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

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 differen...

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Autores principales:	Susanna Sauret-Güeto, Katharina Schiessl, Andrew Bangham, Robert Sablowski, Enrico Coen
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Biology (General) QH301-705.5
Acceso en línea:	https://doaj.org/article/684e01bb14e44e1eb6c74982eeeb7c52
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spelling	oai:doaj.org-article:684e01bb14e44e1eb6c74982eeeb7c522021-11-18T05:37:07ZJAGGED controls Arabidopsis petal growth and shape by interacting with a divergent polarity field.1544-91731545-788510.1371/journal.pbio.1001550https://doaj.org/article/684e01bb14e44e1eb6c74982eeeb7c522013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23653565/pdf/?tool=EBIhttps://doaj.org/toc/1544-9173https://doaj.org/toc/1545-7885A 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 polarity markers, which show a divergent pattern. We also show that JAGGED (JAG) has a key role in promoting distal enhancement of growth rates and influences the extent of the divergent polarity field. Furthermore, we reveal links between the polarity field and auxin function: auxin-responsive markers such as DR5 have a broader distribution along the distal petal margin, consistent with the broad distal organiser of polarity, and PETAL LOSS (PTL), which has been implicated in the control of auxin dynamics during petal initiation, is directly repressed by JAG. By comparing these results with those from studies on leaf development, we show how simple modifications of an underlying developmental system may generate distinct forms, providing flexibility for the evolution of different organ functions.Susanna Sauret-GüetoKatharina SchiesslAndrew BanghamRobert SablowskiEnrico CoenPublic Library of Science (PLoS)articleBiology (General)QH301-705.5ENPLoS Biology, Vol 11, Iss 4, p e1001550 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biology (General) QH301-705.5
spellingShingle	Biology (General) QH301-705.5 Susanna Sauret-Güeto Katharina Schiessl Andrew Bangham Robert Sablowski Enrico Coen JAGGED controls Arabidopsis petal growth and shape by interacting with a divergent polarity field.
description	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 polarity markers, which show a divergent pattern. We also show that JAGGED (JAG) has a key role in promoting distal enhancement of growth rates and influences the extent of the divergent polarity field. Furthermore, we reveal links between the polarity field and auxin function: auxin-responsive markers such as DR5 have a broader distribution along the distal petal margin, consistent with the broad distal organiser of polarity, and PETAL LOSS (PTL), which has been implicated in the control of auxin dynamics during petal initiation, is directly repressed by JAG. By comparing these results with those from studies on leaf development, we show how simple modifications of an underlying developmental system may generate distinct forms, providing flexibility for the evolution of different organ functions.
format	article
author	Susanna Sauret-Güeto Katharina Schiessl Andrew Bangham Robert Sablowski Enrico Coen
author_facet	Susanna Sauret-Güeto Katharina Schiessl Andrew Bangham Robert Sablowski Enrico Coen
author_sort	Susanna Sauret-Güeto
title	JAGGED controls Arabidopsis petal growth and shape by interacting with a divergent polarity field.
title_short	JAGGED controls Arabidopsis petal growth and shape by interacting with a divergent polarity field.
title_full	JAGGED controls Arabidopsis petal growth and shape by interacting with a divergent polarity field.
title_fullStr	JAGGED controls Arabidopsis petal growth and shape by interacting with a divergent polarity field.
title_full_unstemmed	JAGGED controls Arabidopsis petal growth and shape by interacting with a divergent polarity field.
title_sort	jagged controls arabidopsis petal growth and shape by interacting with a divergent polarity field.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/684e01bb14e44e1eb6c74982eeeb7c52
work_keys_str_mv	AT susannasauretgueto jaggedcontrolsarabidopsispetalgrowthandshapebyinteractingwithadivergentpolarityfield AT katharinaschiessl jaggedcontrolsarabidopsispetalgrowthandshapebyinteractingwithadivergentpolarityfield AT andrewbangham jaggedcontrolsarabidopsispetalgrowthandshapebyinteractingwithadivergentpolarityfield AT robertsablowski jaggedcontrolsarabidopsispetalgrowthandshapebyinteractingwithadivergentpolarityfield AT enricocoen jaggedcontrolsarabidopsispetalgrowthandshapebyinteractingwithadivergentpolarityfield
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JAGGED controls Arabidopsis petal growth and shape by interacting with a divergent polarity field.

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