AGAMOUS-LIKE24 and SHORT VEGETATIVE PHASE determine floral meristem identity in Arabidopsis
Articolo
Data di Pubblicazione:
2008
Citazione:
AGAMOUS-LIKE24 and SHORT VEGETATIVE PHASE
determine floral meristem identity in Arabidopsis / V. Gregis, A.D.A. Sessa, L. Colombo, M. Kater. - In: PLANT JOURNAL. - ISSN 0960-7412. - 56:6(2008), pp. 891-902. [10.1111/j.1365-313X.2008.03648.x]
Abstract:
The formation of flowers starts when floral meristems develop on the flanks of the inflorescence meristem. In
Arabidopsis the identity of floral meristems is promoted and maintained by APETALA1 (AP1) and
CAULIFLOWER (CAL). In the ap1 cal double mutant the meristems that develop on the flanks of the
inflorescence meristem are unable to establish floral meristem identity and develop as inflorescence
meristems on which new inflorescence meristems subsequently proliferate. We demonstrate in contrast to
previous models that AGAMOUS-LIKE 24 (AGL24) and SHORT VEGETATIVE PHASE (SVP) are also floral
meristem identity genes since the ap1-10 agl24-2 svp-41 triple mutant continuously produces inflorescence
meristems in place of flowers. Furthermore, our results explain how AP1 switches from a floral meristem
identity factor to a component that controls floral organ identity.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Floral meristem identity; Flower development; Gene regulation; MADS-box
Elenco autori:
V. Gregis, A.D.A. Sessa, L. Colombo, M. Kater
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