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Peer-Reviewed Publication
Mol Ecol2026;35(6):e70313.March 1, 2026Journal Article

Divergent Transcriptional Architectures Beyond Core CAM Genes in Facultative and Constitutive CAM Species in Tillandsia L.

Clara Groot-Crego1,2,3, Sarah Saadain1,2,4, Marylaure De La Harpe1, Jaqueline Hess1,5, Michael H J Barfuss1, Walter Till1, Gert Bachmann6, Wolfram Weckwerth6,7, Christian Lexer1, Ovidiu Paun1
1Department of Botany and Biodiversity Research, University of Vienna, Vienna, Austria.
2Vienna Graduate School of Population Genetics, Vienna, Austria.
3Austrian Research Centre for Forests (BFW), Vienna, Austria.
4Institut für Populationsgenetik, Vienna, Austria.
5Cambrium GmbH, Berlin, Germany.
6Department of Functional and Evolutionary Ecology, Molecular Systems Biology (MOSYS), University of Vienna, Vienna, Austria.
7Vienna Metabolomics Center (VIME), University of Vienna, Vienna, Austria.
PubMed PMC DOI PDF

Abstract

Crassulacean acid metabolism (CAM) is a water-efficient photosynthetic strategy involving a coordinated suite of complex traits including metabolic, anatomical and regulatory aspects that shift across the diel cycle. While CAM has evolved repeatedly in land plants, the evolutionary routes enabling this convergence remain elusive. Whereas the same core CAM (de)carboxylation genes are consistently i…

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