COMPOSITUM 1 contributes to the architectural simplification of barley inflorescence via meristem identity signals

Autor: Michael Melzer, Nils Stein, Thomas Schmutzer, Ravi Koppolu, Marion Dalmais, Zhanguo Xin, Udda Lundqvist, Corinna Trautewig, Thorsten Schnurbusch, Naser Poursarebani, Thomas Nussbaumer, Abdelhafid Bendahmane, Twan Rutten, Richard Sibout, Helmy M. Youssef, Lothar Altschmied, Ronny Brandt, Axel Himmelbach
Přispěvatelé: Leibniz Institute of Plant Genetics and Crop Plant Research [Gatersleben] (IPK-Gatersleben), Helmholtz Zentrum München (HMGU), German Research Center for Environmental Health, Institute of Network Biology (INET), Nordic Genetic Resource Center (NordGen), Technical University of Munich and Helmholtz Center Munich, Institute of Environmental Medicine, WIK Wissenschaftliches Institut für Infrastruktur und Kommunikationsdienste [Bad Honnef]-WIK Wissenschaftliches Institut für Infrastruktur und Kommunikationsdienste [Bad Honnef], Institute of Agricultural and Nutritional Sciences, Faculty of Natural Sciences III, Martin-Luther-University Halle-Wittenberg-Martin-Luther-University Halle-Wittenberg, Faculty of Agriculture, Cairo University, Institut Jean-Pierre Bourgin (IJPB), AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Unité de recherche sur les Biopolymères, Interactions Assemblages (BIA), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Institut des Sciences des Plantes de Paris-Saclay (IPS2 (UMR_9213 / UMR_1403)), Université d'Évry-Val-d'Essonne (UEVE)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Cropping Systems Research Laboratory, Plant Stress and Germplasm Development Unit, United States Department of Agriculture - Agricultural Research Service (USDA-ARS)-United States Department of Agriculture - Agricultural Research Service (USDA-ARS), Martin-Luther-Universität Halle Wittenberg (MLU), Federal Ministry of Education & Research (BMBF) FKZ 0315954A 031B0201A, German Research Foundation (DFG) SCHN 768/8-1 SCHN 768/15-1, IPK core budget, Université d'Évry-Val-d'Essonne (UEVE)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
Jazyk: angličtina
Rok vydání: 2020
Předmět:
0106 biological sciences
0301 basic medicine
[SDV]Life Sciences [q-bio]
General Physics and Astronomy
Spike
01 natural sciences
Plant evolution
Gene Expression Regulation
Plant
Inflorescence
lcsh:Science
Triticeae
Plant Proteins
2. Zero hunger
Molecular breeding
Regulation of gene expression
Diversity
Multidisciplinary
Natural selection
food and beverages
Cell biology
[SDE]Environmental Sciences
Signal Transduction
Morphology
Agricultural genetics
Evolution
Science
Meristem
Biology
Article
General Biochemistry
Genetics and Molecular Biology
03 medical and health sciences
otorhinolaryngologic diseases
ddc:610
Transcription factor
Gene
Shoot apical meristem
Program
Hordeum
General Chemistry
15. Life on land
biology.organism_classification
030104 developmental biology
Mutation
lcsh:Q
[INFO.INFO-ET]Computer Science [cs]/Emerging Technologies [cs.ET]
Format
010606 plant biology & botany
Zdroj: Nature Communications
Nature Communications, Nature Publishing Group, 2020, 11 (1), ⟨10.1038/s41467-020-18890-y⟩
Nat. Commun. 11:5138 (2020)
Nature Communications, 2020, 11 (1), ⟨10.1038/s41467-020-18890-y⟩
Nature Communications, Vol 11, Iss 1, Pp 1-16 (2020)
ISSN: 2041-1723
DOI: 10.1038/s41467-020-18890-y⟩
Popis: Grasses have varying inflorescence shapes; however, little is known about the genetic mechanisms specifying such shapes among tribes. Here, we identify the grass-specific TCP transcription factor COMPOSITUM 1 (COM1) expressing in inflorescence meristematic boundaries of different grasses. COM1 specifies branch-inhibition in barley (Triticeae) versus branch-formation in non-Triticeae grasses. Analyses of cell size, cell walls and transcripts reveal barley COM1 regulates cell growth, thereby affecting cell wall properties and signaling specifically in meristematic boundaries to establish identity of adjacent meristems. COM1 acts upstream of the boundary gene Liguleless1 and confers meristem identity partially independent of the COM2 pathway. Furthermore, COM1 is subject to purifying natural selection, thereby contributing to specification of the spike inflorescence shape. This meristem identity pathway has conceptual implications for both inflorescence evolution and molecular breeding in Triticeae.
Grasses have diverse inflorescence morphologies, but the underlying genetic mechanisms are unclear. Here, the authors report a TCP transcription factor COM1 affects cell growth through regulation of cell wall properties and promotes branch formation in non-Triticeae grasses but branch inhibition in barley (Triticeae).
Databáze: OpenAIRE
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