Results 51 to 60 of about 3,119 (211)

DNA Barcoding of Penaeidae (Decapoda; Crustacea): Non-Distance-Based Species Delimitation of the Most Economically Important Shrimp Family

open access: yesDiversity, 2021
The Penaeidae family includes some of the most economic and ecological important marine shrimp, comprising hundreds of species. Despite this importance and diversity, the taxonomic classification for penaeid shrimp has constantly been revised, and issues
Jorge L. Ramirez   +9 more
doaj   +1 more source

One species in eight : DNA barcodes from type specimens resolve a taxonomic quagmire [PDF]

open access: yes, 2015
Each holotype specimen provides the only objective link to a particular Linnean binomen. Sequence information from them is increasingly valuable due to the growing usage of DNA barcodes in taxonomy.
Hebert, Paul D. N.   +4 more
core   +1 more source

A general species delimitation method with applications to phylogenetic placements

open access: yesBioinform., 2013
Motivation: Sequence-based methods to delimit species are central to DNA taxonomy, microbial community surveys and DNA metabarcoding studies. Current approaches either rely on simple sequence similarity thresholds (OTU-picking) or on complex and compute ...
Jiajie Zhang   +3 more
semanticscholar   +1 more source

Delimiting Species Using Single-Locus Data and the Generalized Mixed Yule Coalescent Approach: A Revised Method and Evaluation on Simulated Data Sets

open access: yesSystematic Biology, 2013
DNA barcoding-type studies assemble single-locus data from large samples of individuals and species, and have provided new kinds of data for evolutionary surveys of diversity.
T. Fujisawa, T. Barraclough
semanticscholar   +1 more source

Toward a DNA taxonomy of Alpine Rhithrogena (Ephemeroptera: Heptageniidae) using a mixed Yule-coalescent analysis of mitochondrial and nuclear DNA.

open access: yesPLoS ONE, 2011
Aquatic larvae of many Rhithrogena mayflies (Ephemeroptera) inhabit sensitive Alpine environments. A number of species are on the IUCN Red List and many recognized species have restricted distributions and are of conservation interest.
Laurent Vuataz   +3 more
doaj   +1 more source

Allopatric speciation within a cryptic species complex of Australasian octopuses. [PDF]

open access: yesPLoS ONE, 2014
Despite extensive revisions over recent decades, the taxonomy of benthic octopuses (Family Octopodidae) remains in a considerable flux. Among groups of unresolved status is a species complex of morphologically similar shallow-water octopods from ...
Michael D Amor   +3 more
doaj   +1 more source

Diversity in insect seed parasite guilds at large geographical scale: the roles of host specificity and spatial distance [PDF]

open access: yes, 2016
[Aim]: Host specificity within plant-feeding insects constitutes a fascinating example of natural selection that promotes inter-specific niche segregation.
Aparicio, José Miguel   +6 more
core   +1 more source

Intraspecific genetic variation in complex assemblages from mitochondrial metagenomics: comparison with DNA barcodes [PDF]

open access: yes, 2016
Metagenomic shotgun sequencing, using Illumina technology, and de novo genome assembly of mixed field-collected amples of invertebrates readily produce mitochondrial genome sequences, allowing rapid identification and quantification of species diversity.
Crampton-Platt, Alex   +3 more
core   +1 more source

Towards an integrated phylogenetic classification of the Tremellomycetes

open access: yesStudies in Mycology, 2015
Families and genera assigned to Tremellomycetes have been mainly circumscribed by morphology and for the yeasts also by biochemical and physiological characteristics.
X. Liu   +10 more
semanticscholar   +1 more source

Mitochondrial cox1 sequence data reliably uncover patterns of insect diversity but suffer from high lineage-idiosyncratic error rates.

open access: yesPLoS ONE, 2010
BackgroundThe demand for scientific biodiversity data is increasing, but taxonomic expertise is often limited or not available. DNA sequencing is a potential remedy to overcome this taxonomic impediment. Mitochondrial DNA is most commonly used, e.g., for
Lars Hendrich   +3 more
doaj   +1 more source

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