ANIMALS VERSUS PLANTS. “While studies in animal systems show that a gain of new expression patterns is rare relative to changes in the timing or level of gene expression, the expansion or restriction of spatial expression domains, or the loss of expression features, gene duplication and rampant polyploidy that are inherent to plants enables the possibility for a gain of new expression to likewise provide a considerable source of developmental variation.”
https://lnkd.in/dD4GcAS