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. 2013 Jun 18;4:186. doi: 10.3389/fpls.2013.00186

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Copyright © Jung and McCouch.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in other forums, provided the original authors and source are credited and subject to any copyright notices concerning any third-party graphics etc.

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Hormonal and genetic control of crown root formation in rice. Crown root initiation in rice is promoted by auxin, and regulated by the inhibitory influence of cytokinin. Arrows represent the positive regulatory action of one element of the network on another one. A line ending with a bar represents the negative regulatory action of one element of the network on another one. ARF, Auxin Response Factor; ARL, ARR, type-A RESPONSE REGULATOR; AUX/IAA, AUXIN/INDOLE-3-ACETIC ACID; CRL4, CROWN ROOTLESS4; GNOM1, GTP:GDP ANTIPORTER/PROTEIN HOMODIMERIZATION1; PIN1, PIN-FORMED1; WOX11, WUSHEL-Related Homeobox 1 (Coudert et al., 2010).