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Type: Journal article
Title: Revised phylogeny of the Cellulose Synthase gene superfamily: insights into cell wall evolution
Author: Little, A.
Schwerdt, J.
Shirley, N.
Khor, S.
Neumann, K.
O'Donovan, L.
Lahnstein, J.
Collins, H.
Henderson, M.
Fincher, G.
Burton, R.
Citation: Plant Physiology, 2018; 177(3):1124-1141
Publisher: American Society of Plant Biologists
Issue Date: 2018
ISSN: 0032-0889
Statement of
Alan Little, Julian G. Schwerdt, Neil J. Shirley, Shi F. Khor, Kylie Neumann, Lisa A. O'Donovan, Jelle Lahnstein, Helen M. Collins, Marilyn Henderson, Geoffrey B. Fincher, and Rachel A. Burton
Abstract: Cell walls are crucial for the integrity and function of all land plants, and are of central importance in human health, livestock production, and as a source of renewable bioenergy. Many enzymes that mediate the biosynthesis of cell wall polysaccharides are encoded by members of the large cellulose synthase (CesA) gene superfamily. Here, we analyzed 29 sequenced genomes and 17 transcriptomes to revise the phylogeny of the CesA gene superfamily in angiosperms. Our results identify ancestral gene clusters that predate the monocot-eudicot divergence and reveal several novel evolutionary observations, including the expansion of the Poaceae-specific cellulose synthase-like CslF family to the graminids and restiids and the characterisation of a previously unreported eudicot lineage, CslM, that forms a reciprocally monophyletic eudicot-monocot grouping with the CslJ clade. The CslM lineage is widely distributed in eudicots, and the CslJ clade, which was previously thought to be restricted to the Poales, is widely distributed in monocots. Our analyses show that some members of the CslJ lineage, but not the newly identified CslM genes, are capable of directing (1,3;1,4)-β-glucan biosynthesis, which, contrary to current dogma, is not restricted to Poaceae.
Keywords: Cell Wall; Plants, Genetically Modified; Poaceae; Tobacco; Glucosyltransferases; beta-Glucans; Plant Proteins; Evolution, Molecular; Phylogeny; Multigene Family; Magnoliopsida
Description: Published May 18, 2018
Rights: © 2018 American Society of Plant Biologists. All rights reserved.
RMID: 0030088691
DOI: 10.1104/pp.17.01718
Grant ID:
Appears in Collections:Agriculture, Food and Wine publications

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