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Robust organ size r...
Robust organ size requires robust timing of initiation orchestrated by focused auxin and cytokinin signalling
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Zhu, Mingyuan (author)
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Chen, Weiwei (author)
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Mirabet, Vincent (author)
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Hong, Lilan (author)
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Bovio, Simone (author)
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Strauss, Soeren (author)
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Schwarz, Erich M. (author)
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Tsugawa, Satoru (author)
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Wang, Zhou (author)
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Smith, Richard S. (author)
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- Li, Chun-Biu (author)
- Stockholms universitet,Matematiska institutionen
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Hamant, Olivier (author)
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Boudaoud, Arezki (author)
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Roeder, Adrienne H. K. (author)
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(creator_code:org_t)
- 2020-05-25
- 2020
- English.
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In: Nature Plants. - : Springer Science and Business Media LLC. - 2055-0278. ; 6, s. 686-698
- Related links:
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https://www.ncbi.nlm...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- The shape of plant organs shows low variability. Sepals of the same age look the same. Here the authors identify one transcription factor (DRMY1) crucial for sepal size reproducibility, and its effect on initiation timing and growth of the organ. Organ size and shape are precisely regulated to ensure proper function. The four sepals in each Arabidopsis thaliana flower must maintain the same size throughout their growth to continuously enclose and protect the developing bud. Here we show that DEVELOPMENT RELATED MYB-LIKE 1 (DRMY1) is required for both timing of organ initiation and proper growth, leading to robust sepal size in Arabidopsis. Within each drmy1 flower, the initiation of some sepals is variably delayed. Late-initiating sepals in drmy1 mutants remain smaller throughout development, resulting in variability in sepal size. DRMY1 focuses the spatiotemporal signalling patterns of the plant hormones auxin and cytokinin, which jointly control the timing of sepal initiation. Our findings demonstrate that timing of organ initiation, together with growth and maturation, contribute to robust organ size.
Subject headings
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Zhu, Mingyuan
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Chen, Weiwei
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Mirabet, Vincent
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Hong, Lilan
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Bovio, Simone
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Strauss, Soeren
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show more...
-
Schwarz, Erich M ...
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Tsugawa, Satoru
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Wang, Zhou
-
Smith, Richard S ...
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Li, Chun-Biu
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Hamant, Olivier
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Boudaoud, Arezki
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Roeder, Adrienne ...
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
- Articles in the publication
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Nature Plants
- By the university
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Stockholm University