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Evolutionary plasticity of restorer-of-fertility-like proteins in rice
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SYSNO ASEP 0472791 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Evolutionary plasticity of restorer-of-fertility-like proteins in rice Author(s) Melonek, J. (AU)
Stone, James D. (BU-J)
Small, I. (AU)Article number 35152 Source Title Scientific Reports. - : Nature Publishing Group - ISSN 2045-2322
Roč. 6, Oct 24 (2016), s. 1-12Number of pages 12 s. Language eng - English Country GB - United Kingdom Keywords cytoplasmic male-sterility ; genome-wide analysis ; PPR protein Subject RIV EF - Botanics OECD category Plant sciences, botany Institutional support BU-J - RVO:67985939 UT WOS 000385917600001 EID SCOPUS 84992362179 DOI 10.1038/srep35152 Annotation Hybrid seed production in rice relies on cytoplasmic male sterility (CMS) induced by specific mitochondrial proteins, whose deleterious effects are suppressed by nuclear Restorer of Fertility (RF) genes. The majority of RF proteins belong to a specific clade of the RNA-binding pentatricopeptide repeat protein family. We have characterised 'restorer-of-fertility-like' (RFL) sequences from 13 Oryza genomes and the Brachypodium distachyon genome. The majority of the RFL sequences are found in genomic clusters located at two or three chromosomal loci with only a minor proportion being present as isolated genes. The RFL genomic cluster located on Oryza chromosome 10, the location of almost all known active rice RF genes, shows extreme variation in structure and gene content between species. We show evidence for homologous recombination events as an efficient mechanism for generating the huge repertoire of RNA sequence recognition motifs within RFL proteins and a major driver of RFL sequence evolution. The RFL sequences identified here will improve our understanding of the molecular basis of CMS and fertility restoration in plants and will accelerate the development of new breeding strategies. Workplace Institute of Botany Contact Martina Bartošová, martina.bartosova@ibot.cas.cz, ibot@ibot.cas.cz, Tel.: 271 015 242 ; Marie Jakšová, marie.jaksova@ibot.cas.cz, Tel.: 384 721 156-8 Year of Publishing 2017
Number of the records: 1