1. Analysis of the Rdr1 gene family in different Rosaceae genomes reveals an origin of an R-gene cluster after the split of Rubeae within the Rosoideae subfamily
- Author
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Menz, Ina, Lakhwani, Deepika, Clotault, Jérémy, Linde, Marcus, Foucher, Fabrice, Debener, Thomas, Leibniz University Hannover, Institut de Recherche en Horticulture et Semences (IRHS), Université d'Angers (UA)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and Open Access fund of Leibniz Universität Hannover.
- Subjects
[SDV.SA]Life Sciences [q-bio]/Agricultural sciences ,[SDV.BIO]Life Sciences [q-bio]/Biotechnology ,Plant Science ,Plant Genetics ,Database and Informatics Methods ,Homologous Chromosomes ,rosa ,ressource génétique végétale ,Dewey Decimal Classification::500 | Naturwissenschaften::580 | Pflanzen (Botanik) ,Plant Genomics ,cartographie chromosomique ,Flowering Plants ,Roses ,Phylogeny ,Data Management ,Plant Proteins ,Vegetal Biology ,Chromosome Biology ,Eukaryota ,Phylogenetic Analysis ,Genomics ,Plants ,[SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics ,Agricultural sciences ,Botanique ,Phylogenetics ,ddc:580 ,Multigene Family ,Medicine ,Engineering and Technology ,Sequence Analysis ,Research Article ,Biotechnology ,Rose ,Botanics ,Computer and Information Sciences ,Bioinformatics ,Science ,Bioengineering ,Biotechnologies ,Research and Analysis Methods ,Chromosomes ,Chromosomes, Plant ,Evolution, Molecular ,horticulture ornementale ,Amino Acid Sequence Analysis ,Genomic Medicine ,malus ,Genetics ,[SDV.BV]Life Sciences [q-bio]/Vegetal Biology ,Evolutionary Systematics ,diversité phylogénétique ,Rosaceae ,Taxonomy ,Evolutionary Biology ,Organisms ,Biology and Life Sciences ,Computational Biology ,cluster de gènes ,Cell Biology ,Genome Analysis ,RNA-Dependent RNA Polymerase ,rosoideae ,Rdr1 gene ,cartographie du génome ,Plant Biotechnology ,Sequence Alignment ,Biologie végétale ,Sciences agricoles ,analyse génétique ,amélioration des plantes - Abstract
International audience; The Rdr1 gene confers resistance to black spot in roses and belongs to a large TNL gene family, which is organized in two major clusters at the distal end of chromosome 1. We used the recently available chromosome scale assemblies for the R. chinensis ‘Old Blush’ genome, re-sequencing data for nine rose species and genome data for Fragaria, Rubus, Malus and Prunus to identify Rdr1 homologs from different taxa within Rosaceae. Members of the Rdr1 gene family are organized into two major clusters in R. chinensis and at a syntenic location in the Fragaria genome. Phylogenetic analysis indicates that the two clusters existed prior to the split of Rosa and Fragaria and that one cluster has a more recent origin than the other. Genes belonging to cluster 2, such as the functional Rdr1 gene muRdr1A, were subject to a faster evolution than genes from cluster 1. As no Rdr1 homologs were found in syntenic positions for Prunus persica, Malus x domestica and Rubus occidentalis, a translocation of the Rdr1 clusters to the current positions probably happened after the Rubeae split from other groups within the Rosoideae approximately 70–80 million years ago during the Cretaceous period.
- Published
- 2020