... this response is coordinated with the reproductive phase is unclear. We demonstrate that microRNA (miRNA) control of APETALA2 ( AP2 ) is required for rapid, complete elongation of stem internodes in barley, especially of the final ‘peduncle’ internode directly underneath the inflorescence. Disrupted miR172...

... are controlled is not complete. Here, we report that the A-class organ identity gene APETALA2 ( AP2 ), which is known to repress the C-class gene AGAMOUS , also regulates the expression borders of the B-class genes APETALA3 and PISTILLATA , and the E-class gene SEPALLATA3 . We show that AP2 represses its target...

... in a combinatorial manner to control proper floral organ identity. The A-class gene APETALA2 ( AP2 ) promotes sepal and petal identities in whorls 1 and 2 and restricts the expression of the C-class gene AGAMOUS ( AG ) from whorls 1 and 2. However, it is unknown how AP2 performs these functions. Unlike the other...

.... 22 9 2011 © 2011. APETALA2 Fruit Replum Valve margin Lignification Growth Fruit have evolved a complex tissue organization that protects, nourishes and ultimately disperses the seeds at maturity ( Ferrándiz et al., 1999 ; Ferrándiz, 2002 ; Balanzá et al., 2006...

...Heike Wollmann; Erica Mica; Marco Todesco; Jeff A. Long; Detlef Weigel The ABC model of flower development explains how three classes of homeotic genes confer identity to the four types of floral organs. In Arabidopsis thaliana, APETALA2 ( AP2 ) and AGAMOUS ( AG ) represent A- and C-class genes...

... and genetic analyses, we propose that SEUSS encodes a regulator of AGAMOUS and functions together with LEUNIG . Table 1. Table 2. *Author for correspondence (e-mail: [email protected] ) 12 10 2001 © 2002. 2002 LEUNIG AGAMOUS APETALA2 Co-repressor Flower...