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Genome interplay in the grain transcriptome of hexaploid bread wheat
Journal article   Peer reviewed

Genome interplay in the grain transcriptome of hexaploid bread wheat

M. Pfeifer, K.G. Kugler, S.R. Sandve, B. Zhan, H. Rudi, T.R. Hvidsten, K.F. X. Mayer and O-A Olsen
Science, Vol.345(6194), pp.1250091-1250091
2014
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Abstract

Allohexaploid bread wheat (Triticum aestivum L.) provides approximately 20% of calories consumed by humans. Lack of genome sequence for the three homeologous and highly similar bread wheat genomes (A, B, and D) has impeded expression analysis of the grain transcriptome. We used previously unknown genome information to analyze the cell type–specific expression of homeologous genes in the developing wheat grain and identified distinct co-expression clusters reflecting the spatiotemporal progression during endosperm development. We observed no global but cell type– and stage-dependent genome dominance, organization of the wheat genome into transcriptionally active chromosomal regions, and asymmetric expression in gene families related to baking quality. Our findings give insight into the transcriptional dynamics and genome interplay among individual grain cell types in a polyploid cereal genome.

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Source: InCites

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Collaboration types
Industry collaboration
Domestic collaboration
International collaboration
Citation topics
3 Agriculture, Environment & Ecology
3.4 Crop Science
3.4.96 QTL
Web Of Science research areas
Plant Sciences
ESI research areas
Plant & Animal Science
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