THE LEAVES GOT IT RIGHT AGAIN: DNA PHYLOGENETICS SUPPORTS A SISTER-GROUP RELATIONSHIP BETWEEN EURYSTYLES AND LANKESTERELLA (ORCHIDACEAE: SPIRANTHINAE)
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| Format: | Artículo científico |
| Language: | en |
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Universidad de Costa Rica
2011
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| author | Gerardo A. Salazar |
| author_facet | Gerardo A. Salazar |
| contents | THE LEAVES GOT IT RIGHT AGAIN: DNA PHYLOGENETICS SUPPORTS A SISTER-GROUP RELATIONSHIP BETWEEN EURYSTYLES AND LANKESTERELLA (ORCHIDACEAE: SPIRANTHINAE) Gerardo A. Salazar Robert L. Dressler Biología Eurystyles Orchidaceae Spiranthinae Lankesterella molecular phylogeny In spite of noticeable non-floral similarities such as their unusual epiphytic habit and vegetative morphology, Eurystyles and Lankesterella have been regarded by taxonomists who rank floral characters above all other sources of information as only distantly related. Here we assess the phylogenetic relationships of these genera, analyzing over 4500 characters of nuclear (nrITS) and plastid (matK-trnK, trnL-trnF) DNA sequences from 29 species/22 genera of Spiranthinae (plus appropriate outgroups); three structurally distinctive species of Eurystyles and two of Lankesterella were included. Both our parsimony and Bayesian phylogenetic analyses recovered Eurystyles and Lankesterella as sister taxa with strong internal support. The Eurystyles/Lankesterella clade is in turn supported as sister to the “Spiranthes clade.” Our results agree with previous interpretations of a close relationship between these two genera based on their shared epiphytic habit and similar vegetative morphology, indicating that floral morphology is evolutionarily labile in these groups and thus less reliable as an indicator of phylogenetic relationship than more conservative vegetative morphology. 2011 artículo científico 1409-3871 https://www.redalyc.org/articulo.oa?id=44339822017 en http://www.redalyc.org/revista.oa?id=443 Lankesteriana International Journal on Orchidology application/pdf Universidad de Costa Rica Lankesteriana International Journal on Orchidology (Costa Rica) Num.3 Vol.11 |
| format | Artículo científico |
| id | redalyc_44339822017 |
| institution | Redalyc |
| language | en |
| publishDate | 2011 |
| publisher | Universidad de Costa Rica |
| spellingShingle | THE LEAVES GOT IT RIGHT AGAIN: DNA PHYLOGENETICS SUPPORTS A SISTER-GROUP RELATIONSHIP BETWEEN EURYSTYLES AND LANKESTERELLA (ORCHIDACEAE: SPIRANTHINAE) Gerardo A. Salazar Biología Eurystyles Orchidaceae Spiranthinae Lankesterella molecular phylogeny THE LEAVES GOT IT RIGHT AGAIN: DNA PHYLOGENETICS SUPPORTS A SISTER-GROUP RELATIONSHIP BETWEEN EURYSTYLES AND LANKESTERELLA (ORCHIDACEAE: SPIRANTHINAE) Gerardo A. Salazar Robert L. Dressler Biología Eurystyles Orchidaceae Spiranthinae Lankesterella molecular phylogeny In spite of noticeable non-floral similarities such as their unusual epiphytic habit and vegetative morphology, Eurystyles and Lankesterella have been regarded by taxonomists who rank floral characters above all other sources of information as only distantly related. Here we assess the phylogenetic relationships of these genera, analyzing over 4500 characters of nuclear (nrITS) and plastid (matK-trnK, trnL-trnF) DNA sequences from 29 species/22 genera of Spiranthinae (plus appropriate outgroups); three structurally distinctive species of Eurystyles and two of Lankesterella were included. Both our parsimony and Bayesian phylogenetic analyses recovered Eurystyles and Lankesterella as sister taxa with strong internal support. The Eurystyles/Lankesterella clade is in turn supported as sister to the “Spiranthes clade.” Our results agree with previous interpretations of a close relationship between these two genera based on their shared epiphytic habit and similar vegetative morphology, indicating that floral morphology is evolutionarily labile in these groups and thus less reliable as an indicator of phylogenetic relationship than more conservative vegetative morphology. 2011 artículo científico 1409-3871 https://www.redalyc.org/articulo.oa?id=44339822017 en http://www.redalyc.org/revista.oa?id=443 Lankesteriana International Journal on Orchidology application/pdf Universidad de Costa Rica Lankesteriana International Journal on Orchidology (Costa Rica) Num.3 Vol.11 |
| title | THE LEAVES GOT IT RIGHT AGAIN: DNA PHYLOGENETICS SUPPORTS A SISTER-GROUP RELATIONSHIP BETWEEN EURYSTYLES AND LANKESTERELLA (ORCHIDACEAE: SPIRANTHINAE) |
| topic | Biología Eurystyles Orchidaceae Spiranthinae Lankesterella molecular phylogeny |
| url | https://www.redalyc.org/articulo.oa?id=44339822017 |