Phylogenomics of the olive tree (Olea europaea) reveals the relative contribution of ancient allo- and autopolyploidization events
Abstract Background Polyploidization is one of the major evolutionary processes that shape eukaryotic genomes, being particularly common in plants. Polyploids can arise through direct genome doubling within a species (autopolyploidization) or through the merging of genomes from distinct species afte...
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| Format: | Article |
| Language: | English |
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BMC
2018-01-01
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| Series: | BMC Biology |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s12915-018-0482-y |
| _version_ | 1811215932431794176 |
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| author | Irene Julca Marina Marcet-Houben Pablo Vargas Toni Gabaldón |
| author_facet | Irene Julca Marina Marcet-Houben Pablo Vargas Toni Gabaldón |
| author_sort | Irene Julca |
| collection | DOAJ |
| description | Abstract Background Polyploidization is one of the major evolutionary processes that shape eukaryotic genomes, being particularly common in plants. Polyploids can arise through direct genome doubling within a species (autopolyploidization) or through the merging of genomes from distinct species after hybridization (allopolyploidization). The relative contribution of both mechanisms in plant evolution is debated. Here we used phylogenomics to dissect the tempo and mode of duplications in the genome of the olive tree (Olea europaea), one of the first domesticated Mediterranean fruit trees. Results Our results depict a complex scenario involving at least three past polyploidization events, of which two—at the bases of the family Oleaceae and the tribe Oleeae, respectively—are likely to be the result of ancient allopolyploidization. A more recent polyploidization involves specifically the olive tree and relatives. Conclusion Our results show the power of phylogenomics to distinguish between allo- and auto polyploidization events and clarify the contributions of duplications in the evolutionary history of the olive tree. |
| first_indexed | 2024-04-12T06:31:39Z |
| format | Article |
| id | doaj.art-ad42b2cbe16843ff9755f7057f37b2d1 |
| institution | Directory Open Access Journal |
| issn | 1741-7007 |
| language | English |
| last_indexed | 2024-04-12T06:31:39Z |
| publishDate | 2018-01-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Biology |
| spelling | doaj.art-ad42b2cbe16843ff9755f7057f37b2d12022-12-22T03:44:00ZengBMCBMC Biology1741-70072018-01-0116111510.1186/s12915-018-0482-yPhylogenomics of the olive tree (Olea europaea) reveals the relative contribution of ancient allo- and autopolyploidization eventsIrene Julca0Marina Marcet-Houben1Pablo Vargas2Toni Gabaldón3Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and TechnologyCentre for Genomic Regulation (CRG), The Barcelona Institute of Science and TechnologyReal Jardín Botánico de Madrid (CSIC-RJB)Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and TechnologyAbstract Background Polyploidization is one of the major evolutionary processes that shape eukaryotic genomes, being particularly common in plants. Polyploids can arise through direct genome doubling within a species (autopolyploidization) or through the merging of genomes from distinct species after hybridization (allopolyploidization). The relative contribution of both mechanisms in plant evolution is debated. Here we used phylogenomics to dissect the tempo and mode of duplications in the genome of the olive tree (Olea europaea), one of the first domesticated Mediterranean fruit trees. Results Our results depict a complex scenario involving at least three past polyploidization events, of which two—at the bases of the family Oleaceae and the tribe Oleeae, respectively—are likely to be the result of ancient allopolyploidization. A more recent polyploidization involves specifically the olive tree and relatives. Conclusion Our results show the power of phylogenomics to distinguish between allo- and auto polyploidization events and clarify the contributions of duplications in the evolutionary history of the olive tree.http://link.springer.com/article/10.1186/s12915-018-0482-yOliveLamialesPolyploidyPhylogenomicsHybridization |
| spellingShingle | Irene Julca Marina Marcet-Houben Pablo Vargas Toni Gabaldón Phylogenomics of the olive tree (Olea europaea) reveals the relative contribution of ancient allo- and autopolyploidization events BMC Biology Olive Lamiales Polyploidy Phylogenomics Hybridization |
| title | Phylogenomics of the olive tree (Olea europaea) reveals the relative contribution of ancient allo- and autopolyploidization events |
| title_full | Phylogenomics of the olive tree (Olea europaea) reveals the relative contribution of ancient allo- and autopolyploidization events |
| title_fullStr | Phylogenomics of the olive tree (Olea europaea) reveals the relative contribution of ancient allo- and autopolyploidization events |
| title_full_unstemmed | Phylogenomics of the olive tree (Olea europaea) reveals the relative contribution of ancient allo- and autopolyploidization events |
| title_short | Phylogenomics of the olive tree (Olea europaea) reveals the relative contribution of ancient allo- and autopolyploidization events |
| title_sort | phylogenomics of the olive tree olea europaea reveals the relative contribution of ancient allo and autopolyploidization events |
| topic | Olive Lamiales Polyploidy Phylogenomics Hybridization |
| url | http://link.springer.com/article/10.1186/s12915-018-0482-y |
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