Results 51 to 60 of about 1,125 (135)

Species delimitation of neotropical Characins (Stevardiinae): Implications for taxonomy of complex groups.

PLoS ONE, 2019
Accurate species delimitation is crucial for studies of phylogeny, phylogeography, ecology, conservation and biogeography. The limits of species and genera in the Characidae family are controversial due to its uncertain phylogenetic relationships, high ...
Jorge E García-Melo, Claudio Oliveira, Guilherme José Da Costa Silva, Luz E Ochoa-Orrego, Luiz Henrique Garcia Pereira, Javier A Maldonado-Ocampo   +5 more
doaj   +1 more source

Species diversity of freshwater shrimp in Henan Province, China, based on morphological characters and COI mitochondrial gene

Ecology and Evolution, 2021
Freshwater shrimp are a rich species group, with a long and problematic taxonomic history attributed to their wide distribution and similar morphological characteristics.
Chuan‐jiang Zhou, Meng‐xia Feng, Yong‐tao Tang, Chang‐xing Yang, Xiao‐lin Meng, Guo‐xing Nie   +5 more
doaj   +1 more source

Integrative taxonomy reveals two new species of whiptail catfishes Loricaria (Siluriformes: Loricariidae) from northeastern Brazil

Journal of Fish Biology, Volume 108, Issue 6, Page 2080-2097, June 2026.
Abstract Two new species of whiptail catfish, Loricaria (Siluriformes: Loricariidae), were discovered in the Munim and Itapecuru river basins, Maranhão State, northeastern Brazil, through an integrative taxonomic approach combining morphology and mitochondrial DNA.
Ananda. C. Serejo‐Saraiva, Nivaldo M. Piorski, Felipe P. Ottoni, Mark H. Sabaj, Sergio M. Q. Lima   +4 more
wiley   +1 more source

New Mitogenomic Resources for the Caiman yacare (Daudin, 1802) From Bolivia

Ecology and Evolution, Volume 16, Issue 4, April 2026.
New mitochondrial genomes were generated to enhance the mitochondrial genetic resources available for Caiman yacare. Mitochondrial genomes of approximately 16 kb were obtained through genome skimming using Illumina sequencing technology. The assemblies revealed a composition typical of vertebrate mitogenomes, including 13 protein‐coding genes, 2 rRNA ...
Guido Miranda, Ninón Ríos, Nicolas Hubert   +2 more
wiley   +1 more source

Excluding spatial sampling bias does not eliminate oversplitting in DNA‐based species delimitation analyses

Ecology and Evolution, 2021
DNA barcoding and DNA‐based species delimitation are major tools in DNA taxonomy. Sampling has been a central debate in this context, because the geographical composition of samples affects the accuracy and performance of DNA barcoding.
Daniel Lukic, Jonas Eberle, Jana Thormann, Carolus Holzschuh, Dirk Ahrens   +4 more
doaj   +1 more source

DNA barcoding and species delimitation of crickets, katydids, and grasshoppers (Orthoptera) from Central and Southern Europe, with focus on the Mediterranean Basin [PDF]

Arthropod Systematics & Phylogeny
The Mediterranean Basin, recognized as a global biodiversity hotspot, harbors a remarkable diversity of grasshoppers, katydids, and crickets, many of which are endemic and potentially contain cryptic lineages.
Mattia Ragazzini, Roy M. J. C. Kleukers, Luc Willemse, Baudewijn Ode, Lara-Sophie Dey, Oliver Hawlitschek   +5 more
doaj   +3 more sources

Contrasting Dispersal Patterns of Co‐Occurring Benthic Sister Sea Star Labidiaster Species (Asteroidea: Heliasteridae) in the Southern Ocean

Ecology and Evolution, Volume 16, Issue 4, April 2026.
This study aimed to employ genetic methods to analyze the phylogeny, species boundaries, population structure, demographic history and genetic connectivity for Southern Ocean sea stars, Labidiaster radiosus and L. annulatus. A sister‐species relationship was revealed between L. radiosus and L.
Nicola Rodewald, Nerida G. Wilson, Sally C. Y. Lau, Jan M. Strugnell   +3 more
wiley   +1 more source

Discovery of five new species of Allacta from Yunnan and Hainan, China (Blattodea, Pseudophyllodromiidae) [PDF]

ZooKeys
We examined new Allacta materials from Yunnan and Hainan Province, China, and discovered new species using both morphological and molecular species delimitation (ABGD) methods. Five new species are described: A. bifolium Li & Wang, sp.
Bian-Lun Li, Peng-Hui Hu, Lin Guo, Yan-Li Che, Zong-Qing Wang   +4 more
doaj   +3 more sources

UITOTO: a software for generating molecular diagnoses for species descriptions

Cladistics, Volume 42, Issue 2, Page 193-205, April 2026.
Abstract Millions of species remain undescribed, and each eventually will require a species description with a diagnosis. Yet, we lack software that can derive state‐specific and contrastive molecular diagnoses and allows the user to validate them based on all available sequences for the taxon under study. Here we introduce UITOTO, which addresses this
Ambrosio Torres, Leshon Lee, Amrita Srivathsan, Rudolf Meier   +3 more
wiley   +1 more source

Integrative taxonomy unveils a new lineage within Acanthogonatus centralis Goloboff, 1995 (Araneae, Mygalomorphae, Pycnothelidae): description of Acanthogonatus monicae sp. nov. from central Argentina [PDF]

Evolutionary Systematics
A new species of Pycnothelidae Chamberlin, 1917 from the Pampean mountain ranges, Córdoba, Argentina is described and illustrated: Acanthogonatus monicae sp. nov. Here, we combine morphological analyses, molecular phylogeny based on the COI gene, species
Fiorella Signorotto, Nelson Ferretti
doaj   +3 more sources