reviewThe Plant CellDec 1, 2020BRONZE OA

Polyploidy: an evolutionary and ecological force in stressful times

Nanjing Agricultural University · VIB-UGent Center for Plant Systems Biology · +4 more institutions

PubMed
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Abstract

Polyploidy has been hypothesized to be both an evolutionary dead-end and a source for evolutionary innovation and species diversification. Although polyploid organisms, especially plants, abound, the apparent nonrandom long-term establishment of genome duplications suggests a link with environmental conditions. Whole-genome duplications seem to correlate with periods of extinction or global change, while polyploids often thrive in harsh or disturbed environments. Evidence is also accumulating that biotic interactions, for instance, with pathogens or mutualists, affect polyploids differently than nonpolyploids. Here, we review recent findings and insights on the effect of both abiotic and biotic stress on…

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