Results 51 to 60 of about 361 (104)

Rapid Oocyte Growth and Artificial Fertilization of the Larvaceans Oikopleura dioica and Oikopleura longicauda [PDF]

open access: yes, 1998
We describe here rapid gamete growth and artificial fertilization method of species of the larvaceans (appendicularians), Oikopleura dioica and O. longicauda (Family Oikopleuridae: Class Appendicularia: Subphylum Urochordata).
Nishino, Atsuo, Morisawa, Masaaki
core   +1 more source

Rapid Evolutionary Rates and Unique Genomic Signatures Discovered in the First Reference Genome for the Southern Ocean Salp, Salpa thompsoni (Urochordata, Thaliacea) [PDF]

open access: yes, 2016
A preliminary genome sequence has been assembled for the Southern Ocean salp, Salpa thompsoni (Urochordata, Thaliacea). Despite the ecological importance of this species in Antarctic pelagic food webs and its potential role as an indicator of changing ...
Trusiak, Sarah   +6 more
core   +1 more source

Metaphylogeny of 82 gene families sheds a new light on chordate evolution

open access: yesInternational Journal of Biological Sciences, 2006
Achieving a better comprehension of the evolution of species has always been an important matter for evolutionary biologists. The deuterostome phylogeny has been described for many years, and three phyla are distinguishable: Echinodermata (including sea ...
doaj  

Evolution of motif variants and positional bias of the cyclic-AMP response element

open access: yesBMC Evolutionary Biology, 2007
Background Transcription factors regulate gene expression by interacting with their specific DNA binding sites. Some transcription factors, particularly those involved in transcription initiation, always bind close to transcription start sites (TSS ...
Famili A Fazel   +5 more
doaj   +1 more source

The carboxylesterase/cholinesterase gene family in invertebrate deuterostomes

open access: yes, 2012
Carboxylesterase/cholinesterase family members are responsible for controlling the nerve impulse, detoxification and various developmental functions, and are a major target of pesticides and chemical warfare agents.
Johnson G., Moore S.W.
core   +1 more source

The Establishment of Complement System Is from Gene Duplication and Domain Shuffling

open access: yes
The mammalian complement system constitutes a highly sophisticated body defense machinery. The evolutionary origin of the complement system can be traced to Coelenterata as the presence of the central component C3 and two activation proteases BF and MASP.
Chang Liu   +3 more
core   +1 more source

Taxonomy of Eudistoma okai (Urochordata: Ascidiacea) Inhabiting the Pacific Coast of Japan, with a Revised Description of Larvae

open access: yesSpecies Diversity
The validity of Eudistoma okai Sanamyan, 2022, proposed as a new replacement name for E. parvum (Oka, 1927), as originally described in the binomen Distoma parva (incorrect original spelling; corrected as D. parvum) and thus a junior primary homonym of D.
Teruaki Nishikawa   +2 more
doaj   +1 more source

Metazoa composition in multinet samples.

open access: yes, 2015
Combined composition of metazoa at each station in the multinet samples. Arthro = Arthropoda; Urocho = Urochordata. Other accounts for those phyla, which accounted for less than 3% of a sample or OTUs, which were not classified at the phyla level.
Xabier Irigoien (146822)   +1 more
core   +1 more source

Electrophysiological Analysis of Antimicrobial Peptides in Diverse Species

open access: yes, 2019
This study describes a technical platform that allows us to measure the pore-forming activity of antimicrobial peptides (AMPs) in the lipid bilayer and estimate antimicrobial activity. We selected six different AMPs of diverse species from urochordata to
Ryuji Kawano (605691)   +5 more
core   +1 more source

Coastal marine zooplankton:a practical manual for students

open access: yes, 1991
This photographic identification guide includes examples or representative forms of the major groups in phyletic sequence. The taxa illustrated are the phyla Sarcomastigophora (Protozoa); Cnidaria; Ctenophora; Nemertea; Annelida; Arthropoda (the class ...
Laverack, M. S., Todd, C. D.
core   +1 more source

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