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Non-coding DNA sequences found in all plants may have undiscovered roles in basic plant development and response to the environment.
DNA encodes the information necessary to make all the proteins in a cell, but the vast majority of the DNA in a cell is non-coding DNA, in the past sometimes referred to as "junk" DNA. Recent research paper published in The Plant Cell has identified non-coding DNA sequences that are found in nearly all plants and appear to have roles in basic processes such as tissue and organ development, response to hormones, and regulation of gene expression.
