Circadian regulation of the transcriptome in a complex polyploid crop DOI Creative Commons
Hannah Rees, Rachel Rusholme‐Pilcher, Paul Bailey

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2021, Volume and Issue: unknown

Published: Oct. 5, 2021

Abstract The circadian clock is a finely balanced time-keeping mechanism that coordinates programmes of gene expression. It currently unknown how the regulates expression homoeologous genes in polyploids. Here, we generate high-resolution time-course dataset to investigate balance between sets three (triads) from hexaploid bread wheat. We find large proportion triads exhibit imbalanced rhythmic patterns, with no specific sub-genome favoured. In wheat, period lengths transcripts are found be longer and have higher level variance than other plant species. Expression associated controlled biological processes largely conserved wheat Arabidopsis , however striking differences seen agriculturally critical such as starch metabolism. Together, this work highlights ongoing selection for versus diversification homoeologs, identifies clock-controlled pathways might provide important targets future breeding.

Language: Английский

Circadian regulation of the transcriptome in a complex polyploid crop DOI Creative Commons
Hannah Rees, Rachel Rusholme‐Pilcher, Paul Bailey

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2021, Volume and Issue: unknown

Published: Oct. 5, 2021

Abstract The circadian clock is a finely balanced time-keeping mechanism that coordinates programmes of gene expression. It currently unknown how the regulates expression homoeologous genes in polyploids. Here, we generate high-resolution time-course dataset to investigate balance between sets three (triads) from hexaploid bread wheat. We find large proportion triads exhibit imbalanced rhythmic patterns, with no specific sub-genome favoured. In wheat, period lengths transcripts are found be longer and have higher level variance than other plant species. Expression associated controlled biological processes largely conserved wheat Arabidopsis , however striking differences seen agriculturally critical such as starch metabolism. Together, this work highlights ongoing selection for versus diversification homoeologs, identifies clock-controlled pathways might provide important targets future breeding.

Language: Английский

Citations

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