Universität zu Köln

Mapar, Mona, Chopra, Divykriti, Stephan, Lisa, Schrader, Andrea ORCID: 0000-0002-3879-7057, Sun, Hequan, Schneeberger, Korbinian, Albani, Maria, Coupland, George and Huelskamp, Martin (2021). Genetic and Molecular Analysis of Root Hair Development in Arabis alpina. Front. Plant Sci., 12. LAUSANNE: FRONTIERS MEDIA SA. ISSN 1664-462X

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Abstract

Root hair formation in Arabidopsis thaliana is a well-established model system for epidermal patterning and morphogenesis in plants. Over the last decades, many underlying regulatory genes and well-established networks have been identified by thorough genetic and molecular analysis. In this study, we used a forward genetic approach to identify genes involved in root hair development in Arabis alpina, a related crucifer species that diverged from A. thaliana approximately 26-40 million years ago. We found all root hair mutant classes known in A. thaliana and identified orthologous regulatory genes by whole-genome or candidate gene sequencing. Our findings indicate that the gene-phenotype relationships regulating root hair development are largely conserved between A. thaliana and A. alpina. Concordantly, a detailed analysis of one mutant with multiple hairs originating from one cell suggested that a mutation in the SUPERCENTIPEDE1 (SCN1) gene is causal for the phenotype and that AaSCN1 is fully functional in A. thaliana. Interestingly, we also found differences in the regulation of root hair differentiation and morphogenesis between the species, and a subset of root hair mutants could not be explained by mutations in orthologs of known genes from A. thaliana. This analysis provides insight into the conservation and divergence of root hair regulation in the Brassicaceae.</p>

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Mapar, Mona UNSPECIFIED UNSPECIFIED UNSPECIFIED Chopra, Divykriti UNSPECIFIED UNSPECIFIED UNSPECIFIED Stephan, Lisa UNSPECIFIED UNSPECIFIED UNSPECIFIED Schrader, Andrea UNSPECIFIED orcid.org/0000-0002-3879-7057 UNSPECIFIED Sun, Hequan UNSPECIFIED UNSPECIFIED UNSPECIFIED Schneeberger, Korbinian UNSPECIFIED UNSPECIFIED UNSPECIFIED Albani, Maria UNSPECIFIED UNSPECIFIED UNSPECIFIED Coupland, George UNSPECIFIED UNSPECIFIED UNSPECIFIED Huelskamp, Martin UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-580042
DOI:	10.3389/fpls.2021.767772
Journal or Publication Title:	Front. Plant Sci.
Volume:	12
Date:	2021
Publisher:	FRONTIERS MEDIA SA
Place of Publication:	LAUSANNE
ISSN:	1664-462X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language RECEPTOR-LIKE KINASE; AGE-DEPENDENT RESPONSE; EPIDERMAL-CELL FATE; ARABIDOPSIS CELLS; POLAR GROWTH; PLANT-CELL; PROTEIN; ENCODES; IDENTIFICATION; FERONIA Multiple languages Plant Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/58004