Results 1 to 10 of about 14,854 (216)

SSU rDNA divergence in planktonic foraminifera: molecular taxonomy and biogeographic implications. [PDF]

PLoS ONE, 2014
The use of planktonic foraminifera in paleoceanography requires taxonomic consistency and precise assessment of the species biogeography. Yet, ribosomal small subunit (SSUr) DNA analyses have revealed that most of the modern morpho-species of planktonic ...
Aurore André, Frédéric Quillévéré, Raphaël Morard, Yurika Ujiié, Gilles Escarguel, Colomban de Vargas, Thibault de Garidel-Thoron, Christophe J Douady   +7 more
doaj   +8 more sources

Ciliate Environmental Diversity Can Be Underestimated by the V4 Region of SSU rDNA: Insights from Species Delimitation and Multilocus Phylogeny of Pseudokeronopsis (Protist, Ciliophora) [PDF]

Microorganisms, 2019
Metabarcoding and high-throughput sequencing methods have greatly improved our understanding of protist diversity. Although the V4 region of small subunit ribosomal DNA (SSU-V4 rDNA) is the most widely used marker in DNA metabarcoding of eukaryotic ...
Zifeng Zhan, Ju Li, Kuidong Xu
doaj   +2 more sources

Taxonomy and SSU rDNA-Based Phylogeny of Two Heterotrich Ciliates (Ciliophora, Heterotrichea) Collected From Subtropical Wetlands of China, Including the Description of a New Species, Linostomella pseudovorticella n. sp. [PDF]

Frontiers in Microbiology, 2021
The Heterotrichea Stein, 1859 are a group of ciliated protists (single-celled eukaryotes) that occur in a wide variety of aquatic habitat where they play important roles in the flow of nutrients and energy within the microbial food web.
Didi Jin, Didi Jin, Xuetong Zhao, Tingting Ye, Jie Huang, Alan Warren, Saleh A. Al-Farraj, Xiangrui Chen   +7 more
doaj   +2 more sources

A Multigene Perspective on the Phylogeny and Evolutionary Relationships of Class Spirotrichea (Ciliophora). [PDF]

Ecol Evol
Despite extensive research, evolutionary relationships within the class Spirotrichea remain contentious due to limitations of single‐gene phylogenies and sparse molecular data. This study provides the first comprehensive phylogenomic framework integrating four molecular markers (SSU‐rRNA, ITS1‐5.8S‐ITS2, LSU‐rRNA, mtSSU‐rRNA), morphological traits, and
Li B, Lian C, Liu Y, Wang Z, Pan X, Wang L.   +5 more
europepmc   +2 more sources

Integrative taxonomy and phylogenetic analyses of two Ceratomyxa species (Myxozoa, Ceratomyxidae) from the China Sea, including a new species description [PDF]

ZooKeys
Two species of Ceratomyxa (Myxozoa: Ceratomyxidae) from teleosts in the China Sea are investigated using an integrative approach which combines morphological characteristcs, parasitic traits, and molecular data including small subunit ribosomal DNA (SSU ...
Chengzhong Yang, Yuting Yang, Xue Chen, Shenghua Yang, Yang Zhou, Honggang Ma, Yang Liu, Yuanjun Zhao   +7 more
doaj   +4 more sources

Magniporophytum gen. nov. and Orientalilithon gen. nov. (Hapalidiales, Corallinophycidae): Two new genera of coralline red algae from the Pacific Ocean, including the description of three new species. [PDF]

J Phycol
Abstract We propose, based on a robust set of molecular and morpho‐anatomical data of specimens from warm‐temperate Japan, two new genera of non‐geniculate coralline algae accommodating both attached and rhodolith‐forming species: Magniporophytum gen. nov. containing M. variabile sp. nov. (the generitype) and M. epizoicum sp. nov.
Min-Khant-Kyaw, Kato A, Baba M.
europepmc   +2 more sources

Molecular phylogenetic evaluation of classification and scenarios of character evolution in calcareous sponges (Porifera, Class Calcarea). [PDF]

, 2012
Calcareous sponges (Phylum Porifera, Class Calcarea) are known to be taxonomically difficult. Previous molecular studies have revealed many discrepancies between classically recognized taxa and the observed relationships at the order, family and genus ...
Voigt, Oliver, Wörheide, Gert, Wülfing, Eilika   +2 more
core   +16 more sources

Single-Strand Conformation Polymorphism Fingerprint Method for Dictyostelids

Frontiers in Microbiology, 2021
Dictyostelid social amoebae are a highly diverse group of eukaryotic soil microbes that are valuable resources for biological research. Genetic diversity study of these organisms solely relies on molecular phylogenetics of the SSU rDNA gene, which is not
Phongthana Pasookhush, Asmatullah Usmani, Asmatullah Usmani, Kowit Suwannahong, Prasit Palittapongarnpim, Prasit Palittapongarnpim, Kamolchanok Rukseree, Kanchiyaphat Ariyachaokun, Sureemas Buates, Suradej Siripattanapipong, Pravech Ajawatanawong   +10 more
doaj   +1 more source

Are microbes fundamentally different than macroorganisms? Convergence and a possible case for neutral phenotypic evolution in testate amoeba (Amoebozoa: Arcellinida) [PDF]

Royal Society Open Science, 2015
This study reveals extensive phenotypic convergence based on the non-monophyly of genera and morphospecies of testate (shelled) amoebae. Using two independent markers, small subunit ribosomal DNA (ssu-rDNA) and mitochondrial cytochrome oxidase I (COI ...
Angela M. Oliverio, Daniel J. G. Lahr, Jessica Grant, Laura A. Katz   +3 more
doaj   +1 more source

Assessing whether alpha-tubulin sequences are suitable for phylogenetic reconstruction of Ciliophora with insights into its evolution in euplotids. [PDF]

PLoS ONE, 2012
The current understanding of ciliate phylogeny is mainly based on analyses of a single gene, the small subunit ribosomal RNA (SSU-rDNA). However, phylogenetic trees based on single gene sequence are not reliable estimators of species trees, and SSU-rDNA ...
Zhenzhen Yi, Laura A Katz, Weibo Song
doaj   +1 more source