020

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Fig. 3 — The four homologous chromosomes in an autotetraploid genome are shown in red, green, blue and black. The minimum number of required crossovers are marked with a blue X and solid circles depict centromeres.