A5116426456- Mycorrhizal Fungi and Plant Interactions
- Chromosomal and Genetic Variations
- Plant Taxonomy and Phylogenetics
- Plant Physiology and Cultivation Studies
- Plant Molecular Biology Research
- Plant Reproductive Biology
Université de Rennes
2025
Centre National de la Recherche Scientifique
2025
Ecosystèmes, Biodiversité, Evolution
2025
Plant history is characterized by cyclical whole genome duplication and diploidization with important biological ecological consequences. Here, we explore the of two related iconic polyploid grasses (Sporobolus alterniflorus S. maritimus), involved in a well-known example neopolyploid speciation. We report particular dynamics where an ancestral Sporobolus (n = 2x 20) duplicated 9.6-24.4 million years ago (MYA), which was followed descending dysploidy resulting unexpected base chromosome...
ABSTRACT Whole genome duplication (WGD or polyploidization) events shape plant evolution, altering ecological responses and traits, particularly those related to cell tissue size. We studied genetic diversity phenotypic plasticity in Spartina populations, focusing on hybrid ( × townsendii ) allopolyploid S. anglica cytotypes Wadden Sea salt marshes. Our results reveal low both a complex response of traits global change factors (drought, elevated CO 2 concentration). While WGD increased...