ArticlePlant physiology2012
Diverse roles of strigolactone signaling in maize architecture and the uncoupling of a branching-specific subnetwork.
Article in Plant physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers.
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73 citing papers in PubMed, 155 citations in OpenAlex.
- Article
- The cost of survival: mutation in a barley Strigolactone repressor HvD53A impairs photosynthesis but increases drought tolerance.Plant & cell physiology · 2025Article
- Mangrove-Derived Endophytic Bacteria Enhance Growth, Yield, and Stress Resilience in Rice.International journal of molecular sciences · 2025Article
- Genome-wide identification of CCD gene family in Peach (Prunus persica L. Batsch) and expression analysis with aroma norisoprenoids.BMC plant biology · 2025Article
- Developing Striga resistance in sorghum by modulating host cues through CRISPR/Cas9 gene editing.Plant cell reports · 2025Article
- Strigolactone and karrikin receptors regulate phytohormone biosynthetic and catabolic processes.Plant cell reports · 2025Article
- Genetic Diversity Analysis and GWAS of Plant Height and Ear Height in Maize Inbred Lines from South-East China.Plants (Basel, Switzerland) · 2025Article
- ZmCCD8 regulates sugar and amino acid accumulation in maize kernels via strigolactone signalling.Plant biotechnology journal · 2025Article
- The root cortex of the Poaceae: a diverse, dynamic, and dispensable tissue.Plant and soil · 2025Review
- Interactions between Brassinosteroids and Strigolactones in Alleviating Salt Stress in Maize.International journal of molecular sciences · 2024Article
- OsCYP706C2 diverts rice strigolactone biosynthesis to a noncanonical pathway branch.Science advances · 2024Article
- Identification and expression of strigolactone biosynthesis and signaling genes and the in vitro effects of strigolactones in olive (Plant direct · 2024Article
- Modulating root system architecture: cross-talk between auxin and phytohormones.Frontiers in plant science · 2024Review
- Strigolactones and Shoot Branching: What Is the Real Hormone and How Does It Work?Plant & cell physiology · 2023Review
- Lessons from a century of apical dominance research.Journal of experimental botany · 2023Article
- Novel insights into maize (Zea mays) development and organogenesis for agricultural optimization.Planta · 2023Review
- An a-MAIZE-ing development.The Plant cell · 2023Article
- Maize domestication phenotypes reveal strigolactone networks coordinating grain size evolution with kernel-bearing cupule architecture.The Plant cell · 2023Article
- Article
- Article
13 more citing papers are in PubMed but not listed here.
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Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Strigolactones (SLs) control lateral branching in diverse species by regulating transcription factors orthologous to Teosinte branched1 (Tb1). In maize (Zea mays), however, selection for a strong central stalk during domestication is attributed primarily to the Tb1 locus, leaving the architectural roles of SLs unclear. To determine how this signaling network is altered in maize, we first examined effects of a knockout mutation in an essential SL biosynthetic gene that encodes CAROTENOID CLEAVAGE DIOXYGENASE8 (CCD8), then tested interactions between SL signaling and Tb1. Comparative genome analysis revealed that maize depends on a single CCD8 gene (ZmCCD8), unlike other panicoid grasses that have multiple CCD8 paralogs. Function of ZmCCD8 was confirmed by transgenic complementation of Arabidopsis (Arabidopsis thaliana) max4 (ccd8) and by phenotypic rescue of the maize mutant (zmccd8::Ds) using a synthetic SL (GR24). Analysis of the zmccd8 mutant revealed a modest increase in branching that contrasted with prominent pleiotropic changes that include (1) marked reduction in stem diameter, (2) reduced elongation of internodes (independent of carbon supply), and (3) a pronounced delay in development of the centrally important, nodal system of adventitious roots. Analysis of the tb1 zmccd8 double mutant revealed that Tb1 functions in an SL-independent subnetwork that is not required for the other diverse roles of SL in development. Our findings indicate that in maize, uncoupling of the Tb1 subnetwork from SL signaling has profoundly altered the balance between conserved roles of SLs in branching and diverse aspects of plant architecture.
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