RT Journal Article SR Electronic T1 ANTHOCYANINLESS2, a Homeobox Gene Affecting Anthocyanin Distribution and Root Development in Arabidopsis JF The Plant Cell JO Plant Cell FD American Society of Plant Biologists SP 1217 OP 1226 DO 10.1105/tpc.11.7.1217 VO 11 IS 7 A1 Kubo, Hiroyoshi A1 Peeters, Anton J. M. A1 Aarts, Mark G. M. A1 Pereira, Andy A1 Koornneef, Maarten YR 1999 UL http://www.plantcell.org/content/11/7/1217.abstract AB The ANTHOCYANINLESS2 (ANL2) gene was isolated from Arabidopsis by using the maize Enhancer–Inhibitor transposon tagging system. Sequencing of the ANL2 gene showed that it encodes a homeodomain protein belonging to the HD–GLABRA2 group. As we report here, this homeobox gene is involved in the accumulation of anthocyanin and in root development. Histological observations of the anl2 mutant revealed that the accumulation of anthocyanin was greatly suppressed in subepidermal cells but only slightly reduced in epidermal cells. Furthermore, the primary roots of the anl2 mutant showed an aberrant cellular organization. We discuss a possible role of ANL2 in the accumulation of anthocyanin and cellular organization of the primary root.