scholarly journals Systematic Placement of the Enigmatic Southeast Asian Genus Paralamium and an Updated Phylogeny of Tribe Pogostemoneae (Lamiaceae Subfamily Lamioideae)

2021 ◽  
Vol 12 ◽  
Author(s):  
Fei Zhao ◽  
Yi-Wen Wu ◽  
Bryan T. Drew ◽  
Gang Yao ◽  
Ya-Ping Chen ◽  
...  
Keyword(s):  
Chloroplast Dna ◽  
Phylogenetic Relationships ◽  
Internal Transcribed Spacer ◽  
Systematic Position ◽  
Monotypic Genus ◽  
Internal Transcribed Spacer Region ◽  
Generic Level ◽  
Phylogenetic Placement ◽  
Dichotomous Key ◽  
Generic Relationships

Paralamium (Lamiaceae) is a monotypic genus within the subfamily Lamioideae and has a sporadic distribution in subtropical mountains of southeast Asia. Although recent studies have greatly improved our understanding of generic relationships within Lamioideae, the second most species-rich subfamily of Lamiaceae, the systematic position of Paralamium within the subfamily remains unclear. In this study, we investigate the phylogenetic placement of the genus using three datasets: (1) a 69,276 bp plastome alignment of Lamiaceae; (2) a five chloroplast DNA region dataset of tribe Pogostemoneae, and (3) a nuclear ribosomal internal transcribed spacer region dataset of Pogostemoneae. These analyses demonstrate that Paralamium is a member of Pogostemoneae and sister to the monotypic genus Craniotome. In addition, generic-level phylogenetic relationships within Pogostemoneae are also discussed, and a dichotomous key for genera within Pogostemoneae is provided.

Phylogenetic Relationships of Wildlife Order Carnivora in Thailand Inferred from the Internal Transcribed Spacer Region

2008 ◽  
Vol 8 (2) ◽  
pp. 278-287 ◽  
Author(s):  
Arunrat Chaveerach ◽  
Nattapong Srisamoot ◽  
Suporn Nuchadomro ◽  
Nison Sattayasai ◽  
Prapansak Chaveerach ◽  
...  
Keyword(s):  
Phylogenetic Relationships ◽  
Internal Transcribed Spacer ◽  
Internal Transcribed Spacer Region

scholarly journals A new concept for Dictyostelium sphaerocephalum based on morphology and phylogenetic analysis of nuclear ribosomal internal transcribed spacer region sequences

2007 ◽  
Vol 85 (1) ◽  
pp. 104-110 ◽  
Author(s):  
Maria Romeralo ◽  
Omar Fiz-Palacios ◽  
Carlos Lado ◽  
James C. Cavender
Keyword(s):  
Phylogenetic Analysis ◽  
Phylogenetic Relationships ◽  
Internal Transcribed Spacer ◽  
Phylogenetic Analyses ◽  
Morphological Plasticity ◽  
Branching Pattern ◽  
Classical Concept ◽  
Internal Transcribed Spacer Region

Three dictyostelid isolates were found in Spain and Argentina that are morphologically different from known species. These isolates have some features similar to Dictyostelium sphaerocephalum (Oudem.) Sacc., Marchal & É.J. Marchal, but differ in size and sorocarp branching pattern. We sequenced the nuclear ribosomal internal transcribed spacer region to explore phylogenetic relationships among this group of species, including the three new isolates and their closest relatives. In all phylogenetic analyses performed, sequences of all three isolates group together with sequences from “typical” D. sphaerocephalum samples. This result supports previous observations of the morphological plasticity in dictyostelids, especially D. sphaerocephalum, leading us to broaden the classical concept of this species.

Phylogenetic relationships of the genus Phanerochaete inferred from the internal transcribed spacer region

2003 ◽  
Vol 107 (9) ◽  
pp. 1032-1040 ◽  
Author(s):  
Theodorus H. De Koker ◽  
Karen K. Nakasone ◽  
Jacques Haarhof ◽  
Harold H. Burdsall ◽  
Bernard J.H. Janse
Keyword(s):  
Phylogenetic Relationships ◽  
Internal Transcribed Spacer ◽  
Internal Transcribed Spacer Region

Photobiont associations in co-occurring umbilicate lichens with contrasting modes of reproduction in coastal Norway

2016 ◽  
Vol 48 (5) ◽  
pp. 545-557 ◽  
Author(s):  
Geir HESTMARK ◽  
François LUTZONI ◽  
Jolanta MIADLIKOWSKA
Keyword(s):  
Dna Sequences ◽  
Internal Transcribed Spacer ◽  
Sampling Site ◽  
Internal Transcribed Spacer Region ◽  
Phylogenetic Placement ◽  
Lichen Symbiosis ◽  
Lasallia Pustulata ◽  
Green Algal ◽  
Coastal Cliffs ◽  
Algal Genus

AbstractThe identity and phylogenetic placement of photobionts associated with two lichen-forming fungi, Umbilicaria spodochroa and Lasallia pustulata were examined. These lichens commonly grow together in high abundance on coastal cliffs in Norway, Sweden and Finland. The mycobiont of U. spodochroa reproduces sexually through ascospores, and must find a suitable algal partner in the environment to re-establish the lichen symbiosis. Lasallia pustulata reproduces mainly vegetatively using symbiotic propagules (isidia) containing both symbiotic partners (photobiont and mycobiont). Based on DNA sequences of the internal transcribed spacer region (ITS) we detected seven haplotypes of the green-algal genus Trebouxia in 19 pairs of adjacent thalli of U. spodochroa and L. pustulata from five coastal localities in Norway. As expected, U. spodochroa associated with a higher diversity of photobionts (seven haplotypes) than the mostly asexually reproducing L. pustulata (four haplotypes). The latter was associated with the same haplotype in 15 of the 19 thalli sampled. Nine of the lichen pairs examined share the same algal haplotype, supporting the hypothesis that the mycobiont of U. spodochroa might associate with the photobiont ‘pirated’ from the abundant isidia produced by L. pustulata that are often scattered on the cliff surfaces. Up to six haplotypes of Trebouxia were found within a single sampling site, indicating a low level of specificity of both mycobionts for their algal partner. Most photobiont strains associated with species of Umbilicaria and Lasallia, including samples from this study, represent phylogenetically closely related taxa of Trebouxia grouped within a small number of main clades (Trebouxia sp., T. simplex/T. jamesii, and T. incrustata+T. gigantea). Three of the photobiont haplotypes were found only in U. spodochroa thalli.

Reconstruction of phylogenetic relationships in dermatomycete genusTrichophytonMalmsten 1848 based on ribosomal internal transcribed spacer region, partial 28S rRNA and beta-tubulin genes sequences

Mycoses ◽  
2016 ◽  
Vol 59 (9) ◽  
pp. 566-575 ◽  
Author(s):  
Ivan M. Pchelin ◽  
Vasily V. Zlatogursky ◽  
Mariya V. Rudneva ◽  
Galina A. Chilina ◽  
Ali Rezaei-Matehkolaei ◽  
...  
Keyword(s):  
Phylogenetic Relationships ◽  
Internal Transcribed Spacer ◽  
28S Rrna ◽  
Internal Transcribed Spacer Region ◽  
Beta Tubulin ◽  
Tubulin Genes

Morphology and phylogenic position of Wynnella subalpina sp. nov. (Helvellaceae) from western China

Phytotaxa ◽  
2016 ◽  
Vol 270 (1) ◽  
pp. 41 ◽  
Author(s):  
QI ZHAO ◽  
SIRAPRAPA BROOKS ◽  
YONG-CHAN ZHAO ◽  
ZHU L. YANG ◽  
KEVIN D. HYDE
Keyword(s):  
New Species ◽  
Ribosomal Dna ◽  
Internal Transcribed Spacer ◽  
Western China ◽  
Southwestern China ◽  
Monotypic Genus ◽  
Internal Transcribed Spacer Region ◽  
Phylogenetic Studies ◽  
Rabbit Ear ◽  
A New Species

The genus Wynnella has long been regarded as a monotypic genus, consisting only W. auricula (Schaeff) Boud. Morphological and phylogenetic studies were carried out on new collections of Wynnella from Tibet and Sichuan, in southwestern China. Morphology and phylogenies inferred from the internal transcribed spacer region of ribosomal DNA (ITS) and the D1–D3 region of 28S nrDNA (28S) sequences data clearly suggest these collections representing a new species in the genus. Wynnella subalpina is thus introduced and illustrated. The species is characterized by its rabbit ear-shaped apothecia, with a tea brown to blackish brown hymenium, a red, reddish brown to pale yellowish brown receptacle surface, and a costate stipe. Detailed macro- and micro-scopic descriptions, illustrations of microscopic characters and photographic plates are provided herein.

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