Prosiectau fesul blwyddyn
Crynodeb
Our understanding of polyploid genome evolution is constrained because we cannot know the exact founders of a particular polyploid. To differentiate between founder effects and post polyploidization evolution, we use a pan-genomic approach to study the allotetraploid Brachypodium hybridum and its diploid progenitors. Comparative analysis suggests that most B. hybridum whole gene presence/absence variation is part of the standing variation in its diploid progenitors. Analysis of nuclear single nucleotide variants, plastomes and k-mers associated with retrotransposons reveals two independent origins for B. hybridum, ~1.4 and ~0.14 million years ago. Examination of gene expression in the younger B. hybridum lineage reveals no bias in overall subgenome expression. Our results are consistent with a gradual accumulation of genomic changes after polyploidization and a lack of subgenome expression dominance. Significantly, if we did not use a pan-genomic approach, we would grossly overestimate the number of genomic changes attributable to post polyploidization evolution.
Iaith wreiddiol | Saesneg |
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Rhif yr erthygl | 3670 |
Nifer y tudalennau | 16 |
Cyfnodolyn | Nature Communications |
Cyfrol | 11 |
Rhif cyhoeddi | 1 |
Dynodwyr Gwrthrych Digidol (DOIs) | |
Statws | Cyhoeddwyd - 29 Gorff 2020 |
Ôl bys
Gweld gwybodaeth am bynciau ymchwil 'Gradual polyploid genome evolution revealed by pan-genomic analysis of Brachypodium hybridum and its diploid progenitors'. Gyda’i gilydd, maen nhw’n ffurfio ôl bys unigryw.Prosiectau
- 2 Wedi Gorffen
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BBSRC Core Strategic Programme in Resilient Crops: Oats
01 Ebr 2017 → 31 Maw 2022
Prosiect: Ymchwil a ariannwyd yn allanol
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Bioinformatics and genomic and phenomic platform development
Armstead, I., Boyle, R., Doonan, J., Fernandez Fuentes, N., Gay, A., Hegarty, M., Huang, L., Neal, M., Swain, M. & Thomas, I.
Biotechnology and Biological Sciences Research Council
01 Ebr 2012 → 31 Maw 2017
Prosiect: Ymchwil a ariannwyd yn allanol