JAGGED controls Arabidopsis petal growth and shape by interacting with a divergent polarity field.

ABSTRACT: A flowering plant generates many different organs such as leaves, petals, and stamens, each with a particular function and shape. These types of organ are thought to represent variations on a common underlying developmental program. However, it is unclear how this program is modulated under different selective constraints to generate the diversity of forms observed. Here we address this problem by analysing the development of Arabidopsis petals and comparing the results to models of leaf development. We show that petal development involves a divergent polarity field with growth rates perpendicular to local polarity increasing towards the distal end of the petal. The hypothesis is supported by the observed pattern of clones induced at various stages of development and by analysis of polarit

SUBMITTER: Sauret-Gueto S 

PROVIDER: S-EPMC3641185 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature