Phylogenetic relationships of American willows (Salix L., Salicaceae).
Salix L. is the largest genus in the family Salicaceae (450 species). Several classifications have been published, but taxonomic subdivision has been under continuous revision. Our goal is to establish the phylogenetic structure of the genus using molecular data on all American willows, using three...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2015-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC4399884?pdf=render |
| _version_ | 1818676320384581632 |
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| author | Aurélien Lauron-Moreau Frédéric E Pitre George W Argus Michel Labrecque Luc Brouillet |
| author_facet | Aurélien Lauron-Moreau Frédéric E Pitre George W Argus Michel Labrecque Luc Brouillet |
| author_sort | Aurélien Lauron-Moreau |
| collection | DOAJ |
| description | Salix L. is the largest genus in the family Salicaceae (450 species). Several classifications have been published, but taxonomic subdivision has been under continuous revision. Our goal is to establish the phylogenetic structure of the genus using molecular data on all American willows, using three DNA markers. This complete phylogeny of American willows allows us to propose a biogeographic framework for the evolution of the genus. Material was obtained for the 122 native and introduced willow species of America. Sequences were obtained from the ITS (ribosomal nuclear DNA) and two plastid regions, matK and rbcL. Phylogenetic analyses (parsimony, maximum likelihood, Bayesian inference) were performed on the data. Geographic distribution was mapped onto the tree. The species tree provides strong support for a division of the genus into two subgenera, Salix and Vetrix. Subgenus Salix comprises temperate species from the Americas and Asia, and their disjunction may result from Tertiary events. Subgenus Vetrix is composed of boreo-arctic species of the Northern Hemisphere and their radiation may coincide with the Quaternary glaciations. Sixteen species have ambiguous positions; genetic diversity is lower in subg. Vetrix. A molecular phylogeny of all species of American willows has been inferred. It needs to be tested and further resolved using other molecular data. Nonetheless, the genus clearly has two clades that have distinct biogeographic patterns. |
| first_indexed | 2024-12-17T08:41:36Z |
| format | Article |
| id | doaj.art-e7eb71d39d164304b98d9c7398f224ff |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-17T08:41:36Z |
| publishDate | 2015-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-e7eb71d39d164304b98d9c7398f224ff2022-12-21T21:56:19ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-01104e012196510.1371/journal.pone.0121965Phylogenetic relationships of American willows (Salix L., Salicaceae).Aurélien Lauron-MoreauFrédéric E PitreGeorge W ArgusMichel LabrecqueLuc BrouilletSalix L. is the largest genus in the family Salicaceae (450 species). Several classifications have been published, but taxonomic subdivision has been under continuous revision. Our goal is to establish the phylogenetic structure of the genus using molecular data on all American willows, using three DNA markers. This complete phylogeny of American willows allows us to propose a biogeographic framework for the evolution of the genus. Material was obtained for the 122 native and introduced willow species of America. Sequences were obtained from the ITS (ribosomal nuclear DNA) and two plastid regions, matK and rbcL. Phylogenetic analyses (parsimony, maximum likelihood, Bayesian inference) were performed on the data. Geographic distribution was mapped onto the tree. The species tree provides strong support for a division of the genus into two subgenera, Salix and Vetrix. Subgenus Salix comprises temperate species from the Americas and Asia, and their disjunction may result from Tertiary events. Subgenus Vetrix is composed of boreo-arctic species of the Northern Hemisphere and their radiation may coincide with the Quaternary glaciations. Sixteen species have ambiguous positions; genetic diversity is lower in subg. Vetrix. A molecular phylogeny of all species of American willows has been inferred. It needs to be tested and further resolved using other molecular data. Nonetheless, the genus clearly has two clades that have distinct biogeographic patterns.http://europepmc.org/articles/PMC4399884?pdf=render |
| spellingShingle | Aurélien Lauron-Moreau Frédéric E Pitre George W Argus Michel Labrecque Luc Brouillet Phylogenetic relationships of American willows (Salix L., Salicaceae). PLoS ONE |
| title | Phylogenetic relationships of American willows (Salix L., Salicaceae). |
| title_full | Phylogenetic relationships of American willows (Salix L., Salicaceae). |
| title_fullStr | Phylogenetic relationships of American willows (Salix L., Salicaceae). |
| title_full_unstemmed | Phylogenetic relationships of American willows (Salix L., Salicaceae). |
| title_short | Phylogenetic relationships of American willows (Salix L., Salicaceae). |
| title_sort | phylogenetic relationships of american willows salix l salicaceae |
| url | http://europepmc.org/articles/PMC4399884?pdf=render |
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