Resolving the Phylogeny of the Olive Family (Oleaceae): Confronting Information from Organellar and Nuclear Genomes
The olive family, Oleaceae, is a group of woody plants comprising 28 genera and ca. 700 species, distributed on all continents (except Antarctica) in both temperate and tropical environments. It includes several genera of major economic and ecological importance such as olives, ash trees, jasmines,...
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MDPI AG
2020-12-01
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| Series: | Genes |
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| Online Access: | https://www.mdpi.com/2073-4425/11/12/1508 |
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| author | Julia Dupin Pauline Raimondeau Cynthia Hong-Wa Sophie Manzi Myriam Gaudeul Guillaume Besnard |
| author_facet | Julia Dupin Pauline Raimondeau Cynthia Hong-Wa Sophie Manzi Myriam Gaudeul Guillaume Besnard |
| author_sort | Julia Dupin |
| collection | DOAJ |
| description | The olive family, Oleaceae, is a group of woody plants comprising 28 genera and ca. 700 species, distributed on all continents (except Antarctica) in both temperate and tropical environments. It includes several genera of major economic and ecological importance such as olives, ash trees, jasmines, forsythias, osmanthuses, privets and lilacs. The natural history of the group is not completely understood yet, but its diversification seems to be associated with polyploidisation events and the evolution of various reproductive and dispersal strategies. In addition, some taxonomical issues still need to be resolved, particularly in the paleopolyploid tribe Oleeae. Reconstructing a robust phylogenetic hypothesis is thus an important step toward a better comprehension of Oleaceae’s diversity. Here, we reconstructed phylogenies of the olive family using 80 plastid coding sequences, 37 mitochondrial genes, the complete nuclear ribosomal cluster and a small multigene family encoding phytochromes (<i>phyB</i> and <i>phyE</i>) of 61 representative species. Tribes and subtribes were strongly supported by all phylogenetic reconstructions, while a few Oleeae genera are still polyphyletic (<i>Chionanthus, Olea, Osmanthus, Nestegis</i>) or paraphyletic (<i>Schrebera</i>, <i>Syringa</i>). Some phylogenetic relationships among tribes remain poorly resolved with conflicts between topologies reconstructed from different genomic regions. The use of nuclear data remains an important challenge especially in a group with ploidy changes (both paleo- and neo-polyploids). This work provides new genomic datasets that will assist the study of the biogeography and taxonomy of the whole Oleaceae. |
| first_indexed | 2024-03-10T14:01:40Z |
| format | Article |
| id | doaj.art-0c6c3e1717a846ae9f9ef4259139fd3c |
| institution | Directory Open Access Journal |
| issn | 2073-4425 |
| language | English |
| last_indexed | 2024-03-10T14:01:40Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Genes |
| spelling | doaj.art-0c6c3e1717a846ae9f9ef4259139fd3c2023-11-21T01:02:38ZengMDPI AGGenes2073-44252020-12-011112150810.3390/genes11121508Resolving the Phylogeny of the Olive Family (Oleaceae): Confronting Information from Organellar and Nuclear GenomesJulia Dupin0Pauline Raimondeau1Cynthia Hong-Wa2Sophie Manzi3Myriam Gaudeul4Guillaume Besnard5Laboratoire Evolution & Diversité Biologique (EDB, UMR 5174), CNRS/IRD/Université Toulouse III, 118 Route de Narbonne, 31062 Toulouse, FranceLaboratoire Evolution & Diversité Biologique (EDB, UMR 5174), CNRS/IRD/Université Toulouse III, 118 Route de Narbonne, 31062 Toulouse, FranceClaude E. Phillips Herbarium, Delaware State University, 1200 N. Dupont Hwy, Dover, DE 19901-2277, USALaboratoire Evolution & Diversité Biologique (EDB, UMR 5174), CNRS/IRD/Université Toulouse III, 118 Route de Narbonne, 31062 Toulouse, FranceInstitut de Systématique Evolution Biodiversité (ISYEB), Muséum National d’Histoire Naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, 57 rue Cuvier, CP39, 75005 Paris, FranceLaboratoire Evolution & Diversité Biologique (EDB, UMR 5174), CNRS/IRD/Université Toulouse III, 118 Route de Narbonne, 31062 Toulouse, FranceThe olive family, Oleaceae, is a group of woody plants comprising 28 genera and ca. 700 species, distributed on all continents (except Antarctica) in both temperate and tropical environments. It includes several genera of major economic and ecological importance such as olives, ash trees, jasmines, forsythias, osmanthuses, privets and lilacs. The natural history of the group is not completely understood yet, but its diversification seems to be associated with polyploidisation events and the evolution of various reproductive and dispersal strategies. In addition, some taxonomical issues still need to be resolved, particularly in the paleopolyploid tribe Oleeae. Reconstructing a robust phylogenetic hypothesis is thus an important step toward a better comprehension of Oleaceae’s diversity. Here, we reconstructed phylogenies of the olive family using 80 plastid coding sequences, 37 mitochondrial genes, the complete nuclear ribosomal cluster and a small multigene family encoding phytochromes (<i>phyB</i> and <i>phyE</i>) of 61 representative species. Tribes and subtribes were strongly supported by all phylogenetic reconstructions, while a few Oleeae genera are still polyphyletic (<i>Chionanthus, Olea, Osmanthus, Nestegis</i>) or paraphyletic (<i>Schrebera</i>, <i>Syringa</i>). Some phylogenetic relationships among tribes remain poorly resolved with conflicts between topologies reconstructed from different genomic regions. The use of nuclear data remains an important challenge especially in a group with ploidy changes (both paleo- and neo-polyploids). This work provides new genomic datasets that will assist the study of the biogeography and taxonomy of the whole Oleaceae.https://www.mdpi.com/2073-4425/11/12/1508herbariummuseum collectionmitochondrial DNAplastomenuclear ribosomal DNAphytochromes |
| spellingShingle | Julia Dupin Pauline Raimondeau Cynthia Hong-Wa Sophie Manzi Myriam Gaudeul Guillaume Besnard Resolving the Phylogeny of the Olive Family (Oleaceae): Confronting Information from Organellar and Nuclear Genomes Genes herbarium museum collection mitochondrial DNA plastome nuclear ribosomal DNA phytochromes |
| title | Resolving the Phylogeny of the Olive Family (Oleaceae): Confronting Information from Organellar and Nuclear Genomes |
| title_full | Resolving the Phylogeny of the Olive Family (Oleaceae): Confronting Information from Organellar and Nuclear Genomes |
| title_fullStr | Resolving the Phylogeny of the Olive Family (Oleaceae): Confronting Information from Organellar and Nuclear Genomes |
| title_full_unstemmed | Resolving the Phylogeny of the Olive Family (Oleaceae): Confronting Information from Organellar and Nuclear Genomes |
| title_short | Resolving the Phylogeny of the Olive Family (Oleaceae): Confronting Information from Organellar and Nuclear Genomes |
| title_sort | resolving the phylogeny of the olive family oleaceae confronting information from organellar and nuclear genomes |
| topic | herbarium museum collection mitochondrial DNA plastome nuclear ribosomal DNA phytochromes |
| url | https://www.mdpi.com/2073-4425/11/12/1508 |
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