Journal Article

The Capsella rubella genome and the genomic consequences of rapid mating system evolution

Colby-Sawyer College ; Partenaires INRAE, Uppsala University, Chapman, Jarrod, U.S. Department of Energy ; Joint Genome Institute (JGI), Mandáková, Terezie, Department of Evolutionary Biology ; Uppsala University, Guo, Ya-Long, Gregor Mendel Institute of Molecular Plant Biology (GMI) ; Austrian Academy of Sciences (OeAW), Department of Evolution and Ecology ; University of California [Davis] (UC Davis) ; University of California (UC)-University of California (UC), Department of Ecology and Evolutionary Biology ; Princeton University, Department of Plant Sciences ; University of California [Davis] (UC Davis) ; University of California (UC)-University of California (UC), Hudson Alpha Institute for Biotechnology, Schmutz, Jeremy, Slotte, Tanja, Blanchette, Mathieu, Agren, J Arvid, Steige, Kim, Rokhsar, Daniel, Takuno, Shohei, Escobar, Juan S, Grimwood, Jane, Masaryk University [Brno] = Masarykova univerzita [Brno] = Université Masaryk [Brno] (MU / MUNI), Vello, Emilio, Unité de Recherche Génomique Info (URGI) ; Institut National de l

2013

Overview

The shift from outcrossing to selfing is common in flowering plants, but the genomic consequences and the speed at which they emerge remain poorly understood. An excellent model for understanding the evolution of self fertilization is provided by Capsella rubella, which became self compatible <200,000 years ago. We report a C. rubella reference genome sequence and compare RNA expression and polymorphism patterns between C. rubella and its outcrossing progenitor Capsella grandiflora. We found a clear shift in the expression of genes associated with flowering phenotypes, similar to that seen in Arabidopsis, in which self fertilization evolved about 1 million years ago. Comparisons of the two Capsella species showed evidence of rapid genome-wide relaxation of purifying selection in C. rubella without a concomitant change in transposable element abundance. Overall we document that the transition to selfing may be typified by parallel shifts in gene expression, along with a measurable reduction of purifying selection.

• Publisher: Nature Publishing Group,CCSD,Nature Publishing Group US
• Subject: 631/208/212/2019 / Advantages / Agriculture / Animal Genetics and Genomics / Arabidopsis / Arabidopsis - genetics / Biomedicine / Cancer Research / Capsella / Capsella - genetics / Capsella rubella / Chromosomes / Evolution, Molecular / Fertilization - genetics / Fertilization - physiology / Fertilization of plants / Flowering plants / Flowers & plants / Gene expression / Gene Function / Genes, Plant / Genetic aspects / Genetics / Genome, Plant - physiology / Genomes / Genomics / Human Genetics / letter / Life Sciences / Molecular Sequence Data / Pollination - genetics / Pollination - physiology / Ribosomal DNA / Rubella / Self-fertilization / Self-Fertilization - genetics / Sequence Analysis, DNA / Time Factors / Vegetal Biology
• ISBN: 0003210052000