Repeat-sequence turnover shifts fundamentally in species with large genomes
| Autor: | Jelena Mlinarec, Laura J. Kelly, Pavel Neumann, Wencai Wang, Andrew R. Leitch, Jiří Macas, Petr Novák, Jaume Pellicer, Andrea Koblížková, Aleš Kovařík, Steven Dodsworth, Ilia J. Leitch, Maïté S. Guignard |
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| Přispěvatelé: | Natural Environment Research Council (UK), Academy of Sciences of the Czech Republic, Ministerio de Ciencia y Tecnología (España), China Scholarship Council |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine Retroelements Range (biology) Repeat sequence Plant Science Biology Flow Cytometry 01 natural sciences Genome Magnoliopsida 03 medical and health sciences Cycadopsida 030104 developmental biology Evolutionary biology Plant species Fundamental change Plant traits Genome size Gene Genome Plant Phylogeny Repetitive Sequences Nucleic Acid 010606 plant biology & botany |
| Zdroj: | Digital.CSIC: Repositorio Institucional del CSIC Consejo Superior de Investigaciones Científicas (CSIC) Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 2055-0278 6007-7344 |
| DOI: | 10.1038/s41477-020-00785-x |
| Popis: | Given the 2,400-fold range of genome sizes (0.06–148.9 Gbp (gigabase pair)) of seed plants (angiosperms and gymnosperms) with a broadly similar gene content (amounting to approximately 0.03 Gbp), the repeat-sequence content of the genome might be expected to increase with genome size, resulting in the largest genomes consisting almost entirely of repetitive sequences. Here we test this prediction, using the same bioinformatic approach for 101 species to ensure consistency in what constitutes a repeat. We reveal a fundamental change in repeat turnover in genomes above around 10 Gbp, such that species with the largest genomes are only about 55% repetitive. Given that genome size influences many plant traits, habits and life strategies, this fundamental shift in repeat dynamics is likely to affect the evolutionary trajectory of species lineages. We thank Natural Environment Research Council (NE/G020256/1), the Czech Academy of Sciences (RVO:60077344) and Ramón y Cajal Fellowship (RYC-2017-2274) funded by the Ministerio de Ciencia y Tecnología (Gobierno de España) for support. We also thank Natural Environment Research Council for funding a studentship to S.D. and the China Scholarship Council for funding W.W. Main Methods Data availability Code availability References Acknowledgements Author information Ethics declarations Additional information Extended data Supplementary information Rights and permissions About this article Further reading |
| Databáze: | OpenAIRE |
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