Comparative transcriptomics reveals desynchronisation of gene expression during the floral transition between Arabidopsis and Brassica rapa cultivars

Comparative transcriptomics can be used to translate an understanding of gene regulatory networks from model systems to less studied species. Here, we use RNA-Seq to determine and compare gene expression dynamics through the floral transition in the model species Arabidopsis thaliana and the closely...

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Main Authors: Alexander Calderwood, Jo Hepworth, Shannon Woodhouse, Lorelei Bilham, D. Marc Jones, Eleri Tudor, Mubarak Ali, Caroline Dean, Rachel Wells, Judith A. Irwin, Richard J. Morris
Format: Article
Language:English
Published: Cambridge University Press 2021-01-01
Series:Quantitative Plant Biology
Subjects:
Online Access:https://www.cambridge.org/core/product/identifier/S2632882821000060/type/journal_article
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author Alexander Calderwood
Jo Hepworth
Shannon Woodhouse
Lorelei Bilham
D. Marc Jones
Eleri Tudor
Mubarak Ali
Caroline Dean
Rachel Wells
Judith A. Irwin
Richard J. Morris
author_facet Alexander Calderwood
Jo Hepworth
Shannon Woodhouse
Lorelei Bilham
D. Marc Jones
Eleri Tudor
Mubarak Ali
Caroline Dean
Rachel Wells
Judith A. Irwin
Richard J. Morris
author_sort Alexander Calderwood
collection DOAJ
description Comparative transcriptomics can be used to translate an understanding of gene regulatory networks from model systems to less studied species. Here, we use RNA-Seq to determine and compare gene expression dynamics through the floral transition in the model species Arabidopsis thaliana and the closely related crop Brassica rapa. We find that different curve registration functions are required for different genes, indicating that there is no single common ‘developmental time’ between Arabidopsis and B. rapa. A detailed comparison between Arabidopsis and B. rapa and between two B. rapa accessions reveals different modes of regulation of the key floral integrator SOC1, and that the floral transition in the B. rapa accessions is triggered by different pathways. Our study adds to the mechanistic understanding of the regulatory network of flowering time in rapid cycling B. rapa and highlights the importance of registration methods for the comparison of developmental gene expression data.
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spelling doaj.art-f1956aace8794a2c90a90a63c1912eb42023-03-09T12:43:33ZengCambridge University PressQuantitative Plant Biology2632-88282021-01-01210.1017/qpb.2021.6Comparative transcriptomics reveals desynchronisation of gene expression during the floral transition between Arabidopsis and Brassica rapa cultivarsAlexander Calderwood0Jo Hepworth1https://orcid.org/0000-0002-4621-8414Shannon Woodhouse2https://orcid.org/0000-0001-8048-9536Lorelei Bilham3D. Marc Jones4https://orcid.org/0000-0003-3167-2590Eleri Tudor5Mubarak Ali6Caroline Dean7https://orcid.org/0000-0002-6555-3525Rachel Wells8https://orcid.org/0000-0002-1280-7472Judith A. Irwin9Richard J. Morris10https://orcid.org/0000-0003-3080-2613Department of Computational and Systems Biology, John Innes Centre, Norwich, United KingdomDepartment of Crop Genetics, John Innes Centre, Norwich, United KingdomDepartment of Computational and Systems Biology, John Innes Centre, Norwich, United KingdomDepartment of Crop Genetics, John Innes Centre, Norwich, United KingdomDepartment of Computational and Systems Biology, John Innes Centre, Norwich, United Kingdom VIB-UGent Centre for Plant Systems Biology, Gent, BelgiumDepartment of Crop Genetics, John Innes Centre, Norwich, United KingdomBangladesh Agricultural Research Institute, Gazipur, BangladeshDepartment of Cell and Developmental Biology, John Innes Centre, Norwich, United KingdomDepartment of Crop Genetics, John Innes Centre, Norwich, United KingdomDepartment of Crop Genetics, John Innes Centre, Norwich, United KingdomDepartment of Computational and Systems Biology, John Innes Centre, Norwich, United KingdomComparative transcriptomics can be used to translate an understanding of gene regulatory networks from model systems to less studied species. Here, we use RNA-Seq to determine and compare gene expression dynamics through the floral transition in the model species Arabidopsis thaliana and the closely related crop Brassica rapa. We find that different curve registration functions are required for different genes, indicating that there is no single common ‘developmental time’ between Arabidopsis and B. rapa. A detailed comparison between Arabidopsis and B. rapa and between two B. rapa accessions reveals different modes of regulation of the key floral integrator SOC1, and that the floral transition in the B. rapa accessions is triggered by different pathways. Our study adds to the mechanistic understanding of the regulatory network of flowering time in rapid cycling B. rapa and highlights the importance of registration methods for the comparison of developmental gene expression data.https://www.cambridge.org/core/product/identifier/S2632882821000060/type/journal_articleArabidopsisBrassica rapacomparative transcriptomicsfloweringFTSOC1
spellingShingle Alexander Calderwood
Jo Hepworth
Shannon Woodhouse
Lorelei Bilham
D. Marc Jones
Eleri Tudor
Mubarak Ali
Caroline Dean
Rachel Wells
Judith A. Irwin
Richard J. Morris
Comparative transcriptomics reveals desynchronisation of gene expression during the floral transition between Arabidopsis and Brassica rapa cultivars
Quantitative Plant Biology
Arabidopsis
Brassica rapa
comparative transcriptomics
flowering
FT
SOC1
title Comparative transcriptomics reveals desynchronisation of gene expression during the floral transition between Arabidopsis and Brassica rapa cultivars
title_full Comparative transcriptomics reveals desynchronisation of gene expression during the floral transition between Arabidopsis and Brassica rapa cultivars
title_fullStr Comparative transcriptomics reveals desynchronisation of gene expression during the floral transition between Arabidopsis and Brassica rapa cultivars
title_full_unstemmed Comparative transcriptomics reveals desynchronisation of gene expression during the floral transition between Arabidopsis and Brassica rapa cultivars
title_short Comparative transcriptomics reveals desynchronisation of gene expression during the floral transition between Arabidopsis and Brassica rapa cultivars
title_sort comparative transcriptomics reveals desynchronisation of gene expression during the floral transition between arabidopsis and brassica rapa cultivars
topic Arabidopsis
Brassica rapa
comparative transcriptomics
flowering
FT
SOC1
url https://www.cambridge.org/core/product/identifier/S2632882821000060/type/journal_article
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