Document Type
Article
Abstract
Background: The cellulose synthase superfamily has been classified into nine cellulose synthaselike (Csl) families and one cellulose synthase (CesA) family. The Csl families have been proposed to be involved in the synthesis of the backbones of hemicelluloses of plant cell walls. With 17 plant and algal genomes fully sequenced, we sought to conduct a genome-wide and systematic investigation of this superfamily through in-depth phylogenetic analyses. Results: A single-copy gene is found in the six chlorophyte green algae, which is most closely related to the CslA and CslC families that are present in the seven land plants investigated in our analyses. Six proteins from poplar, grape and sorghum form a distinct family (CslJ), providing further support for the conclusions from two recent studies. CslB/E/G/H/J families have evolved significantly more rapidly than their widely distributed relatives, and tend to have intragenomic duplications, in particular in the grape genome. Conclusion: Our data suggest that the CslA and CslC families originated through an ancient gene duplication event in land plants. We speculate that the single-copy Csl gene in green algae may encode a mannan synthase. We confirm that the rest of the Csl families have a different evolutionary origin than CslA and CslC, and have proposed a model for the divergence order among them. Our study provides new insights about the evolution of this important gene family in plants.
Publication Date
7-1-2009
Recommended Citation
Yin, Yanbin; Huang, Jinling; and Xu, Ying, "The Cellulose Synthase Superfamily in Fully Sequenced Plants and Algae" (2009). Faculty Peer-Reviewed Publications. 788.
https://huskiecommons.lib.niu.edu/allfaculty-peerpub/788
Department
Department of Biological Sciences
Legacy Department
Department of Biological Sciences
Sponsorship
U.S. Department of Energy (grant # 4000063512) and the National Science Foundation (grant #: NSF/DEB-0830024, NSF/DBI- 0354771, NSF/ITR-IIS-0407204, NSF/DBI-0542119, and NSF/CCF0621700).
ISSN
1471-2229
Language
eng
Publisher
BioMed Central
