Plant cyclins: A unified nomenclature for plant A-, B- and D-type cyclins based on sequence organization

Jean Pierre Renaudin*, John H. Doonan, Donna Freeman, Junji Hashimoto, Heribert Hirt, Dirk Inzé, Thomas Jacobs, Hiroshi Kouchi, Pierre Rouzé, Margret Sauter, Arnould Savouré, David A. Sorrell, Venkatesan Sundaresan, James A.H. Murray

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

204 Scopus citations


The comparative analysis of a large number of plant cyclins of the A/B family has recently revealed that plants possess two distinct B-type groups and three distinct A-type groups of cyclins [1]. Despite earlier uncertainties, this large scale comparative analysis has allowed an unequivocal definition of plant cyclins into either A or B classes. We present here the most important results obtained in this study, and extend them to the case of plant D-type cyclins, in which three groups are identified. For each of the plant cyclin groups, consensus sequences have been established and a new, rational, plant wide naming system is proposed in accordance with the guidelines of the Commission on Plant Gene Nomenclature. This nomenclature is based on the animal system indicating cyclin classes by an upper-case roman letter, and distinct groups within these classes by an arabic numeral suffix. The naming of plant cyclin classes is chosen to indicate homology to their closest animal class. The revised nomenclature of all described plant cyclins is presented, with their classification into groups CycA1, CycA2, CycA3, CycB1, CycB2, CycD1, CycD2 and CycD3.

Original languageEnglish (US)
Pages (from-to)1003-1018
Number of pages16
JournalPlant Molecular Biology
Issue number6
StatePublished - 1996
Externally publishedYes


  • cyclins
  • nomenclature

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Genetics
  • Plant Science


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