Results 31 to 40 of about 3,793 (125)

Apendicularias (Urochordata) y quetognatos (Chaetognatha) del Parque Nacional Isla del Coco, Costa Rica

Revista de Biología Tropical, 2012
Las apendicularias y quetognatos son miembros importantes del zooplancton pero poco estudiados en Costa Rica y no del todo en el Parque Nacional Isla del Coco, Pacífico tropical este.
Iván Castellanos-Osorio, Rosa María Hernández-Flores, Álvaro Morales-Ramírez, Marco Corrales-Ugalde   +3 more
doaj  

Temporal and spatial distribution of Thaliacea of the Urochordata around Hormuz Island, the Persian Gulf

‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2011
The class Thaliacea belongs to Urochordata which branched from phylum chordata. Thaliacea have three orders: Doliolida (Cyclomyaria), Pyrosomatida and Salpida (Desmomyaria) and all are considered marine plankton, holoplankton and microphages.
M. Eftekhar* ; A. Savari; H. Rezaei; A.R. Mahoori; R. Zare
doaj  

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

International 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

BMC 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, Walker P Roy, Pan Youlian, Fang Hung, Smith Brandon, Sikorska Marianna   +5 more
doaj   +1 more source

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

Species 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, Shunta Tanigawa, Hiroshi Namikawa   +2 more
doaj   +1 more source

Ascidians (Urochordata: Ascidiacea) from Arraial do Cabo, Rio de Janeiro, Brazil Ascídias (Urochordata: Ascidiacea) do Arraial do Cabo, Rio de Janeiro, Brasil

Iheringia: Série Zoologia, 2005
Simple and colonial ascidians were collected at different depths at Arraial do Cabo, Rio de Janeiro, between 2000 and 2003. The collection here presented includes representatives of the families Clavelinidae (Clavelina oblonga), Polycitoridae (Cystodytes dellechiajei), Polyclinidae (Polyclinum constellatum and Polyclinum molle sp.
Rosana M. da Rocha, Luciana V. G. Costa
openaire   +1 more source

Molecular Phylogeny and Morphology of Culeolus tenuis and C. uschakovi (Urochordata: Ascidiacea) Collected near the Chishima-Kamchatka Trench, Southeastern Hokkaido, Japan, with Special Reference to Significant Differences in the Culeolus-Ridge

Species Diversity
Molecular analyses of 18 specimens of Culeolus Herdman, 1881 collected in 2022 and 2023 near the southwestern limit of the Chishima-Kamchatka (Kuril) Trench, southeastern Hokkaido, between ca.
Teruaki Nishikawa, Yuji Ise, Shimpei F. Hiruta   +2 more
doaj   +1 more source

PHENOLOXIDASE IN THE COLONIAL ASCIDIAN BOTRYLLUS SCHLOSSERI (UROCHORDATA: ASCIDIACEA).

, 1994
Phenoloxidase activity was revealed in blood cells of the compound ascidian Botryllus schlosseri. The enzyme activity was significantly increased after preincubation of blood lysate with trypsin, chymotrypsin or foreign carbohydrates and inhibited by the copper-chelating agents phenylthiourea and diethyldithio-carbamate.
BALLARIN, LORIANO, CIMA, FRANCESCA, SABBADIN A.   +2 more
openaire   +1 more source

Chimerism following fusion in a clonal ascidian (Urochordata) [PDF]

Biological Journal of the Linnean Society, 2003
A. DOROTHEA SOMMERFELDT, John D. D. BISHOP, CHRISTINE A. WOOD   +2 more
openaire   +1 more source

Long-read sequencing reveals increased isoform diversity in key transcription factor effectors of intercellular signalling at the invertebrate-vertebrate transition. [PDF]

BMC Biol
Torres-Aguila NP, Salonna M, Shimeld SM, Hoppler S, Ferrier DEK.   +4 more
europepmc   +2 more sources