bioRxivPlant BiologyPreprint
Plant aquaporins: the origin of NIPs
Abstract
Many of the aquaporin genes in Cyanobacteria belong to the AqpN-clade. This clade was also the cradle of plant NIPs (nodulin-26 like intrinsic proteins) whose members are transporters for glycerol and several hydroxylated metalloids. The superphylum of Archaeplastida acquired the primordial NIP-gene most likely from the cyanobacterium that, some 1500 million years ago, became the ancestor of all plastids.
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