Results 1 to 10 of about 536,898 (244)

Detecting the symplesiomorphy trap: a multigene phylogenetic analysis of terebelliform annelids [PDF]

open access: goldBMC Evolutionary Biology, 2011
Background For phylogenetic reconstructions, conflict in signal is a potential problem for tree reconstruction. For instance, molecular data from different cellular components, such as the mitochondrion and nucleus, may be inconsistent with each other ...
Zhong Min   +5 more
doaj   +4 more sources

Evolutionary Dynamics of Multigene Families in Triportheus (Characiformes, Triportheidae): A Transposon Mediated Mechanism? [PDF]

open access: yesFrontiers in Marine Science, 2020
Triportheus (Characiformes, Triportheidae) is a freshwater fish genus with 18 valid species. These fishes are widely distributed in the major river drainages of South America, having commercial importance in the fishing market, mainly in the Amazon basin.
Cassia F. Yano   +6 more
doaj   +4 more sources

A Reassessment of Phylogenetic Relationships in Class Oligohymenophorea (Protista, Ciliophora) Based on Updated Multigene Data. [PDF]

open access: yesEcol Evol
We report 97 new sequences, including SSU‐rRNA, ITS1‐5.8S‐ITS2 rRNA, LSU‐rRNA, mitochondrial cytochrome oxidase c subunit I, and mitochondrial small subunit ribosomal RNA genes of 30 oligohymenophorean populations. A comprehensive analysis of class Oligohymenophorea is conducted, encompassing 250 populations.
Li B   +7 more
europepmc   +2 more sources

Testing Phylogenetic Placement Accuracy of DNA Barcode Sequences on a Fish Backbone Tree: Implications of Backbone Tree Completeness and Species Representation. [PDF]

open access: yesEcol Evol
This study evaluates the accuracy of incorporating COI DNA barcode sequences into phylogenetic trees of bony fishes, utilizing a dataset of 27 genes across 4520 species. Our findings indicate that the placement accuracy is consistently high across all levels of backbone tree completeness, and that stratified sampling consistently outperforms random ...
Fernando MATM, Fu J, Adamowicz SJ.
europepmc   +2 more sources

Discovery of a new Isonychia species with distinctive characters from southwestern China, and preliminary exploration of its phylogenetic status (Ephemeroptera, Isonychiidae) [PDF]

open access: yesZooKeys
The genus Isonychia Eaton, 1871 is widely distributed across the Holarctic and Oriental regions. However, no representatives of this genus have been reported from southwestern China, a region known for its high biodiversity.
Pengxu Mu, Xiaolei Huang
doaj   +4 more sources

Chlorocillium sinense sp. nov. (Clavicipitaceae) and Calcarisporium guizhouense sp. nov. (Calcarisporiaceae) in Hypocreales from China [PDF]

open access: yesMycoKeys
Two new species, Chlorocillium sinense and Calcarisporium guizhouense, isolated from a spider and fruiting body of Cordyceps sp., are introduced. Morphological comparisons and phylogenetic analyses based on multigene datasets (ITS+LSU+RPB2+tef-1alpha ...
Wan-Hao Chen   +5 more
doaj   +4 more sources

First records of Tylopilus glutinosus Iqbal Hosen (Boletaceae) from Shorea robusta-dominated forests in tropical India: morphological description and phylogenetic estimation [PDF]

open access: yesCheck List, 2022
During the routine survey for exploring the hidden macrofungal wealth of tropical Sal (Shorea robusta Roth) forests in West Bengal and Jharkhand (India), we found a specimen similar to Tylopilus plumbeoviolaceous (Snell & E.A.Dick) Snell &
Dyutiparna Chakraborty   +3 more
doaj   +3 more sources

Comparative Osteology, Phylogeny and Classification of the Eastern South American Catfish Genus Trichomycterus (Siluriformes: Trichomycteridae)

open access: yesTaxonomy, 2021
Trichomycterus has been considered for a long time to be the most problematic genus of the diverse neotropical subfamily Trichomycterinae. Recently, Trichomycterus was restricted to a clade from eastern South America supported by molecular data, but no ...
Wilson J. E. M. Costa
doaj   +1 more source

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