@article{66badd79ef804a3fa7f1d033d22c9ac9,
title = "High-Throughput Genome-Wide Genotyping To Optimize the Use of Natural Genetic Resources in the Grassland Species Perennial Ryegrass (Lolium perenne L.)",
abstract = "The natural genetic diversity of agricultural species is an essential genetic resource for breeding programs aiming to improve their ecosystem and production services. A large natural ecotype diversity is usually available for most grassland species. This could be used to recombine natural climatic adaptations and agronomic value to create improved populations of grassland species adapted to future regional climates. However describing natural genetic resources can be long and costly. Molecular markers may provide useful information to help this task. This opportunity was investigated for Lolium perenne L., using a set of 385 accessions from the natural diversity of this species collected right across Europe and provided by genebanks of several countries. For each of these populations, genotyping provided the allele frequencies of 189,781 SNP markers. GWAS were implemented for over 30 agronomic and/or putatively adaptive traits recorded in three climatically contrasted locations (France, Belgium, Germany). Significant associations were detected for hundreds of markers despite a strong confounding effect of the genetic background; most of them pertained to phenology traits. It is likely that genetic variability in these traits has had an important contribution to environmental adaptation and ecotype differentiation. Genomic prediction models calibrated using natural diversity were found to be highly effective to describe natural populations for almost all traits as well as commercial synthetic populations for some important traits such as disease resistance, spring growth or phenological traits. These results will certainly be valuable information to help the use of natural genetic resources of other species.",
keywords = "association study, forage species, genebank, genomic prediction, GenPred, GWAS, natural diversity, Shared data resources, Forage species, Prediction, Association study, Genebank, Natural diversity, Resources, Genomic, Shared data, Grassland, Lolium/genetics, Europe, Plant Breeding, Genotype, Genetic Variation, Ecosystem, Germany",
author = "Thomas Keep and Sampoux, {Jean Paul} and Blanco-Pastor, {Jos{\'e} Luis} and Dehmer, {Klaus J.} and Hegarty, {Matthew J.} and Thomas Ledauphin and Isabelle Litrico and Hilde Muylle and Isabel Rold{\'a}n-Ruiz and Roschanski, {Anna M.} and Tom Ruttink and Fabien Surault and Evelin Willner and Philippe Barre",
note = "Funding Information: T.Keep has received the support from the Nouvelle-Aquitaine administrative region (50% of funding) and from the Institut National de la Recherche Agronomique (25%: INRA – m{\'e}taprogramme ACCAF; 25%: BAP – Plant Biology and Breeding research division) in France. This work was funded in the frame of the project GrassLandscape awarded by the 2014 FACCE‐JPI ERA‐NET+ call Climate Smart Agriculture. Funding was granted by the EC (grant agreement nº 618105), by the Agence Nationale de la Recherche (ANR) and the Institut National de la Recherche Agronomique (INRA – m{\'e}taprogramme ACCAF) in France, the Biotechnology and Biological Sciences Research Council (BBSRC) in the United‐Kingdom, the Bundesantalt f{\"u}r Landwirtschaft und Ern{\"a}hrung (BLE) in Germany. The computational resources (Stevin Supercomputer Infrastructure) and services used for genotype calling were provided by the VSC (Flemish Supercomputer Center), funded by Ghent University in Belgium, FWO and the Flemish Government – department EWI. The authors thank the curators from the genebanks that provided perennial ryegrass seed samples for the needs of the project and staff from European agronomic research institutes who contributed to in situ collections in 2015. Perennial ryegrass is one of the plant species covered under the Multilateral System of the International Treaty on Plant Genetic Resources for Food and Agriculture. All genetic materials used in this study were made available to the authors after signature of a Standard Material Transfer Agreement (SMTA) by the provider and the recipient. Implementation and signature of a SMTA provides compliance with the provisions of the Nagoya Protocol for parties wishing to provide and receive genetic material under the Multilateral System. The authors thank greatly all the technical staff involved in the project from IBERS, ILVO, INRAE and IPK. The authors declare no conflict of interest. Funding Information: T.Keep has received the support from the Nouvelle-Aquitaine administrative region (50% of funding) and from the Institut National de la Recherche Agronomique (25%: INRA - m{\'e}taprogramme ACCAF; 25%: BAP - Plant Biology and Breeding research division) in France. This work was funded in the frame of the project GrassLandscape awarded by the 2014 FACCE‐JPI ERA‐NET+ call Climate Smart Agriculture. Funding was granted by the EC (grant agreement nº618105), by the Agence Nationale de la Recherche (ANR) and the Institut National de la Recherche Agronomique (INRA - m{\'e}taprogramme ACCAF) in France, the Biotechnology and Biological Sciences Research Council (BBSRC) in the United‐Kingdom, the Bundesantalt f{\"u}r Landwirtschaft und Ern{\"a}hrung (BLE) in Germany. The computational resources (Stevin Supercomputer Infrastructure) and services used for genotype calling were provided by the VSC (Flemish Supercomputer Center), funded by Ghent University in Belgium, FWO and the Flemish Government - department EWI. The authors thank the curators from the genebanks that provided perennial ryegrass seed samples for the needs of the project and staff from European agronomic research institutes who contributed to in situ collections in 2015. Perennial ryegrass is one of the plant species covered under the Multilateral System of the International Treaty on Plant Genetic Resources for Food and Agriculture. All genetic materials used in this study were made available to the authors after signature of a Standard Material Transfer Agreement (SMTA) by the provider and the recipient. Implementation and signature of a SMTA provides compliance with the provisions of the Nagoya Protocol for parties wishing to provide and receive genetic material under the Multilateral System. The authors thank greatly all the technical staff involved in the project from IBERS, ILVO, INRAE and IPK. The authors declare no conflict of interest. Publisher Copyright: Copyright {\textcopyright} 2020 Keep et al.",
year = "2020",
month = sep,
day = "1",
doi = "10.1534/g3.120.401491",
language = "English",
volume = "10",
pages = "3347--3364",
journal = "G3 (Bethesda, Md.)",
issn = "2160-1836",
publisher = "Genetics Society of America",
number = "9",
}