ArticleScientific reports2019
Temporal and Spatial Expression of Arabidopsis Gene Homologs Control Daylength Adaptation and Bulb Formation in Onion (Allium cepa L.).
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- A near-complete genome assembly of onion resolves its genomic architecture, origin, and evolution.Plant communications · 2026Article
- Induction of flowering with a photoperiod extension coupled with gibberellic acid treatment: physiological and molecular insights in Allium species.BMC plant biology · 2025Article
- Diversity ofHeliyon · 2025Article
- Transcriptome Analysis Reveals Novel Genes Potentially Involved in Tuberization in Potato.Plants (Basel, Switzerland) · 2024Article
- Article
- Form and contour: breeding and genetics of organ shape from wild relatives to modern vegetable crops.Frontiers in plant science · 2023Review
- Integrated Genomic and Transcriptomic Elucidation of Flowering in Garlic.International journal of molecular sciences · 2022Article
- Genome-wide characterization of PEBP gene family inFrontiers in plant science · 2022Article
- Asymmetric expansions of FT and TFL1 lineages characterize differential evolution of the EuPEBP family in the major angiosperm lineages.BMC biology · 2021Article
- Mechanism of Allium Crops Bulb Enlargement in Response to Photoperiod: A Review.International journal of molecular sciences · 2020Review
- Evolution and Expression of Reproductive Transition Regulatory GenesFrontiers in plant science · 2020Article
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3 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Genetic studies aimed at onion improvement have been limited because of high heterozygosity, a very large genome size with a high level of repetitive DNA and a biennial life cycle. Onion bulb initiation is daylength-dependent, which places a significant barrier to adapting new varieties for growth at different latitudes. Compared to the photoperiodic regulation of flowering, relatively little is known about genetic regulation of the bulbing process. This study aims to identify the role of gene sequences involved in daylength-regulated bulb formation and tissue specific expression of onion. A comprehensive set of developmental and spatial quantitative mRNA expression experiments were carried out to investigate expression of onion FLOWERING LOCUS T (AcFT), LEAFY (AcLFY) and GIBBERELLIN-3 OXIDASE (GA3ox1) during the bulbing response. Bulbing ratios were used to measure the response of onion plants under long day (LD) and short day (SD) conditions. AcFT1 was expressed in LD, which induces bulb formation, while AcFT4 was expressed in SD, which inhibits bulb formation. AcFT5 and AcFT6 were expressed in LD and might also be involved in bulb formation itself. All AcFT, AcLFY and GA3ox1 genes showed distinctive patterns of tissue specific expression in onion, with AcFT genes found primarily in the sites of perception in the leaf and LFY in the basal tissues, the site of response. The results are consistent with AcFT1 expression being the signal for LD-induced bulb initiation and AcFT4, being involved in suppressing bulbing in SD.
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