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Université de Fribourg

Genomic footprints of repeated evolution of CAM photosynthesis in a Neotropical species radiation

De La Harpe, Marylaure ; Paris, Margot ; Hess, Jaqueline ; Barfuss, Michael Harald Johannes ; Serrano‐Serrano, Martha Liliana ; Ghatak, Arindam ; Chaturvedi, Palak ; Weckwerth, Wolfram ; Till, Walter ; Salamin, Nicolas ; Wai, Ching Man ; Ming, Ray ; Lexer, Christian

In: Plant, Cell & Environment, 2020/n/a//-

The adaptive radiation of Bromeliaceae (pineapple family) is one of the most diverse among Neotropical flowering plants. Diversification in this group was facilitated by shifts in several adaptive traits or “key innovations” including the transition from C3 to CAM photosynthesis associated with xeric (heat/drought) adaptation. We used phylogenomic approaches, complemented by differential...

Université de Fribourg

Embryonic photosynthesis affects post-germination plant growth

Sela, Ayala ; Piskurewicz, Urszula ; Megies, Christian ; Mène-Saffrané, Laurent ; Finazzi, Giovanni ; Lopez-Molina, Luis

In: Plant Physiology, 2020, vol. 182, no. 4, p. 2166–2181

Photosynthesis is the fundamental process fueling plant vegetative growth and development. The progeny of plants relies on maternal photosynthesis, via food reserves in the seed, to supply the necessary energy for seed germination and early seedling establishment. Intriguingly, before seed maturation, Arabidopsis (Arabidopsis thaliana) embryos are also photosynthetically active, the...