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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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2013-01-01
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| Series: | PLoS Biology |
| Online Access: | https://doi.org/10.1371/journal.pbio.1001550 |
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| 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 |
| collection | DOAJ |
| 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 |
| id | doaj-art-684e01bb14e44e1eb6c74982eeeb7c52 |
| institution | OA Journals |
| issn | 1544-9173 1545-7885 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS Biology |
| spelling | doaj-art-684e01bb14e44e1eb6c74982eeeb7c522025-08-20T02:34:10ZengPublic Library of Science (PLoS)PLoS Biology1544-91731545-78852013-01-01114e100155010.1371/journal.pbio.1001550JAGGED controls Arabidopsis petal growth and shape by interacting with a divergent polarity field.Susanna Sauret-GüetoKatharina SchiesslAndrew BanghamRobert SablowskiEnrico CoenA 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.https://doi.org/10.1371/journal.pbio.1001550 |
| spellingShingle | 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. PLoS Biology |
| title | 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_short | 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 |
| url | https://doi.org/10.1371/journal.pbio.1001550 |
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