Evolution of Class II TCP genes in perianth bearing Piperales and their contribution to the bilateral calyx in Aristolochia

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Natalia Pabon-Mora - , Technische Universität Dresden (Autor:in)
  • Yesenia Madrigal - , Universidad de Antioquia (Autor:in)
  • Juan F. Alzate - , Universidad de Antioquia (Autor:in)
  • Barbara A. Ambrose - , New York Botanical Garden (Autor:in)
  • Cristina Ferrandiz - , Consejo Superior de Investigaciones Científicas (CSIC) (Autor:in)
  • Stefan Wanke - , Professur für Botanik (Autor:in)
  • Christoph Neinhuis - , Professur für Botanik (Autor:in)
  • Favio Gonzalez - , Universidad Nacional de Colombia (Autor:in)

Abstract

Controlled spatiotemporal cell division and expansion are responsible for floral bilateral symmetry. Genetic studies have pointed to class IITCPgenes as major regulators of cell division and floral patterning in model core eudicots. Here we study their evolution in perianth-bearing Piperales and their expression inAristolochia, a rare occurrence of bilateral perianth outside eudicots and monocots. The evolution of class IITCPgenes reveals single-copyCYCLOIDEA-likegenes and three paralogs ofCINCINNATA(CIN) in early diverging angiosperms. All class IITCPgenes have independently duplicated inAristolochiasubgenusSiphisia. AlsoCIN2genes duplicated before the diversification ofSarumaandAsarum. Sequence analysis shows that CIN1 and CIN3 share motifs with Cyclin proteins andCIN2genes have lost themiRNA319abinding site. Expression analyses of all paralogs of class IITCPgenes inAristolochiafimbriatapoint to a role ofCYCandCINgenes in maintaining differential perianth expansion during mid- and late flower developmental stages by promoting cell division in the distal and ventral portion of the limb. It is likely that class IITCPgenes also contribute to cell division in the leaf, the gynoecium and the ovules inA.fimbriata.

Details

OriginalspracheEnglisch
Seiten (von - bis)752-769
Seitenumfang18
FachzeitschriftNew phytologist
Jahrgang228
Ausgabenummer2
PublikationsstatusVeröffentlicht - Okt. 2020
Peer-Review-StatusJa

Externe IDs

Scopus 85087292036

Schlagworte

Schlagwörter

  • Aristolochia, cell division, CINCINNATA, CYCLOIDEA, floral symmetry, Piperales, TRANSCRIPTION FACTORS, DORSOVENTRAL ASYMMETRY, NEGATIVE REGULATION, FLORAL ASYMMETRY, ARABIDOPSIS, EXPRESSION, SYMMETRY, ZYGOMORPHY, FLOWERS, ORIGIN

Bibliotheksschlagworte