Comparative expression analysis in three Brassicaceae species revealed compensatory changes of the underlying gene regulatory network

Trichomes are regularly distributed on the leaves of Arabidopsis thaliana. The gene regulatory network underlying trichome patterning involves more than 15 genes. However, it is possible to explain patterning with only five components. This raises the questions about the function of the additional c...

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Main Authors: Jessica Pietsch, Anna Deneer, Christian Fleck, Martin Hülskamp
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-01-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2022.1086004/full
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author Jessica Pietsch
Anna Deneer
Christian Fleck
Martin Hülskamp
author_facet Jessica Pietsch
Anna Deneer
Christian Fleck
Martin Hülskamp
author_sort Jessica Pietsch
collection DOAJ
description Trichomes are regularly distributed on the leaves of Arabidopsis thaliana. The gene regulatory network underlying trichome patterning involves more than 15 genes. However, it is possible to explain patterning with only five components. This raises the questions about the function of the additional components and the identification of the core network. In this study, we compare the relative expression of all patterning genes in A. thaliana, A. alpina and C. hirsuta by qPCR analysis and use mathematical modelling to determine the relative importance of patterning genes. As the involved proteins exhibit evolutionary conserved differential complex formation, we reasoned that the genes belonging to the core network should exhibit similar expression ratios in different species. However, we find several striking differences of the relative expression levels. Our analysis of how the network can cope with such differences revealed relevant parameters that we use to predict the relevant molecular adaptations in the three species.
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spelling doaj.art-f43991345be34f04b78bd66f7b636fb42023-01-04T12:37:20ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2023-01-011310.3389/fpls.2022.10860041086004Comparative expression analysis in three Brassicaceae species revealed compensatory changes of the underlying gene regulatory networkJessica Pietsch0Anna Deneer1Christian Fleck2Martin Hülskamp3Botanical Institute, Biocenter, Cologne University, Cologne, GermanyBiometris, Department of Mathematical and Statistical Methods, Wageningen University, Wageningen, NetherlandsSpatial Systems Biology Group, Center for Data Analysis and Modeling, University of Freiburg, Freiburg, GermanyBotanical Institute, Biocenter, Cologne University, Cologne, GermanyTrichomes are regularly distributed on the leaves of Arabidopsis thaliana. The gene regulatory network underlying trichome patterning involves more than 15 genes. However, it is possible to explain patterning with only five components. This raises the questions about the function of the additional components and the identification of the core network. In this study, we compare the relative expression of all patterning genes in A. thaliana, A. alpina and C. hirsuta by qPCR analysis and use mathematical modelling to determine the relative importance of patterning genes. As the involved proteins exhibit evolutionary conserved differential complex formation, we reasoned that the genes belonging to the core network should exhibit similar expression ratios in different species. However, we find several striking differences of the relative expression levels. Our analysis of how the network can cope with such differences revealed relevant parameters that we use to predict the relevant molecular adaptations in the three species.https://www.frontiersin.org/articles/10.3389/fpls.2022.1086004/fullevolutiontrichomesgenetic analysispatterningbrassicaceaearabis alpina
spellingShingle Jessica Pietsch
Anna Deneer
Christian Fleck
Martin Hülskamp
Comparative expression analysis in three Brassicaceae species revealed compensatory changes of the underlying gene regulatory network
Frontiers in Plant Science
evolution
trichomes
genetic analysis
patterning
brassicaceae
arabis alpina
title Comparative expression analysis in three Brassicaceae species revealed compensatory changes of the underlying gene regulatory network
title_full Comparative expression analysis in three Brassicaceae species revealed compensatory changes of the underlying gene regulatory network
title_fullStr Comparative expression analysis in three Brassicaceae species revealed compensatory changes of the underlying gene regulatory network
title_full_unstemmed Comparative expression analysis in three Brassicaceae species revealed compensatory changes of the underlying gene regulatory network
title_short Comparative expression analysis in three Brassicaceae species revealed compensatory changes of the underlying gene regulatory network
title_sort comparative expression analysis in three brassicaceae species revealed compensatory changes of the underlying gene regulatory network
topic evolution
trichomes
genetic analysis
patterning
brassicaceae
arabis alpina
url https://www.frontiersin.org/articles/10.3389/fpls.2022.1086004/full
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AT christianfleck comparativeexpressionanalysisinthreebrassicaceaespeciesrevealedcompensatorychangesoftheunderlyinggeneregulatorynetwork
AT martinhulskamp comparativeexpressionanalysisinthreebrassicaceaespeciesrevealedcompensatorychangesoftheunderlyinggeneregulatorynetwork