Phylogenetic relationships in Polygalaceae based on plastid DNA sequences from the trnL‐F region

Taxon ◽  
2001 ◽  
Vol 50 (3) ◽  
pp. 763-779 ◽  
Author(s):  
Claes Persson
Keyword(s):  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Plastid Dna ◽  
F Region

Phylogenetic relationships based on nuclear and plastid DNA sequences reveal recent diversification and discordant patterns of morphological evolution of the Chilean genera of Gilliesieae (Amaryllidaceae: Allioideae)

2020 ◽  
Vol 194 (1) ◽  
pp. 84-99
Author(s):  
Inelia Escobar ◽  
Eduardo Ruiz-Ponce ◽  
Paula J Rudall ◽  
Michael F Fay ◽  
Oscar Toro-Núñez ◽  
...  
Keyword(s):  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Incomplete Lineage Sorting ◽  
Morphological Evolution ◽  
Strong Support ◽  
Plastid Dna ◽  
Lineage Sorting ◽  
Generic Level ◽  
Molecular Analyses ◽  
Floral Diversity

Abstract Gilliesieae are a South American tribe of Amaryllidaceae characterized by high floral diversity. Given different taxonomic interpretations and proposals for generic and specific relationships, a representative phylogenetic analysis is required to clarify the systematics of this group. The present study provides a framework for understanding phylogenetic relationships and contributing to the development of an appropriate taxonomic treatment of Gilliesieae. Molecular analyses, based on nuclear (ITS) and plastid DNA sequences (trnL-F and rbcL), resolve with strong support the monophyly of the tribe and the differentiation of two major clades. Clade I comprises the genera Gilliesia, Gethyum and Solaria and Clade II includes Miersia and Speea. These well-supported clades are mostly congruent with vegetative and karyotype characters rather than, e.g., floral symmetry. At the generic level, all molecular analyses reveal the paraphyly of Gilliesia and Miersia. Gethyum was found to be paraphyletic, resulting in the confirmation of Ancrumia as a distinct genus. Several instances of incongruent phylogenetic signals were found among data sets. The calibrated tree suggests a recent diversification of the tribe (Pliocene–Pleistocene), a contemporary process of speciation in which instances of hybridization and incomplete lineage sorting could explain patterns of paraphyly and incongruence of floral morphology.

Species boundaries and phylogenetic relationships within the green algal genus Codium (Bryopsidales) based on plastid DNA sequences

2007 ◽  
Vol 44 (1) ◽  
pp. 240-254 ◽  
Author(s):  
Heroen Verbruggen ◽  
Frederik Leliaert ◽  
Christine A. Maggs ◽  
Satoshi Shimada ◽  
Tom Schils ◽  
...  
Keyword(s):  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Plastid Dna ◽  
Species Boundaries ◽  
Green Algal ◽  
Algal Genus

scholarly journals Molecular phylogeny of Saudi Arabian Tetraena Maxim. and Zygophyllum L. (Zygophyllaceae) based on plastid DNA sequences

2017 ◽  
Vol 24 (2) ◽  
pp. 155-164 ◽  
Author(s):  
Dhafer Ahmed Alzahrani ◽  
Enas Jameel Albokhari
Keyword(s):  
Phylogenetic Analysis ◽  
Molecular Phylogeny ◽  
Chloroplast Dna ◽  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Maximum Parsimony ◽  
Saudi Arabian ◽  
Plastid Dna ◽  
Plant Taxon ◽  
Bayesian Criteria

In order to provide a basis for better understanding of phylogenetic relationships of Saudi Arabian Tetraena Maxim. and Zygophyllum L., 44 specimens representing seven taxa, were reconstructed based on chloroplast DNA data of rbcL and trnL-F. The combined chloroplast (rbcL and trnL-F) contributed more phylogenetically informative characters than in individual regions. Phylogenetic analysis of the combined chloroplast (rbcL and trnL-F) and in individual regions based on both of Maximum Parsimony and Bayesian criteria showed that the Saudi Arabian species of Tetraena and Zygophyllum were monophyletic. Zygophyllum fabag L. was nested in one clade with Z. xanthoxylum (Bunge) Engl. (Asian species), and all taxa of Tetraena were distributed in other clades.Bangladesh J. Plant Taxon. 24(2): 155–164.

scholarly journals Genetic diversity and phylogeography of the rare riparian moss Dichelyma capillaceum (With.) Myr. inferred from trnL-F plastid DNA sequences

2009 ◽  
Vol 61 (1) ◽  
pp. 85-91 ◽  
Author(s):  
M. Sabovljevic ◽  
J.P. Frahm
Keyword(s):  
Genetic Diversity ◽  
Dna Sequences ◽  
North American ◽  
Genetic Relationships ◽  
Plastid Dna ◽  
Molecular Data ◽  
Genetic Distances ◽  
German Population ◽  
F Region

The genetic relationships of Dichelyma capillaceum (With.) Myr. are studied from chloroplast sequences of the trnL-F region. On the basis of the molecular data obtained, the German population can be considered to be derived from Scandinavian(Swedish) rather than North American populations. To judge from the genetic distances between the Swedish and German populations, the separation must have occurred along time ago.

Phylogenetic relationships in Mormodes (Orchidaceae, Cymbidieae, Catasetinae) inferred from nuclear and plastid DNA sequences and morphology

Phytotaxa ◽  
2016 ◽  
Vol 263 (1) ◽  
pp. 18 ◽  
Author(s):  
GERARDO A. SALAZAR ◽  
LIDIA I. CABRERA ◽  
GÜNTER GERLACH ◽  
ERIC HÁGSATER ◽  
MARK W. CHASE
Keyword(s):  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Taxonomic Revision ◽  
Plastid Dna ◽  
Morphological Characters ◽  
Bootstrap Support ◽  
Consensus Trees ◽  
Geographic Structure ◽  
Outgroup Species ◽  
Strong Bootstrap Support

Interspecific phylogenetic relationships in the Neotropical orchid genus Mormodes were assessed by means of maximum parsimony (MP) and Bayesian inference (BI) analyses of non-coding nuclear ribosomal (nrITS) and plastid (trnL–trnF) DNA sequences and 24 morphological characters for 36 species of Mormodes and seven additional outgroup species of Catasetinae. The bootstrap (>50%) consensus trees of the MP analyses of each separate dataset differed in the degree of resolution and overall clade support, but there were no contradicting groups with strong bootstrap support. MP and BI combined analyses recovered similar relationships, with the notable exception of the BI analysis not resolving section Mormodes as monophyletic. However, sections Coryodes and Mormodes were strongly and weakly supported as monophyletic by the MP analysis, respectively, and each has diagnostic morphological characters and different geographical distribution. The geographic structure reflected by the recovered phylogenetic patterns suggests that it is possible to undertake taxonomic revision of regional clades, which eventually will lead to a thorough revision of the genus.

Phylogenetic relationships within Parianinae (Poaceae: Bambusoideae: Olyreae) with emphasis on Eremitis: Evidence from nuclear and plastid DNA sequences, macromorphology, and pollen ectexine patterns

2019 ◽  
Vol 139 ◽  
pp. 106541 ◽  
Author(s):  
Fabrício M. Ferreira ◽  
Reyjane P. Oliveira ◽  
Cassiano A. Dorneles Welker ◽  
Marcos da Costa Dórea ◽  
Ana Luísa de Carvalho Lima ◽  
...  
Keyword(s):  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Plastid Dna

scholarly journals Molecular phylogenetic relationships of Melanthiaceae (Liliales) based on plastid DNA sequences

2016 ◽  
Vol 181 (4) ◽  
pp. 567-584 ◽  
Author(s):  
Sang-Chul Kim ◽  
Jung Sung Kim ◽  
Mark W. Chase ◽  
Michael F. Fay ◽  
Joo-Hwan Kim
Keyword(s):  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Plastid Dna ◽  
Molecular Phylogenetic

scholarly journals Phylogenetic relationships of Malvatheca (Bombacoideae and Malvoideae; Malvaceae sensu lato) as inferred from plastid DNA sequences

2004 ◽  
Vol 91 (11) ◽  
pp. 1863-1871 ◽  
Author(s):  
David A. Baum ◽  
Stacey DeWitt Smith ◽  
Alan Yen ◽  
William S. Alverson ◽  
Reto Nyffeler ◽  
...  
Keyword(s):  
Dna Sequences ◽  
Phylogenetic Relationships ◽  
Plastid Dna
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