A phylogenetic analysis of the genus Pleurothallis, with emphasis on Pleurothallis subsection Macrophyllae-Fasciculatae, using nuclear ITS and chloroplast DNA sequencing
Several revisions of the genus Pleurothallis have been proposed. Luer has proposed that Pleurothallis species in subgenus Scopula be segregated into the genera Colombiana and Ancipitia. Szlachetko and Margonska (2001) proposed the genus Zosterophyllanthos for Pleurothallis subsection Macrophyllae-Fa...
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| Formato: | Online |
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Universidad de Costa Rica
2011
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| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/lankesteriana/article/view/18304 |
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LANKESTERIANA183042022-07-20T01:12:58Z A phylogenetic analysis of the genus Pleurothallis, with emphasis on Pleurothallis subsection Macrophyllae-Fasciculatae, using nuclear ITS and chloroplast DNA sequencing A phylogenetic analysis of the genus Pleurothallis, with emphasis on Pleurothallis subsection Macrophyllae-Fasciculatae, using nuclear ITS and chloroplast DNA sequencing Wilson, M. Belle, C. Dang, A. Hannan, P. Kenyon, C. Low, H. Stayton, T. Woolley, M. Several revisions of the genus Pleurothallis have been proposed. Luer has proposed that Pleurothallis species in subgenus Scopula be segregated into the genera Colombiana and Ancipitia. Szlachetko and Margonska (2001) proposed the genus Zosterophyllanthos for Pleurothallis subsection Macrophyllae-Fasciculatae. As an alternative, Luer (2005) proposed the genus Acronia by uniting Pleurothallis subsection Macrophyllae-Fasciculatae with subsections Acroniae and Amphygiae. The molecular phylogenetic studies by Pridgeon and Chase (2001), however, suggested that these taxonomic revisions might not be justified. We report here a more detailed phylogenetic analysis of the genus Pleurothallis, with emphasis on subsection Macrophyllae-Fasciculatae, with data primarily from nuclear ITS sequencing, supplemented with preliminary data from plastid DNA (rpoB2, rpoC1, and ycf1) sequencing. Some initial, tentative conclusions can be drawn. In the strict consensus maximum-parsimony tree of ITS data, many of the clades collapse, leaving a polytomy with a single, highly supported node that tentatively could be used to delimit the genus Pleurothallis. Such a tree would argue for an expanded concept of the genus Pleurothallis, in which the groups Ancipitia, Colombiana, and Acronia/Zosterophyllanthos, if shown to be monophyletic, are relegated to subgenera. Several revisions of the genus Pleurothallis have been proposed. Luer has proposed that Pleurothallis species in subgenus Scopula be segregated into the genera Colombiana and Ancipitia. Szlachetko and Margonska (2001) proposed the genus Zosterophyllanthos for Pleurothallis subsection Macrophyllae-Fasciculatae. As an alternative, Luer (2005) proposed the genus Acronia by uniting Pleurothallis subsection Macrophyllae-Fasciculatae with subsections Acroniae and Amphygiae. The molecular phylogenetic studies by Pridgeon and Chase (2001), however, suggested that these taxonomic revisions might not be justified. We report here a more detailed phylogenetic analysis of the genus Pleurothallis, with emphasis on subsection Macrophyllae-Fasciculatae, with data primarily from nuclear ITS sequencing, supplemented with preliminary data from plastid DNA (rpoB2, rpoC1, and ycf1) sequencing. Some initial, tentative conclusions can be drawn. In the strict consensus maximum-parsimony tree of ITS data, many of the clades collapse, leaving a polytomy with a single, highly supported node that tentatively could be used to delimit the genus Pleurothallis. Such a tree would argue for an expanded concept of the genus Pleurothallis, in which the groups Ancipitia, Colombiana, and Acronia/Zosterophyllanthos, if shown to be monophyletic, are relegated to subgenera. Universidad de Costa Rica 2011-11-20 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.ucr.ac.cr/index.php/lankesteriana/article/view/18304 10.15517/lank.v11i3.18304 Lankesteriana: International Journal on Orchidology; 2011: Lankesteriana: Volumen 11, Número 3 Lankesteriana: International Journal on Orchidology; 2011: Lankesteriana: Volumen 11, Número 3 2215-2067 1409-3871 spa https://revistas.ucr.ac.cr/index.php/lankesteriana/article/view/18304/18492 |
| institution |
Universidad de Costa Rica |
| collection |
Lankesteriana: International Journal on Orchidology |
| language |
spa |
| format |
Online |
| author |
Wilson, M. Belle, C. Dang, A. Hannan, P. Kenyon, C. Low, H. Stayton, T. Woolley, M. |
| spellingShingle |
Wilson, M. Belle, C. Dang, A. Hannan, P. Kenyon, C. Low, H. Stayton, T. Woolley, M. A phylogenetic analysis of the genus Pleurothallis, with emphasis on Pleurothallis subsection Macrophyllae-Fasciculatae, using nuclear ITS and chloroplast DNA sequencing |
| author_facet |
Wilson, M. Belle, C. Dang, A. Hannan, P. Kenyon, C. Low, H. Stayton, T. Woolley, M. |
| author_sort |
Wilson, M. |
| description |
Several revisions of the genus Pleurothallis have been proposed. Luer has proposed that Pleurothallis species in subgenus Scopula be segregated into the genera Colombiana and Ancipitia. Szlachetko and Margonska (2001) proposed the genus Zosterophyllanthos for Pleurothallis subsection Macrophyllae-Fasciculatae. As an alternative, Luer (2005) proposed the genus Acronia by uniting Pleurothallis subsection Macrophyllae-Fasciculatae with subsections Acroniae and Amphygiae. The molecular phylogenetic studies by Pridgeon and Chase (2001), however, suggested that these taxonomic revisions might not be justified. We report here a more detailed phylogenetic analysis of the genus Pleurothallis, with emphasis on subsection Macrophyllae-Fasciculatae, with data primarily from nuclear ITS sequencing, supplemented with preliminary data from plastid DNA (rpoB2, rpoC1, and ycf1) sequencing. Some initial, tentative conclusions can be drawn. In the strict consensus maximum-parsimony tree of ITS data, many of the clades collapse, leaving a polytomy with a single, highly supported node that tentatively could be used to delimit the genus Pleurothallis. Such a tree would argue for an expanded concept of the genus Pleurothallis, in which the groups Ancipitia, Colombiana, and Acronia/Zosterophyllanthos, if shown to be monophyletic, are relegated to subgenera. |
| title |
A phylogenetic analysis of the genus Pleurothallis, with emphasis on Pleurothallis subsection Macrophyllae-Fasciculatae, using nuclear ITS and chloroplast DNA sequencing |
| title_short |
A phylogenetic analysis of the genus Pleurothallis, with emphasis on Pleurothallis subsection Macrophyllae-Fasciculatae, using nuclear ITS and chloroplast DNA sequencing |
| title_full |
A phylogenetic analysis of the genus Pleurothallis, with emphasis on Pleurothallis subsection Macrophyllae-Fasciculatae, using nuclear ITS and chloroplast DNA sequencing |
| title_fullStr |
A phylogenetic analysis of the genus Pleurothallis, with emphasis on Pleurothallis subsection Macrophyllae-Fasciculatae, using nuclear ITS and chloroplast DNA sequencing |
| title_full_unstemmed |
A phylogenetic analysis of the genus Pleurothallis, with emphasis on Pleurothallis subsection Macrophyllae-Fasciculatae, using nuclear ITS and chloroplast DNA sequencing |
| title_sort |
phylogenetic analysis of the genus pleurothallis, with emphasis on pleurothallis subsection macrophyllae-fasciculatae, using nuclear its and chloroplast dna sequencing |
| title_alt |
A phylogenetic analysis of the genus Pleurothallis, with emphasis on Pleurothallis subsection Macrophyllae-Fasciculatae, using nuclear ITS and chloroplast DNA sequencing |
| publisher |
Universidad de Costa Rica |
| publishDate |
2011 |
| url |
https://revistas.ucr.ac.cr/index.php/lankesteriana/article/view/18304 |
| work_keys_str_mv |
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