A Species-Wide Inventory of NLR Genes and Alleles in Arabidopsis thaliana

Autor: Anna-Lena Van de Weyer, Jonathan D. G. Jones, Kamil Witek, Jeffery L. Dangl, Oliver J. Furzer, Detlef Weigel, Volkan Cevik, Freddy Monteiro, Felix Bemm, Marc T. Nishimura
Přispěvatelé: Gordon and Betty Moore Foundation, Two Blades Foundation, Gatsby Charitable Foundation, Biotechnology and Biological Sciences Research Council (UK), National Science Foundation (US), European Research Council, Max Planck Society
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Cell
Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona
Digital.CSIC. Repositorio Institucional del CSIC
instname
Recercat. Dipósit de la Recerca de Catalunya
Recercat: Dipósit de la Recerca de Catalunya
Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
ISSN: 1097-4172
0092-8674
Popis: Summary Infectious disease is both a major force of selection in nature and a prime cause of yield loss in agriculture. In plants, disease resistance is often conferred by nucleotide-binding leucine-rich repeat (NLR) proteins, intracellular immune receptors that recognize pathogen proteins and their effects on the host. Consistent with extensive balancing and positive selection, NLRs are encoded by one of the most variable gene families in plants, but the true extent of intraspecific NLR diversity has been unclear. Here, we define a nearly complete species-wide pan-NLRome in Arabidopsis thaliana based on sequence enrichment and long-read sequencing. The pan-NLRome largely saturates with approximately 40 well-chosen wild strains, with half of the pan-NLRome being present in most accessions. We chart NLR architectural diversity, identify new architectures, and quantify selective forces that act on specific NLRs and NLR domains. Our study provides a blueprint for defining pan-NLRomes.
Graphical Abstract
Highlights • Species-wide NLR diversity is high but not unlimited • A large fraction of NLR diversity is recovered with 40–50 accessions • Presence/absence variation in NLRs is widespread, resulting in a mosaic population • A high diversity of NLR-integrated domains favor known virulence targets
In plants, NLR proteins are important intracellular receptors with roles in innate immunity and disease resistance. This work provides a panoramic view of this diverse and complicated gene family in the model species A. thaliana and provides a foundation for the identification and functional study of disease-resistance genes in agronomically important species with complex genomes.
Databáze: OpenAIRE