Genomic variants affecting homoeologous gene expression dosage contribute to agronomic trait variation in allopolyploid wheat
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Title |
Genomic variants affecting homoeologous gene expression dosage contribute to agronomic trait variation in allopolyploid wheat
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Creator |
Fei He
Wei Wang Rutter, William B. Jordan, Katherine Jie Ren Taagen, Ellie DeWitt, Noah Sehgal, Deepmala Sukumaran, Sivakumar Dreisigacker, Susanne Reynolds, Matthew P. Halder, Jyotirmoy Sehgal, Sunish Kumar Shuyu Liu Jianli Chen Fritz, Allan K. Cook, Jason Brown-Guedira, Gina Pumphrey, Mike Carter, Arron Sorrells, Mark E. Dubcovsky, Jorge Hayden, Matthew Akhunova, Alina Morrell, Peter L. Szabo, Les J. Rouse, Matthew N. Akhunov, Eduard |
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Subject |
agronomic characters
gene expression polyploidy wheat |
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Description |
Allopolyploidy greatly expands the range of possible regulatory interactions among functionally redundant homoeologous genes. However, connection between the emerging regulatory complexity and expression and phenotypic diversity in polyploid crops remains elusive. Here, we use diverse wheat accessions to map expression quantitative trait loci (eQTL) and evaluate their effects on the population-scale variation in homoeolog expression dosage. The relative contribution of cis- and trans-eQTL to homoeolog expression variation is strongly affected by both selection and demographic events. Though trans-acting effects play major role in expression regulation, the expression dosage of homoeologs is largely influenced by cis-acting variants, which appear to be subjected to selection. The frequency and expression of homoeologous gene alleles showing strong expression dosage bias are predictive of variation in yield-related traits, and have likely been impacted by breeding for increased productivity. Our study highlights the importance of genomic variants affecting homoeolog expression dosage in shaping agronomic phenotypes and points at their potential utility for improving yield in polyploid crops.
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Date |
2022-02-11
2023-04-06T14:08:45Z 2023-04-06T14:08:45Z |
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Type |
Journal Article
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Identifier |
He, F., Wang, W., Rutter, W. B., Jordan, K. W., Ren, J., Taagen, E., DeWitt, N., Sehgal, D., Sukumaran, S., Dreisigacker, S., Reynolds, M., Halder, J., Sehgal, S. K., Liu, S., Chen, J., Fritz, A., Cook, J., Brown-Guedira, G., Pumphrey, M., … Akhunov, E. 2022. Genomic variants affecting homoeologous gene expression dosage contribute to agronomic trait variation in allopolyploid wheat. Nature Communications, 13(1), 826. https://hdl.handle.net/10883/21992
2041-1723 https://hdl.handle.net/10568/129915 https://hdl.handle.net/10883/21992 https://doi.org/10.1038/s41467-022-28453-y |
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Language |
en
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Rights |
CC-BY-4.0
Open Access |
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Format |
application/pdf
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Publisher |
Springer Science and Business Media LLC
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Source |
Nature Communications
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