Natural Variation of Arabidopsis Root Architecture Reveals Complementing Adaptive Strategies to Potassium Starvation1[C][W][OA]
نویسندگان
چکیده
Plant Science Group, Institute of Molecular, Cell, and Systems Biology, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow G12 8QQ, United Kingdom (F.K., A.A.); and Institut National de la Recherche Agronomique, Unité Mixte de Recherche 1318, Institut National de la Recherche Agronomique-AgroParisTech, Institut Jean-Pierre Bourgin, Saclay Plant Sciences, RD10, F–78000 Versailles, France (F.C.)
منابع مشابه
Natural variation of Arabidopsis root architecture reveals complementing adaptive strategies to potassium starvation.
Root architecture is a highly plastic and environmentally responsive trait that enables plants to counteract nutrient scarcities with different foraging strategies. In potassium (K) deficiency (low K), seedlings of the Arabidopsis (Arabidopsis thaliana) reference accession Columbia (Col-0) show a strong reduction of lateral root elongation. To date, it is not clear whether this is a direct cons...
متن کاملCapturing Arabidopsis root architecture dynamics with ROOT-FIT reveals diversity in responses to salinity.
The plant root is the first organ to encounter salinity stress, but the effect of salinity on root system architecture (RSA) remains elusive. Both the reduction in main root (MR) elongation and the redistribution of the root mass between MRs and lateral roots (LRs) are likely to play crucial roles in water extraction efficiency and ion exclusion. To establish which RSA parameters are responsive...
متن کاملNatural genetic variation of root system architecture from Arabidopsis to Brachypodium: towards adaptive value.
Root system architecture is a trait that displays considerable plasticity because of its sensitivity to environmental stimuli. Nevertheless, to a significant degree it is genetically constrained as suggested by surveys of its natural genetic variation. A few regulators of root system architecture have been isolated as quantitative trait loci through the natural variation approach in the dicotyl...
متن کاملPolyploids exhibit higher potassium uptake and salinity tolerance in Arabidopsis.
Genome duplication (or polyploidization) has occurred throughout plant evolutionary history and is thought to have driven the adaptive radiation of plants. We found that the cytotype of the root, and not the genotype, determined the majority of heritable natural variation in leaf potassium (K) concentration in Arabidopsis thaliana. Autopolyploidy also provided resistance to salinity and may rep...
متن کاملCorrection for Rosas et al., Integration of responses within and across Arabidopsis natural accessions uncovers loci controlling root systems architecture.
Phenotypic plasticity is presumed to be involved in adaptive change toward species diversification. We thus examined how candidate genes underlying natural variation across populations might also mediate plasticity within an individual. Our implementation of an integrative "plasticity space" approach revealed that the root plasticity of a single Arabidopsis accession exposed to distinct environ...
متن کامل