Evolutionary Dynamics of the Cellulose Synthase Gene Superfamily in Grasses

Schwerdt, Julian G.; MacKenzie, Katrin; Wright, Frank; Oehme, Daniel P.; Wagner, John; Harvey, Andrew J.; Shirley, Neil J.; Burton, Rachel A.; Schreiber, Miriam; Halpin, Claire; Zimmer, Jochen; Marshall, David; Waugh, Robbie; Fincher, Geoffrey B.

doi:10.1104/pp.15.00140

Cited by 54 publications

(82 citation statements)

References 81 publications

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“…This finding is supported in Figure 2 with both graminid and restiid sequences within the CslF clade, branching before the Poaceae CslF6 sequences. This is concordant with the observation that CslF6 is the ancestral CslF lineage (Schwerdt et al, 2015). Only Poaceae (graminid) sequences were detected in any latter diverging CslF clades, indicating that the expansion of the CslF family has been Poaceae (graminid) specific, following the evolution of CslF6.…”

Section: Discussionsupporting

confidence: 88%

“…2). It also positions the primary CesA clade as nested within the secondary CesA clade, which is consistent with previous observations that the secondary cell wall-associated CesA genes are the earliest branching lineage (Schwerdt et al, 2015). However, the precise branching order within the primary and secondary cell wall CesA genes remains to be fully resolved.…”

Section: Cesa Subfamilysupporting

confidence: 90%

“…2), although CslD_AC4 is poorly supported and positioned at the base of the CslD clade. The CslF subfamily is resolved as sister to CslD, which supports previous studies (Schwerdt et al, 2015). However, transcript sequences from Ecdeiocolea monostachya, Joinvillea ascdendens, Flagellaria indica, and Centrolepis monogyna were placed on the branch leading to the CslF6 clade.…”

Section: Csld and Cslf Subfamiliessupporting

confidence: 87%

“…However, the precise branching order within the primary and secondary cell wall CesA genes remains to be fully resolved. We also recognize that the CesA10 group remains a highly diverged lineage, as its members do not contain the GT2 characteristic functional motif, QXXRW (Schwerdt et al, 2015). Additionally, we can now place the family with the primary wall-associated CesA_AC4.…”

Section: Cesa Subfamilymentioning

confidence: 96%

“…As the taxonomic breadth of cellulose synthase gene sampling widened, it became evident that substantial adaptive diversification has occurred since the emergence of embryophytes. The Poaceae family, which includes commercially important cereals and grasses, exhibits an especially dynamic history of varied selection pressures (Yin et al, 2009;Schwerdt et al, 2015). Three specific lineages have been detected in the Poaceae, namely CslF (Hazen et al, 2002), CslH (Hazen et al, 2002), and CslJ (Farrokhi et al, 2006Fincher, 2009).…”

mentioning

confidence: 99%

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Revised Phylogeny of the Cellulose Synthase Gene Superfamily: Insights into Cell Wall Evolution

et al. 2018

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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 () gene superfamily. Here, we analyzed 29 sequenced genomes and 17 transcriptomes to revise the phylogeny of the 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 family to the graminids and restiids and the characterization of a previously unreported eudicot lineage, , that forms a reciprocally monophyletic eudicot-monocot grouping with the clade. The lineage is widely distributed in eudicots, and the clade, which was thought previously to be restricted to the Poales, is widely distributed in monocots. Our analyses show that some members of the lineage, but not the newly identified genes, are capable of directing (1,3;1,4)-β-glucan biosynthesis, which, contrary to current dogma, is not restricted to Poaceae.

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