Results 21 to 30 of about 2,132 (180)

Species delimitation of Margattea cockroaches from China, with seven new species (Blattodea, Ectobiidae, Pseudophyllodromiinae) [PDF]

open access: yesZooKeys, 2021
Nearly 450 Margattea specimens were collected from 27 locations in China and their morphology was examined. Then 68 Margattea COI sequences were obtained and used to carry out phylogenetic analyses as well as species delimitation analyses using General ...
Jia-Jun He   +4 more
doaj   +3 more sources

Molecular delimitation methods validate morphologically similar species of red snappers (Perciformes: Lutjanidae)

open access: yesAnais da Academia Brasileira de Ciências, 2023
In this study, we tested the taxonomic validation of red snappers species (Southern red snapper Lutjanus purpureus; Silk snapper L. vivanus; Blackfin snapper L. buccanella; and Pacific red snapper L.
DANILLO SILVA   +4 more
doaj   +1 more source

DNA barcoding elucidates the population genetic diversity of venomous cobra species (Reptilia: Elapidae) in Indo-Bangladesh region

open access: yesMitochondrial DNA. Part B. Resources, 2020
The DNA barcode data of venomous cobra species (Naja naja and Naja kaouthia) are limited in the global database, especially from India and Bangladesh. Owing to the rapid success of DNA barcoding for discriminating a variety of species around the world ...
Shantanu Kundu   +7 more
doaj   +1 more source

Cryptic speciation in populations of the genus Aphyocharax (Characiformes: Characidae) from eastern Amazon coastal river drainages and surroundings revealed by single locus species delimitation methods

open access: yesNeotropical Ichthyology, 2021
Recent studies in eastern Amazon coastal drainages and their surroundings have revealed new fish species that sometimes exhibit little morphological differentiation (cryptic species).
Pâmella S. Brito   +7 more
doaj   +1 more source

Interrogation of earthworm (Clitellata: Haplotaxida) taxonomy and the DNA sequence database

open access: yesJournal of Asia-Pacific Biodiversity, 2021
The DNA sequence database assists us with great potential in species identification because it is practical and affordable to perform. More often, the identification using molecular data helps to identify morphologically variable individuals of same ...
Nalini Tiwari   +3 more
doaj   +1 more source

DNA Barcoding and Species Delimitation for Dogfish Sharks Belonging to the Squalus Genus (Squaliformes: Squalidae)

open access: yesDiversity, 2022
The Squalus genus comprises a group of small demersal sharks occurring circumglobally, popularly known as dogfish sharks. This genus exhibits a conserved morphology, thus making correct morphological identification difficult.
Ailton A. Ariza   +11 more
doaj   +1 more source

Genetic and Morphological Analyses Demonstrate That Schizolecis guntheri (Siluriformes: Loricariidae) Is Likely to Be a Species Complex

open access: yesFrontiers in Genetics, 2018
Schizolecis is a monotypic genus of Siluriformes widely distributed throughout isolated coastal drainages of southeastern Brazil. Previous studies have shown that fish groups found in isolated river basins tend to differentiate over time in the absence ...
Camila S. Souza   +5 more
doaj   +1 more source

A COI DNA barcoding survey of Pratylenchus species in the Great Plains Region of North America

open access: yesJournal of Nematology, 2019
Pratylenchus species are among the most common plant parasitic nematodes in the Great Plains Region of North America. Our goal was to survey Pratylenchus species diversity across the Great Plains region using a mitochondrial COI DNA barcode.
Ozbayrak Mehmet   +7 more
doaj   +1 more source

DNA Barcoding and Phylogenetics Relationship of Pangasiid Catfishes in Peninsular Malaysia Revealed the Impacts of Aquaculture on the Native Species Conservation

open access: yesHydrobiology, 2023
Pangasiids are an economically significant group of catfish, and many pangasiids are threatened in the wild from anthropogenic pressures, including increases in fishing pressure, habitat degradation, and improperly managed aquaculture practices.
Baharuddin Haslawati   +3 more
doaj   +1 more source

To be or not to be… Integrative taxonomy and species delimitation in the daddy long-legs spiders of the genus Physocyclus (Araneae, Pholcidae) using DNA barcoding and morphology [PDF]

open access: yesZooKeys, 2022
Integrative taxonomy is crucial for discovery, recognition, and species delimitation, especially in underestimated species complex or cryptic species, by incorporating different sources of evidence to construct rigorous species hypotheses.
Samuel Nolasco   +1 more
doaj   +3 more sources

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