ArticleJournal of experimental botany2020
Cytokinin regulates the activity of the inflorescence meristem and components of seed yield in oilseed rape.
Article in Journal of experimental botany, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 1 of them a synthesis that pooled it.
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Who cites it
37 citing papers in PubMed, 1 synthesis or guideline pooled it, 69 citations in OpenAlex.
- Role of cytokinins in seed development in pulses and oilseed crops: Current status and future perspective.Frontiers in genetics · 2022Pooled it
- Towards an integrated molecular understanding of plant hormones.Journal of integrative plant biology · 2026Review
- Knockout of a cytokinin oxidase/dehydrogenase boosts soybean yield.Plant communications · 2026Article
- Differential activity of CYTOKININ OXIDASE/DEHYDROGENASE3 (CKX3) and CKX5 genes in regulating yield components in Brassica napus L.Plant molecular biology · 2026Article
- The Hidden Architects: Nitric Oxide and Redox Dynamics in Plant Stem Cell Homeostasis.BioEssays : news and reviews in molecular, cellular and developmental biology · 2025Review
- The transcription factor BoMYC2 negatively regulates seed size by activating cytokinin dehydrogenase BoCKX5 in Broccoli.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Molecular Characterization of Cytokinin Response Regulator ARR21 inPlant direct · 2025Article
- Genome-wide investigation of cytokinin oxidase/dehydrogenase (CKX) family genes in Brassica juncea with an emphasis on yield-influencing CKX.Scientific reports · 2025Article
- Article
- Nitric oxide and cytokinin cross-talk and their role in plant hypoxia response.Plant signaling & behavior · 2024Review
- Article
- Cytokinin and reproductive shoot architecture: bigger and better?Biochemical Society transactions · 2024Review
- Identification of CKX gene family in Morus indica cv K2 and functional characterization of MiCKX4 during abiotic stress.Stress biology · 2024Article
- Seed yield as a function of cytokinin-regulated gene expression in wild Kentucky bluegrass (Poa pratensis).BMC plant biology · 2024Article
- Exploring silique number in Brassica napus L.: Genetic and molecular advances for improving yield.Plant biotechnology journal · 2024Review
- Cytokinin: From autoclaved DNA to two-component signaling.The Plant cell · 2024Review
- Analysis of Genetic Diversity in Adzuki Beans (Plants (Basel, Switzerland) · 2023Article
- The Role of Cytokinins during the Development of Strawberry Flowers and Receptacles.Plants (Basel, Switzerland) · 2023Article
- Cytokinin Translocation to, and Biosynthesis and Metabolism within, Cereal and Legume Seeds: Looking Back to Inform the Future.Metabolites · 2023Review
- The central role of stem cells in determining plant longevity variation.Plant communications · 2023Review
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The number of flowers and seed-bearing structures formed by the inflorescence meristem and the formation of ovules in the female reproductive part of the flowers are important yield-related traits of crop plants. It has been shown that cytokinin is a pivotal factor regulating these traits. Here, we explore the impact of mutation of CYTOKININ OXIDASE/DEHYDROGENASE (CKX) genes encoding cytokinin-degrading enzymes on these yield-related traits in oilseed rape (Brassica napus L.). We describe the identification of four BnCKX3 and two BnCKX5 genes as regulators of reproductive development in the allotetraploid B. napus. RNA-seq analysis and in situ hybridization showed expression of these genes in reproductive organs. Loss-of-function mutants for each of these CKX gene copies were identified by targeting induced local lesions in genomes (TILLING) and combined by crossing. Sextuple ckx3 ckx5 mutants showed an increased cytokinin concentration and larger and more active inflorescence meristems. They also produced up to 72% more flowers with gynoecia containing 32% more ovules and up to 54% more pods on the main stem. The weight of seeds harvested from the main stem of plants grown in the greenhouse or in the field was increased by 20-32%. Our results show that cytokinin regulates inflorescence meristem and placenta activity in oilseed rape. The work demonstrates the potential to achieve yield enhancement in a dicot crop plant by modulating the cytokinin status through mutagenesis of specific CKX genes.
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