Deutsch
 
Benutzerhandbuch Datenschutzhinweis Impressum Kontakt
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

Novel allelic variants in ACD6 cause hybrid necrosis in local collection of Arabidopsis thaliana

MPG-Autoren

Swiadek,  Magdalena
Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

Proost,  Sebastian
Max Planck Institute of Molecular Plant Physiology, Max Planck Society;
University of Potsdam;

Sieh,  Daniela
Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

Yu,  Jing
Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

Todesco,  Marco
Max Planck Institute for Developmental Biology, Max Planck Society;

Jorzig,  Christian
Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

Cubillos,  Andres Eduardo Rodriguez
Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

Ploetner,  Bjoern
Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

Nikoloski,  Zoran
Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

Chae,  Eunyoung
Max Planck Institute for Developmental Biology, Max Planck Society;

Giavalisco,  Patrick
Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

Fischer,  Axel
Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

Schroeder,  Florian
Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

Kim,  Sang-Tae
Max Planck Institute for Developmental Biology, Max Planck Society;

Weigel,  Detlef
Max Planck Institute for Developmental Biology, Max Planck Society;

Laitinen,  Roosa A. E.
Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Swiadek, M., Proost, S., Sieh, D., Yu, J., Todesco, M., Jorzig, C., et al. (2017). Novel allelic variants in ACD6 cause hybrid necrosis in local collection of Arabidopsis thaliana. New Phytologist, 213(2), 900-915. doi:10.1111/nph.14155.


Zitierlink: http://hdl.handle.net/21.11116/0000-0002-04FC-E
Zusammenfassung
Hybrid necrosis is a common type of hybrid incompatibility in plants. This phenomenon is caused by deleterious epistatic interactions, resulting in spontaneous activation of plant defenses associated with leaf necrosis, stunted growth and reduced fertility in hybrids. Specific combinations of alleles of ACCELERATED CELL DEATH 6 (ACD6) have been shown to be a common cause of hybrid necrosis in Arabidopsis thaliana. Increased ACD6 activity confers broad-spectrum resistance against biotrophic pathogens but reduces biomass production. We generated 996 crosses among individuals derived from a single collection area around Tubingen (Germany) and screened them for hybrid necrosis. Necrotic hybrids were further investigated by genetic linkage, amiRNA silencing, genomic complementation and metabolic profiling. Restriction site associated DNA (RAD)-sequencing was used to understand genetic diversity in the collection sites containing necrosis-inducing alleles. Novel combinations of ACD6 alleles found in neighbouring stands were found to activate the A. thaliana immune system. In contrast to what we observed in controlled conditions, necrotic hybrids did not show reduced fitness in the field. Metabolic profiling revealed changes associated with the activation of the immune system in ACD6-dependent hybrid necrosis. This study expands our current understanding of the active role of ACD6 in mediating trade-offs between defense responses and growth in A. thaliana.