Header

UZH-Logo

Maintenance Infos

A phylogenetic analysis of Apostasioideae (Orchidaceae) based on ITS, trnL-F and matK sequences


Kocyan, A; Qiu, Y-L; Endress, P K; Conti, E (2004). A phylogenetic analysis of Apostasioideae (Orchidaceae) based on ITS, trnL-F and matK sequences. Plant Systematics and Evolution, 247(3-4):203-213.

Abstract

The orchid subfamily Apostasioideae consists of two genera, Apostasia and Neuwiedia. To study the position of Apostasioideae within Orchidaceae and their intra- and intergeneric relationships, a molecular phylogenetic analysis has been conducted on the nuclear ITS region and the two plastid DNA regions trnL-F intron and matK. The two genera traditionally ascribed to Apostasioideae are each monophyletic. In Apostasia, A. nuda, with two stamens and no staminode, is sister to a clade comprising three species characterised by two stamens and one staminode. Within Neuwiedia, maximum parsimony analyses place N. zollingeri as sister to the clade formed by N. borneensis and N. veratrifolia. A family-wide phylogenetic analysis of matK sequences representing all proposed subfamilies of Orchidaceae produced five moderately to well-supported clades. One of these clades, Apostasioideae, is sister to the clade formed by Vanilloideae, Cypripedioideae, Orchidoideae and Epidendroideae. High transition-transversion ratio and the absence of stop codons in the individual sequences suggest that matK is at the transition from a possibly functional gene to a pseudogene in Apostasioideae, contrary to what is found in some other groups of Orchidaceae

Abstract

The orchid subfamily Apostasioideae consists of two genera, Apostasia and Neuwiedia. To study the position of Apostasioideae within Orchidaceae and their intra- and intergeneric relationships, a molecular phylogenetic analysis has been conducted on the nuclear ITS region and the two plastid DNA regions trnL-F intron and matK. The two genera traditionally ascribed to Apostasioideae are each monophyletic. In Apostasia, A. nuda, with two stamens and no staminode, is sister to a clade comprising three species characterised by two stamens and one staminode. Within Neuwiedia, maximum parsimony analyses place N. zollingeri as sister to the clade formed by N. borneensis and N. veratrifolia. A family-wide phylogenetic analysis of matK sequences representing all proposed subfamilies of Orchidaceae produced five moderately to well-supported clades. One of these clades, Apostasioideae, is sister to the clade formed by Vanilloideae, Cypripedioideae, Orchidoideae and Epidendroideae. High transition-transversion ratio and the absence of stop codons in the individual sequences suggest that matK is at the transition from a possibly functional gene to a pseudogene in Apostasioideae, contrary to what is found in some other groups of Orchidaceae

Statistics

Citations

Dimensions.ai Metrics
49 citations in Web of Science®
50 citations in Scopus®
Google Scholar™

Altmetrics

Downloads

24 downloads since deposited on 19 Oct 2018
24 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:National licences > 142-005
Dewey Decimal Classification:580 Plants (Botany)
Language:English
Date:1 August 2004
Deposited On:19 Oct 2018 11:46
Last Modified:24 Sep 2019 23:46
Publisher:Springer
ISSN:0378-2697
OA Status:Green
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1007/s00606-004-0133-3
Related URLs:https://www.swissbib.ch/Search/Results?lookfor=nationallicencespringer101007s0060600401333 (Library Catalogue)

Download

Download PDF  'A phylogenetic analysis of Apostasioideae (Orchidaceae) based on ITS, trnL-F and matK sequences'.
Preview
Content: Published Version
Language: English
Filetype: PDF (Nationallizenz 142-005)
Size: 277kB
View at publisher