Results 21 to 30 of about 643 (175)
Origin and evolution of the Rax homeobox gene by comprehensive evolutionary analysis
FEBS Open Bio, Volume 10, Issue 4, Page 657-673, April 2020., 2020 Evolution of RAX transcription factor, crucial for eye development, was comprehensively analyzed. Our analyses suggest that Rax appeared in the common ancestor of Cnidaria and Bilateria. Jawed vertebrate Rax and Rax2 might originate from segmental duplication of the ancient Rax locus. At least five independent Rax2 gene loss events occurred in mammals.
Tetsuo Kon, Takahisa Furukawa
wiley +1 more source
Kelp Forest Zooplankton, Forage Fishes, and Juvenile Salmonids of the Northeast Pacific Nearshore
Marine and Coastal Fisheries, Volume 12, Issue 1, Page 4-20, February 2020., 2020 Abstract Kelp forests are an important ecological component of temperate coastal systems that are sensitive to anthropogenic disturbance and are in decline in many locations globally. In the northeastern Pacific Ocean off the coast of Washington, USA, bull kelp Nereocystis luetkeana forests are seasonally used by juvenile salmonids and forage fishes ...
J. Anne Shaffer +2 more
wiley +1 more source
Journal of Marine Science and Engineering, 2020 Information on the in situ diet of juvenile chaetognaths is critical for understanding the population recruitment of chaetognaths and their functional roles in marine food web.
Lingli Wang +5 more
doaj +1 more source
Evidence for involvement of Wnt signalling in body polarities, cell proliferation, and the neuro-sensory system in an adult ctenophore. [PDF]
PLoS ONE, 2013 Signalling through the Wnt family of secreted proteins originated in a common metazoan ancestor and greatly influenced the evolution of animal body plans. In bilaterians, Wnt signalling plays multiple fundamental roles during embryonic development and in
Muriel Jager +5 more
doaj +1 more source
Growth rate of Pleurobrachia bachei determined experimentally
, 2014 Growth rate of Pleurobrachia bachei determined ...
Hirota, J, J Hirota (7890890)
core +2 more sources
Scientia Marina, 2006 A systematic account is provided of the siphonophores, medusae, ctenophores, molluscs and salps net-collected in basins of the Gulf of Maine and adjacent canyons during three cruises carried out in September 2002, 2003 and 2004.
Francesc Pagès +2 more
doaj +1 more source
Observations on the Ecology ofPleurobrachia Pileus(Ctenophora) in the Southern Benguela Ecosystem [PDF]
African Journal of Marine Science, 2003 The vertical distribution, abundance and size composition of a population of Pleurobrachia pileus was studied during a six-day drogue study conducted off the west coast of South Africa in February 1995. The population was centred in deep water, possibly because of the presence of a potential predator, Beroe sp., at shallower depths. The population of P.
Buecher, Emmanuelle +2 more
openaire +3 more sources
Scientia Marina, 2000 Periodic swarms or blooms of gelatinous macrozooplankton have a negative effect on many human activities such as tourism, fisheries, and industry, but for several reasons (sampling procedures, underestimation of their real abundance, etc.), they have ...
H. W. Mianzan, R. A. Guerrero
doaj +1 more source
Rapid evolution of the compact and unusual mitochondrial genome in the ctenophore, Pleurobrachia bachei [PDF]
Molecular Phylogenetics and Evolution, 2012 Ctenophores are one of the most basally branching lineages of metazoans with the largest mitochondrial organelles in the animal kingdom. We sequenced the mitochondrial (mtDNA) genome from the Pacific cidipid ctenophore, Pleurobrachia bachei. The circular mitochondrial genome is 11,016 nts, with only 12 genes, and one of the smallest metazoan mtDNA ...
Andrea B, Kohn +5 more
openaire +2 more sources
Seasonal Size Composition of Gelatinous Macrozooplankton in the Sinop Peninsula of Black Sea
Marine Science and Technology Bulletin, 2019 In this study, size compositions of Aurelia aurita (Linnaeus, 1758), Pleurobrachia pileus (O. F. Müller, 1776) and Mnemiopsis leidyi A. Agassiz, 1865 were presented seasonally between March 2015 and February 2016 at the Sinop Peninsula of Black Sea ...
Zekiye BİRİNCİ ÖZDEMİR +2 more
doaj +1 more source