ArticleTransgenic research2014
Overexpression of sweetpotato expansin cDNA (IbEXP1) increases seed yield in Arabidopsis.
Article in Transgenic research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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22 citing papers in PubMed, 41 citations in OpenAlex.
- Identification of genes controlling grain size in barley through RNA-seq and weighted gene co-expression network analysis.Functional & integrative genomics · 2026Article
- Article
- When Size Matters: New Insights on How Seed Size Can Contribute to the Early Stages of Plant Development.Plants (Basel, Switzerland) · 2024Review
- GW9 determines grain size and floral organ identity in rice.Plant biotechnology journal · 2024Article
- Article
- Evolution and Expression of the Expansin Genes in Emmer Wheat.International journal of molecular sciences · 2023Article
- Emerging roles of the ubiquitin-proteasome pathway in enhancing crop yield by optimizing seed agronomic traits.Plant cell reports · 2022Review
- Overexpression ofInternational journal of molecular sciences · 2022Article
- Dynamic transcriptome analysis suggests the key genes regulating seed development and filling in Tartary buckwheat (Frontiers in genetics · 2022Article
- Overcoming the trade-off between grain weight and number in wheat by the ectopic expression of expansin in developing seeds leads to increased yield potential.The New phytologist · 2021Article
- Transcriptome Analysis Reveals Key Pathways and Candidate Genes Controlling Seed Development and Size in Ricebean (Frontiers in genetics · 2021Article
- Overexpression of RiceInternational journal of molecular sciences · 2020Article
- Low Nitrogen Fertilization Alter Rhizosphere Microorganism Community and Improve Sweetpotato Yield in a Nitrogen-Deficient Rocky Soil.Frontiers in microbiology · 2020Article
- The miR164-dependent regulatory pathway in developing maize seed.Molecular genetics and genomics : MGG · 2019Article
- Expansin genes expression in growing ovaries and grains of sunflower are tissue-specific and associate with final grain weight.BMC plant biology · 2018Article
- OsEXPA10 mediates the balance between growth and resistance to biotic stress in rice.Plant cell reports · 2018Article
- GW2 Functions as an E3 Ubiquitin Ligase for Rice Expansin-Like 1.International journal of molecular sciences · 2018Article
- Genome-wide identification, characterization and expression profile analysis of expansins gene family in sugarcane (Saccharum spp.).PloS one · 2018Article
- Article
- Expansins: roles in plant growth and potential applications in crop improvement.Plant cell reports · 2016Review
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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
Results of transcriptome analyses suggest that expansin genes play an active role in seed development and yield, but gain- or loss-of-function studies have not yet elucidated the functional role(s) of the expansin gene(s) in these processes. We have overexpressed a sweetpotato expansin gene (IbEXP1) in Arabidopsis under the control of cauliflower mosaic 35S promoter in an attempt to determine the effect of the expansin gene in seed development and yield in heterologous plants. The growth rate was enhanced in IbEXP1-overexpressing (ox) plants relative to wild-type Col-0 plants during early vegetative growth stage. At the reproductive stage, the number of rosette leaves was higher in IbEXP1-ox plants than that in Col-0 plants, and siliques were thicker. IbEXP1-ox plants produced larger seeds, accumulated more protein and starch in each seed, and produced more inflorescence stems and siliques than Col-0 plants, leading to a 2.1-2.5-fold increase in total seed yield per plant. The transcript level of IbEXP1 was up-regulated in response to brassinosteroid (BR) treatment in sweetpotato, and the transcript levels of three BR-responsive genes, fatty acid elongase 3-ketoacyl-CoA synthase 1, HAIKU1 and MINISEED3, were also increased in IbEXP1-ox Arabidopsis plants, suggesting a possible involvement of IbEXP1 in at least one of the BR signaling pathways. Based on these results, we suggest that overexpression of IbEXP1 gene in heterologous plants is effective in increasing seed size and number and, consequently, seed yield.
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