Assessment of the order Rhodymeniales (Rhodophyta) from British Columbia using an integrative taxonomic approach reveals overlooked and cryptic species diversity

Botany ◽  
2018 ◽  
Vol 96 (6) ◽  
pp. 359-383 ◽  
Author(s):  
Gina V. Filloramo ◽  
Gary W. Saunders
Keyword(s):  
British Columbia ◽  
Species Diversity ◽  
Dna Sequence ◽  
Sequence Data ◽  
The Novel ◽  
Additional Species ◽  
Dna Sequence Data ◽  
Species Groups ◽  
Taxonomic Approach ◽  
Genetic Species

Molecular-assisted alpha taxonomy using COI-5P and rbcL-3P was employed to reassess species diversity for the Rhodymeniales (Rhodophyta) in British Columbia. A total of 563 collections from British Columbia were resolved as 16 genetic species groups, whereas 13 were previously reported. Collections attributed to Botryocladia pseudodichotoma from British Columbia were resolved as distinct from collections of that species from California (type locality) and were assigned to Botryocladia hawkesii sp. nov. DNA sequence data also resolved an additional species of Fryeella. Although two species of Gloiocladia were recognized, genetic analyses resolved three: G. fryeana, G. laciniata, and Gloiocladia vigneaultii sp. nov. Data also resolved Gloiocladia media comb. nov. from California. For the genus Rhodymenia, where two species were expected, DNA sequence data resolved four. Both R. californica and R. pacifica were confirmed in British Columbia, whereas some collections field-identified as R. californica were genetically distinct and assigned to the novel species, Rhodymenia bamfieldensis sp. nov. Some collections initially identified as R. pacifica were assigned to the resurrected species R. rhizoides. Anatomical development for the monospecific genus Minium was also reassessed owing to that taxon’s assignment to the Fryeellaceae. Our investigation clarified the number of rhodymenialean species in British Columbia and resolved taxonomic and distributional uncertainties associated with some of these taxa.

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.

Validation of three sympatric Thoracophelia species (Annelida: Opheliidae) from Dillon Beach, California using mitochondrial and nuclear DNA sequence data

Zootaxa ◽  
2013 ◽  
Vol 3608 (1) ◽  
pp. 67-74 ◽  
Author(s):  
Chris J. LAW ◽  
KELLY M. DORGAN ◽  
GREG W. ROUSE
Keyword(s):  
Dna Sequence ◽  
Nuclear Dna ◽  
Sequence Data ◽  
Hemoglobin Concentration ◽  
Sympatric Species ◽  
Sandy Beaches ◽  
Additional Species ◽  
Dna Sequence Data ◽  
C Subunit ◽  
Coi Sequences

Thoracophelia (Annelida, Opheliidae) are burrowing deposit feeders generally found in the mid- to upper intertidal areas of sandy beaches. Thoracophelia mucronata (Treadwell, 1914) is found along the west coast of North America, including at Dillon Beach, CA. Two additional species, Thoracophelia dillonensis (Hartman, 1938) and T. williamsi (Hartman, 1938) were also described from this beach. These three sympatric species have been primarily distinguished by branchial morphology, and efforts to determine the validity of the species have been based on morphological, reproductive and ecological studies. Here we demonstrate using mitochondrial and nuclear DNA sequence data that these three species are valid. Mitochondrial Cytochrome c subunit 1 (COI) sequences show uncorrected interspecific distances of ~9–13%. We found no inter—specific differences in body color or in hemoglobin concentration, but found that reproductive males were pinkish-red in color and had lower hemoglobin concentrations than purplish—red reproductive females.

Phylogeny and mtDNA phylogeography of two widespread European pond skater species (Hemiptera-Heteroptera: Gerridae: Gerris Fabricius)

2006 ◽  
Vol 37 (3) ◽  
pp. 335-350 ◽  
Author(s):  
Jakob Damgaard
Keyword(s):  
Genetic Diversity ◽  
Mitochondrial Dna ◽  
Dna Sequence ◽  
Sequence Data ◽  
Close Relative ◽  
Individual Species ◽  
Widespread Species ◽  
Dna Sequence Data ◽  
Central Asian ◽  
Species Groups

AbstractThis study addresses the phylogenetic relationships within and between two widespread Palaearctic pond skater species, Gerris costae and G. thoracicus, by including new DNA sequence data from the Central Asian G. sahlbergi, traditionally assigned as a close relative of G. costae. The results support the assignment of G. costae and G. thoracicus to two individual species groups that are not closely related, but also that G. sahlbergi is nested within G. costae (including subspecies costae, fieberi and poissoni) thus suggesting a new subspecific rank as G. c. sahlbergi. A broad geographical sampling of mitochondrial DNA from populations of G. thoracicus and G. costae (incl. G. c. sahlbergi) shows that the two species are strikingly similar in terms of genetic diversity and lack of geographical substructure, thus adding further evidence for the G. costae group comprising a single, widespread species.

scholarly journals Molecular and anatomical analyses reveal that Peronia verruculata (Gastropoda: Onchidiidae) is a cryptic species complex

2018 ◽  
Vol 87 (3) ◽  
pp. 149-165 ◽  
Author(s):  
Jia Jin Marc Chang ◽  
Ywee Chieh Tay ◽  
Hui Ping Ang ◽  
Karenne Phyu Phyu Tun ◽  
Loke Ming Chou ◽  
...  
Keyword(s):  
Cryptic Species ◽  
Dna Sequence ◽  
Sequence Data ◽  
Accessory Gland ◽  
Sequence Information ◽  
Dna Sequence Data ◽  
Distinct Sequence ◽  
Cryptic Species Complex ◽  
Taxonomic Approach ◽  
Intertidal Environments

Recent years have seen an increase in the number of studies that use DNA sequence information in addition to morphological methods, as the latter alone can be inadequate for morphologically similar, cryptic species. Marine onchidiid slugs (Mollusca: Gastropoda: Onchidiidae), which commonly inhabit intertidal environments and have a near-global distribution, comprise 11 genera and 86 described species. Singapore has 19 recorded species of onchidiids with Peronia verruculata (Cuvier, 1830) being the most abundant. Here we present mitochondrial DNA sequence data from 63 P. verruculata-like specimens to show that they constitute two closely-related clades with distinct sequence signatures and a clear barcode gap. Intraclade distances are 0–1.8% while interclade distances range from 4.7 to 6.0%. Scanning electron microscopy of internal copulation organs reveals that the two clades have distinct penial and accessory gland spine structures, which also differ in size. Using an integrative taxonomic approach, we propose that what was initially thought to be P. verruculata in Singapore, actually are two different species of Peronia.

scholarly journals Revision of Eudorylas Aczél, 1940 (Diptera, Pipunculidae) in the Middle East, with the description of four new species

2020 ◽  
Vol 8 ◽  
Author(s):  
Behnam Motamedinia ◽  
Jeffrey Skevington ◽  
Scott Kelso
Keyword(s):  
New Species ◽  
Middle East ◽  
Sequence Data ◽  
Middle Eastern ◽  
Additional Species ◽  
Mitochondrial Coi ◽  
Dna Sequence Data ◽  
Coi Barcoding ◽  
Males And Females ◽  
Taxonomic Approach

The Middle Eastern species of Eudorylas Aczél, 1940 are revised through an integrative taxonomic approach by combining morphological and sequence data from the mitochondrial COI barcoding gene. Four new species of the genus Eudorylas are described, males and females of three species are associated, DNA sequence data of 11 Middle Eastern Eudorylas species are provided and 15 additional species are discussed. To facilitate their recognition, we provide diagnoses, descriptions, an identification key and distributional maps for all species. The following new species are described from the Middle East: E. avis Motamedinia & Skevington sp. n., E. bihamatus Motamedinia & Skevington sp. n., E. corniculans Motamedinia & Skevington sp. n., E. nasicus Motamedinia & Skevington sp. n.

scholarly journals Guayaquilia gen. nov., typified by Idriella cubensis

Mycotaxon ◽  
2020 ◽  
Vol 135 (3) ◽  
pp. 501-512
Author(s):  
Freddy Magdama ◽  
Daynet Sosa ◽  
Fernando Espinoza ◽  
Lizette Serrano ◽  
Simón Pérez-Martinez ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Dna Sequence ◽  
New Genus ◽  
Sequence Data ◽  
The Novel ◽  
Novel Genus ◽  
Dna Sequence Data ◽  
Incertae Sedis ◽  
Monophyletic Lineage

A new genus Guayaquilia is established to accommodate Idriella cubensis based on morphology and phylogenetic analysis. DNA sequence data place these specimens as incertae sedis separate from Microdochiaceae (Xylariales), forming a monophyletic lineage separated from Neoidriella desertorum and phylogenetically distant from Idriella. The novel genus is characterized by macronematous, tree-like, fasciculate, profuse dichotomously, alternately, or irregularly branched, brown conidiophores with polyblastic, denticulate, sympodial extended, intercalary and terminal conidiogenous cells that produce solitary, sublunate, subnavicular, lunate, inequilateral, (0–)1-septate, hyaline conidia.

scholarly journals DNA sonification for public engagement in bioinformatics

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Heleen Plaisier ◽  
Thomas R. Meagher ◽  
Daniel Barker
Keyword(s):  
Dna Sequence ◽  
Public Engagement ◽  
Sequence Data ◽  
Sensory Perception ◽  
Data Representation ◽  
Sequence Information ◽  
Dna Sequence Data ◽  
Public Events ◽  
Dna Base ◽  
Alternative Means

Abstract Objective Visualisation methods, primarily color-coded representation of sequence data, have been a predominant means of representation of DNA data. Algorithmic conversion of DNA sequence data to sound—sonification—represents an alternative means of representation that uses a different range of human sensory perception. We propose that sonification has value for public engagement with DNA sequence information because it has potential to be entertaining as well as informative. We conduct preliminary work to explore the potential of DNA sequence sonification in public engagement with bioinformatics. We apply a simple sonification technique for DNA, in which each DNA base is represented by a specific note. Additionally, a beat may be added to indicate codon boundaries or for musical effect. We report a brief analysis from public engagement events we conducted that featured this method of sonification. Results We report on use of DNA sequence sonification at two public events. Sonification has potential in public engagement with bioinformatics, both as a means of data representation and as a means to attract audience to a drop-in stand. We also discuss further directions for research on integration of sonification into bioinformatics public engagement and education.

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