Transcriptional signatures of wheat inflorescence development
Abstract In order to maintain global food security, it will be necessary to increase yields of the cereal crops that provide most of the calories and protein for the world’s population, which includes common wheat (Triticum aestivum L.). An important wheat yield component is the number of grain-hold...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-10-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-21571-z |
| _version_ | 1811238865088806912 |
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| author | Carl VanGessel James Hamilton Facundo Tabbita Jorge Dubcovsky Stephen Pearce |
| author_facet | Carl VanGessel James Hamilton Facundo Tabbita Jorge Dubcovsky Stephen Pearce |
| author_sort | Carl VanGessel |
| collection | DOAJ |
| description | Abstract In order to maintain global food security, it will be necessary to increase yields of the cereal crops that provide most of the calories and protein for the world’s population, which includes common wheat (Triticum aestivum L.). An important wheat yield component is the number of grain-holding spikelets which form on the spike during inflorescence development. Characterizing the gene regulatory networks controlling the timing and rate of inflorescence development will facilitate the selection of natural and induced gene variants that contribute to increased spikelet number and yield. In the current study, co-expression and gene regulatory networks were assembled from a temporal wheat spike transcriptome dataset, revealing the dynamic expression profiles associated with the progression from vegetative meristem to terminal spikelet formation. Consensus co-expression networks revealed enrichment of several transcription factor families at specific developmental stages including the sequential activation of different classes of MIKC-MADS box genes. This gene regulatory network highlighted interactions among a small number of regulatory hub genes active during terminal spikelet formation. Finally, the CLAVATA and WUSCHEL gene families were investigated, revealing potential roles for TtCLE13, TtWOX2, and TtWOX7 in wheat meristem development. The hypotheses generated from these datasets and networks further our understanding of wheat inflorescence development. |
| first_indexed | 2024-04-12T12:49:48Z |
| format | Article |
| id | doaj.art-a45415414a8b4f39b4eec14809435526 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-12T12:49:48Z |
| publishDate | 2022-10-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-a45415414a8b4f39b4eec148094355262022-12-22T03:32:31ZengNature PortfolioScientific Reports2045-23222022-10-0112111410.1038/s41598-022-21571-zTranscriptional signatures of wheat inflorescence developmentCarl VanGessel0James Hamilton1Facundo Tabbita2Jorge Dubcovsky3Stephen Pearce4Department of Soil and Crop Sciences, Colorado State UniversityDepartment of Soil and Crop Sciences, Colorado State UniversityDepartamento de Genética, Escuela Técnica Superior de Ingeniería Agronómica y de Montes, Universidad de CórdobaDepartment of Plant Sciences, University of CaliforniaDepartment of Soil and Crop Sciences, Colorado State UniversityAbstract In order to maintain global food security, it will be necessary to increase yields of the cereal crops that provide most of the calories and protein for the world’s population, which includes common wheat (Triticum aestivum L.). An important wheat yield component is the number of grain-holding spikelets which form on the spike during inflorescence development. Characterizing the gene regulatory networks controlling the timing and rate of inflorescence development will facilitate the selection of natural and induced gene variants that contribute to increased spikelet number and yield. In the current study, co-expression and gene regulatory networks were assembled from a temporal wheat spike transcriptome dataset, revealing the dynamic expression profiles associated with the progression from vegetative meristem to terminal spikelet formation. Consensus co-expression networks revealed enrichment of several transcription factor families at specific developmental stages including the sequential activation of different classes of MIKC-MADS box genes. This gene regulatory network highlighted interactions among a small number of regulatory hub genes active during terminal spikelet formation. Finally, the CLAVATA and WUSCHEL gene families were investigated, revealing potential roles for TtCLE13, TtWOX2, and TtWOX7 in wheat meristem development. The hypotheses generated from these datasets and networks further our understanding of wheat inflorescence development.https://doi.org/10.1038/s41598-022-21571-z |
| spellingShingle | Carl VanGessel James Hamilton Facundo Tabbita Jorge Dubcovsky Stephen Pearce Transcriptional signatures of wheat inflorescence development Scientific Reports |
| title | Transcriptional signatures of wheat inflorescence development |
| title_full | Transcriptional signatures of wheat inflorescence development |
| title_fullStr | Transcriptional signatures of wheat inflorescence development |
| title_full_unstemmed | Transcriptional signatures of wheat inflorescence development |
| title_short | Transcriptional signatures of wheat inflorescence development |
| title_sort | transcriptional signatures of wheat inflorescence development |
| url | https://doi.org/10.1038/s41598-022-21571-z |
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