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The CEP family in land plants : evolutionary analyses, expression studies, and role in Arabidopsis shoot development

Ianto Roberts (UGent) , Stephanie Smith, Bert De Rybel (UGent) , Jana Van den Broeke, Wouter Smet (UGent) , Sarah De Cokere (UGent) , Marieke Mispelaere, Ive De Smet (UGent) and Tom Beeckman (UGent)
(2013) JOURNAL OF EXPERIMENTAL BOTANY. 64(17). p.5371-5381
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Abstract
In Arabidopsis, more than 1000 putative small signalling peptides have been predicted, but very few have been functionally characterized. One class of small post-translationally modified signalling peptides is the C-TERMINALLY ENCODED PEPTIDE (CEP) family, of which one member has been shown to be involved in regulating root architecture. This work applied a bioinformatics approach to identify more members of the CEP family. It identified 10 additional members and revealed that this family only emerged in flowering plants and was absent from extant members of more primitive plants. The data suggest that the CEP proteins form two subgroups according to the CEP domain. This study further provides an overview of specific CEP expression patterns that offers a comprehensive framework to study the role of the CEP signalling peptides in plant development. For example, expression patterns point to a role in above-ground tissues which was corroborated by the analysis of transgenic lines with perturbed CEP levels. These results form the basis for further exploration of the mechanisms underlying this family of peptides and suggest their putative roles in distinct developmental events of higher plants.
Keywords
small signalling peptides, phylogeny, Arabidopsis, THALIANA, shoot development, evolutionary analyses, CEP expression, SECRETED PEPTIDE

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MLA
Roberts, Ianto, et al. “The CEP Family in Land Plants : Evolutionary Analyses, Expression Studies, and Role in Arabidopsis Shoot Development.” JOURNAL OF EXPERIMENTAL BOTANY, vol. 64, no. 17, 2013, pp. 5371–81, doi:10.1093/jxb/ert331.
APA
Roberts, I., Smith, S., De Rybel, B., Van den Broeke, J., Smet, W., De Cokere, S., … Beeckman, T. (2013). The CEP family in land plants : evolutionary analyses, expression studies, and role in Arabidopsis shoot development. JOURNAL OF EXPERIMENTAL BOTANY, 64(17), 5371–5381. https://doi.org/10.1093/jxb/ert331
Chicago author-date
Roberts, Ianto, Stephanie Smith, Bert De Rybel, Jana Van den Broeke, Wouter Smet, Sarah De Cokere, Marieke Mispelaere, Ive De Smet, and Tom Beeckman. 2013. “The CEP Family in Land Plants : Evolutionary Analyses, Expression Studies, and Role in Arabidopsis Shoot Development.” JOURNAL OF EXPERIMENTAL BOTANY 64 (17): 5371–81. https://doi.org/10.1093/jxb/ert331.
Chicago author-date (all authors)
Roberts, Ianto, Stephanie Smith, Bert De Rybel, Jana Van den Broeke, Wouter Smet, Sarah De Cokere, Marieke Mispelaere, Ive De Smet, and Tom Beeckman. 2013. “The CEP Family in Land Plants : Evolutionary Analyses, Expression Studies, and Role in Arabidopsis Shoot Development.” JOURNAL OF EXPERIMENTAL BOTANY 64 (17): 5371–5381. doi:10.1093/jxb/ert331.
Vancouver
1.
Roberts I, Smith S, De Rybel B, Van den Broeke J, Smet W, De Cokere S, et al. The CEP family in land plants : evolutionary analyses, expression studies, and role in Arabidopsis shoot development. JOURNAL OF EXPERIMENTAL BOTANY. 2013;64(17):5371–81.
IEEE
[1]
I. Roberts et al., “The CEP family in land plants : evolutionary analyses, expression studies, and role in Arabidopsis shoot development,” JOURNAL OF EXPERIMENTAL BOTANY, vol. 64, no. 17, pp. 5371–5381, 2013.
@article{4215737,
  abstract     = {{In Arabidopsis, more than 1000 putative small signalling peptides have been predicted, but very few have been functionally characterized. One class of small post-translationally modified signalling peptides is the C-TERMINALLY ENCODED PEPTIDE (CEP) family, of which one member has been shown to be involved in regulating root architecture. This work applied a bioinformatics approach to identify more members of the CEP family. It identified 10 additional members and revealed that this family only emerged in flowering plants and was absent from extant members of more primitive plants. The data suggest that the CEP proteins form two subgroups according to the CEP domain. This study further provides an overview of specific CEP expression patterns that offers a comprehensive framework to study the role of the CEP signalling peptides in plant development. For example, expression patterns point to a role in above-ground tissues which was corroborated by the analysis of transgenic lines with perturbed CEP levels. These results form the basis for further exploration of the mechanisms underlying this family of peptides and suggest their putative roles in distinct developmental events of higher plants.}},
  author       = {{Roberts, Ianto and Smith, Stephanie and De Rybel, Bert and Van den Broeke, Jana and Smet, Wouter and De Cokere, Sarah and Mispelaere, Marieke and De Smet, Ive and Beeckman, Tom}},
  issn         = {{0022-0957}},
  journal      = {{JOURNAL OF EXPERIMENTAL BOTANY}},
  keywords     = {{small signalling peptides,phylogeny,Arabidopsis,THALIANA,shoot development,evolutionary analyses,CEP expression,SECRETED PEPTIDE}},
  language     = {{eng}},
  number       = {{17}},
  pages        = {{5371--5381}},
  title        = {{The CEP family in land plants : evolutionary analyses, expression studies, and role in Arabidopsis shoot development}},
  url          = {{http://doi.org/10.1093/jxb/ert331}},
  volume       = {{64}},
  year         = {{2013}},
}
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