Exploiting SNPs for biallelic CRISPR mutations in the outcrossing woody perennial Populus reveals 4‐coumarate:CoA ligase specificity and redundancy. Issue 2 (13th May 2015) - Zhou, Xiaohong; Jacobs, Thomas B.; Xue, Liang‐Jiao; Harding, Scott A.; Tsai, Chung‐Jui