Molecular phylogeny and systematics of the centipede genus Ethmostigmus Pocock (Chilopoda : Scolopendromorpha) from peninsular India

2018 ◽  
Vol 32 (6) ◽  
pp. 1316 ◽  
Author(s):  
Jahnavi Joshi ◽  
Gregory D. Edgecombe
Keyword(s):  
Dna Sequence ◽  
Molecular Phylogenetics ◽  
Sequence Data ◽  
Indian Plate ◽  
Eastern Ghats ◽  
Integrative Approach ◽  
Phylogenetic Position ◽  
Ecological Data ◽  
Peninsular India ◽  
Dna Sequence Data

Integrative taxonomy assesses the congruence between different lines of evidence for delimiting species, such as morphological, molecular or ecological data. Herein molecular phylogenetics is used to test monophyly and determine the phylogenetic position of the Old World tropical centipede genus Ethmostigmus Pocock, 1898, and to define species boundaries for Ethmostigmus in peninsular India. A phylogeny of the family Scolopendridae based on DNA sequence data for three markers from 427 specimens sampling in all major lineages (144 individuals generated in this study) recovers Ethmostigmus as a monophyletic group, but relationships among the genera in its subfamily Otostigminae are poorly supported. Two species delimitation methods for DNA sequence data and phylogeny are integrated with morphology and geographic data to propose a well-supported species hypothesis for Ethmostigmus on the peninsular Indian plate. Five species of Ethmostigmus are recognised in peninsular India, of which E. coonooranus Chamberlin, 1920 and three new species, namely, E. agasthyamalaiensis, sp. nov., E. sahyadrensis, sp. nov. and E. praveeni, sp. nov., occur in the Western Ghats, a biodiversity hotspot. The lesser-known Eastern Ghats harbour one species, E. tristis (Meinert, 1886), which has been nearly unreported for 130 years. This study highlights the value of an integrative approach to systematics, especially in underexplored, high biodiversity regions and where morphological variation is limited among closely related species.

scholarly journals When DNA sequence data and morphological results fit together: Phylogenetic position of Crenubiotus within Macrobiotoidea (Eutardigrada) with description of Crenubiotus ruhesteini sp. nov

2021 ◽  
Author(s):  
Roberto Guidetti ◽  
Ralph O. Schill ◽  
Ilaria Giovannini ◽  
Edoardo Massa ◽  
Sara Elena Goldoni ◽  
...  
Keyword(s):  
Dna Sequence ◽  
Sequence Data ◽  
Phylogenetic Position ◽  
Dna Sequence Data

A Reexamination of the Phylogenetic Position of Callimico (Primates) Incorporating New Mitochondrial DNA Sequence Data

1998 ◽  
Vol 47 (1) ◽  
pp. 32-41 ◽  
Author(s):  
Jennifer Pastorini ◽  
Michael R.J. Forstner ◽  
Robert D. Martin ◽  
Don J. Melnick
Keyword(s):  
Mitochondrial Dna ◽  
Dna Sequence ◽  
Sequence Data ◽  
Phylogenetic Position ◽  
Dna Sequence Data ◽  
Mitochondrial Dna Sequence

Phylogeny, taxonomy, and zoogeography of the genus Gekko Laurenti, 1768 with the revalidation of G. reevesii Gray, 1831 (Sauria: Gekkonidae)

Zootaxa ◽  
2011 ◽  
Vol 2989 (1) ◽  
pp. 1 ◽  
Author(s):  
HERBERT RÖSLER ◽  
AARON M. BAUER ◽  
MATTHEW P. HEINICKE ◽  
ELI GREENBAUM ◽  
TODD JACKMAN ◽  
...  
Keyword(s):  
Dna Sequence ◽  
Molecular Phylogenetics ◽  
Nuclear Dna ◽  
Sequence Data ◽  
Identification Key ◽  
Dna Sequence Data ◽  
Preliminary Identification ◽  
Specific Rank ◽  
Species Groups

A review of the taxonomy, phylogeny, and zoogeography of all currently recognized Gekko species is provided based on morphology (including size, scalation, color, and pattern) and mitochondrial and nuclear DNA sequence data. We distinguish six morphological (phenotypic) species groups within the gekkonid genus Gekko: the G. gecko, G. japonicus, G. monarchus, G. petricolus, G. porosus, and G. vittatus groups, all of which receive support from molecular phylogenetics. The taxon G. reevesii, formerly evaluated as a synonym of G. gekko, is revalidated herein at specific rank. Furthermore, a preliminary identification key of all currently recognized Gekko taxa is provided.

Molecular phylogenetics of the Onobrychis genus (Fabaceae: Papilionoideae) using ITS and trnL–trnF DNA sequence data

2014 ◽  
Vol 62 (3) ◽  
pp. 235 ◽  
Author(s):  
S. Safaei Chaei Kar ◽  
F. Ghanavati ◽  
M. R. Naghavi ◽  
H. Amirabadi-zade ◽  
R. Rabiee
Keyword(s):  
Dna Sequence ◽  
Molecular Phylogenetics ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Dna Sequence Data ◽  
Group I ◽  
Molecular Phylogenetic ◽  
Nuclear Its ◽  
Cultivated Species ◽  
Relationship Of

Onobrychis, comprising more than 130 species, is a genus of the family Fabaceae. At this time, the interspecies relationship of this biologically important genus is still a subject of great discussion and debate. To help resolve this disagreement, we used molecular phylogeny to analyse internal transcribed spacer (ITS) and trnL–trnF sequences of 76 species of Onobrychis. Bayesian interference, maximum parsimony and maximum likelihood analyses of nuclear ITS and plastid trnL–trnF DNA sequence data generated trees with strong posterior probability for two groups: Onobrychis subgen. Sisyrosema (including: Heliobrychis, Hymenobrychis, Afghanicae and Anthyllium sections) along with Laxiflorae section in Group I and Onobrychis subgen. Onobrychis (except Laxiflorae section) in the other (Group II). The Laxiflorae section roots back to the ancestral node for Sisyrosema subgen. O. viciifolia (cultivated species), which is closely associated with O. cyri var. cyri, suggesting that the latter may be a wild progenitor of O. viciifolia. The present study supported the paraphyly of subgenera Onobrychis and Sisyrosema. The study proposed the paraphyletic nature of the sections Onobrychis, Dendrobrychis, Heliobrychis and Hymenobrychis. Together with our molecular phylogenetic analyses we present a review of Onobrychis morphology and discuss and compare our results with those of earlier morphological and molecular phylogenetic analyses.

scholarly journals Deep phylogeographic splits but no taxonomic structure in the disjointly distributed Draba pacheri (Brassicaceae), a subendemic of the Eastern Alps

2021 ◽  
Author(s):  
Erich Kucs ◽  
Peter Schönswetter ◽  
Gerald M. Schneeweiss
Keyword(s):  
Dna Sequence ◽  
Sequence Data ◽  
Single Species ◽  
Eastern Alps ◽  
Phylogenetic Position ◽  
Taxonomic Structure ◽  
European Alps ◽  
Aflp Data ◽  
Dna Sequence Data ◽  
Mountain Habitats

AbstractDraba (Brassicaeae), a model group for diversification and evolution in Arctic and mountain habitats, is taxonomically challenging and many of its species are insufficiently investigated. One such species is D. pacheri, an endemic of the eastern European Alps and the western Carpathians (here presumably extinct). Several hypotheses exist with respect to the phylogenetic position and the taxonomy of this species, but none of these has ever been tested using molecular data. In this article we examine (i) DNA sequence data to assess the phylogenetic position of D. pacheri within the genus and (ii) AFLP fingerprint data as well as morphometric data to address whether this species can be divided taxonomically into species or subspecies. DNA sequence data firmly place D. pacheri within the Core Draba Group III, whose internal relationships are, however, insufficiently resolved to precisely identify the closest relative of D. pacheri. AFLP data identify several genetically divergent lineages corresponding to geographically distinct regions. Although these lineages are congruent with hypotheses distinguishing either two species (D. pacheri s. str., D. norica) or one species with several subspecies, the lack of clear morphological separation, both with respect to the entire set of traits and single presumably diagnostic characters such as trichome morphology, renders recognition of a single species D. pacheri, as suggested previously, the best taxonomic solution. The deep and geographically strongly structured splits of D. pacheri likely are the result of isolation in several Pleistocene refugia and warrant that conservation efforts should involve populations from each of the main geographic subgroups.

scholarly journals Toward a Natural Classification of Botryosphaeriaceae: A Study of the Type Specimens of Botryosphaeria sensu lato

2021 ◽  
Vol 12 ◽  
Author(s):  
Ying Zhang ◽  
Yupei Zhou ◽  
Wei Sun ◽  
Lili Zhao ◽  
D. Pavlic-Zupanc ◽  
...  
Keyword(s):  
Dna Sequence ◽  
Dna Sequences ◽  
Sequence Data ◽  
Morphological Characteristics ◽  
Taxonomic Status ◽  
Morphological Characters ◽  
Phylogenetic Position ◽  
Type Specimens ◽  
Natural Classification ◽  
Dna Sequence Data

The genus Botryosphaeria includes more than 200 epithets, but only the type species, Botryosphaeria dothidea and a dozen or more other species have been identified based on DNA sequence data. The taxonomic status of the other species remains unconfirmed because they lack either morphological information or DNA sequence data. In this study, types or authentic specimens of 16 “Botryosphaeria” species are reassessed to clarify their identity and phylogenetic position. nuDNA sequences of four regions, ITS, LSU, tef1-α and tub2, are analyzed and considered in combination with morphological characteristics. Based on the multigene phylogeny and morphological characters, Botryosphaeria cruenta and Botryosphaeria hamamelidis are transferred to Neofusicoccum. The generic status of Botryosphaeria aterrima and Botryosphaeria mirabile is confirmed in Botryosphaeria. Botryosphaeria berengeriana var. weigeliae and B. berengeriana var. acerina are treated synonyms of B. dothidea. Botryosphaeria mucosa is transferred to Neodeightonia as Neodeightonia mucosa, and Botryosphaeria ferruginea to Nothophoma as Nothophoma ferruginea. Botryosphaeria foliicola is reduced to synonymy with Phyllachorella micheliae. Botryosphaeria abuensis, Botryosphaeria aesculi, Botryosphaeria dasylirii, and Botryosphaeria wisteriae are tentatively kept in Botryosphaeria sensu stricto until further phylogenetic analysis is carried out on verified specimens. The ordinal status of Botryosphaeria apocyni, Botryosphaeria gaubae, and Botryosphaeria smilacinina cannot be determined, and tentatively accommodate these species in Dothideomycetes incertae sedis. The study demonstrates the significance of a polyphasic approach in characterizing type specimens, including the importance of using of DNA sequence data.

A Campanulaceous Fate: the Albanian Stenoendemic Asyneuma comosiforme in fact Belongs to Isophyllous Campanula

2009 ◽  
Vol 34 (3) ◽  
pp. 595-601 ◽  
Author(s):  
Božo Frajman ◽  
Gerald M. Schneeweiss
Keyword(s):  
Dna Sequence ◽  
Sequence Data ◽  
Balkan Peninsula ◽  
Small Population ◽  
Phylogenetic Position ◽  
Biodiversity Hotspots ◽  
Dna Sequence Data ◽  
Main Clade ◽  
Restricted Distribution ◽  
Nuclear Its

The Balkan Peninsula is one of the few biodiversity hotspots in Europe, characterized by numerous endemic taxa. Due to their often-restricted distribution and the scarcity of modern phylogenetic and phylogeographic studies from this region, the phylogenetic position and taxonomy of these species are often poorly understood. One example is Asyneuma comosiforme, a stenoendemic species known only from the Shija Gorge in northeastern Albania. Since its description in 1921, the position of this poorly known species within Asyneuma has been questioned. Here, we use nuclear ITS and plastid trnL–trnF DNA sequence data to address the question of the phylogenetic position of this enigmatic species. The inferred phylogenies clearly support A. comosiforme as sister to the main clade of isophyllous Campanula species, which is supported by morphological and ecological similarities. Thus, a new nomenclatural combination, Campanula comosiformis, is proposed. Given the restricted distribution, this species should be considered at least vulnerable, but the small population size might warrant its classification as endangered.

Molecular phylogenetics of the bee-eaters (Aves: Meropidae) based on nuclear and mitochondrial DNA sequence data

2007 ◽  
Vol 45 (1) ◽  
pp. 23-32 ◽  
Author(s):  
Ben D. Marks ◽  
Jason D. Weckstein ◽  
Robert G. Moyle
Keyword(s):  
Mitochondrial Dna ◽  
Dna Sequence ◽  
Molecular Phylogenetics ◽  
Sequence Data ◽  
Dna Sequence Data ◽  
Mitochondrial Dna Sequence

scholarly journals Hymenochaetaceae (Basidiomycota, Hymenochaetales) from the Guineo-Congolian phytochorion: Phylloporia rinoreae sp. nov., an additional undescribed species from the Forest Global Earth Observatory Plot in Gabon

2019 ◽  
Vol 152 (3) ◽  
pp. 531-538
Author(s):  
Matthieu Jerusalem ◽  
Prudence Yombiyeni ◽  
Gabriel Castillo ◽  
Cony Decock
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Dna Sequence ◽  
Rain Forest ◽  
Sequence Data ◽  
Central Africa ◽  
Undescribed Species ◽  
Ecological Data ◽  
Dna Sequence Data ◽  
A New Species

Background and aims – The aim of this study is the continuation of an ongoing survey of Hymenochaetaceae (Basidiomycota, Hymenochaetales) from the lower Guinean sub-region in Central Africa. In this frame, a new species of Phylloporia is described from Gabon, based on morphological, ecological and phylogenetic data. Methods – The species is described using morphological methods, and ecological data. DNA-based phylogenetic analysis are also used to search for affinities.Key results – A new species of Phylloporia, P. rinoreae, is described based on specimens collected on living twigs of a shrubby Rinorea species (Violaceae), occurring in the Guineo-Congolian rain forest. Phylogenetic inferences using DNA sequence data from partial nuc 28S (region including the D1/D2/D3 domains) resolved this species as a distinct clade within the Phylloporia lineage. An identification key to the species reported from the Guineo-Congolian phytochorion is provided.Conclusion – Phylloporia rinoreae is the seventh species of the genus described from and so far only known from Gabon in the Lower Guinean phytogeographical sub-region.

Sign in / Sign up

Export Citation Format

Share Document