Results 11 to 20 of about 816 (171)

Phylogenetic position of a whale-fall lancelet (Cephalochordata) inferred from whole mitochondrial genome sequences [PDF]

open access: yesBMC Evolutionary Biology, 2007
Background The lancelet Asymmetron inferum (subphylum Cephalochordata) was recently discovered on the ocean floor off the southwest coast of Japan at a depth of 229 m, in an anaerobic and sulfide-rich environment caused by decomposing bodies of the sperm
Nishida Mutsumi   +5 more
doaj   +2 more sources

Ciliary Hovering in Larval Lancelets (=Amphioxus)

open access: yesThe Biological Bulletin, 1995
Larvae of lancelets (=amphioxus) are of special interest because they figure prominently in debates about vertebrate origins (1), can sometimes grow into a giant "amphioxides" form (2, 3), have a puzzling right-left asymmetry (4), and constitute a major zooplankton resource in parts of the Atlantic (5).
Stokes, M D, Holland, N D
openaire   +5 more sources

Occurrence of Asymmetron lucayanum Andrews, 1893 (Cephalochordata, Branchiostomatidae) from Cozumel Island, Mexican Caribbean [PDF]

open access: yesCheck List
Records of cephalochordates, also known as lancelets, are rare in the Gulf of Mexico and the Caribbean Sea. In this work, we present evidence of the presence of Asymmetron lucayanum Andrews, 1893 (Amphioxiformes, Branchiostomatidae) on Cozumel Island ...
Camila Itamar Canul-Quiñonez   +2 more
doaj   +4 more sources

Notes on Lancelets and Lampreys

open access: yes, 1907
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Fowler, Henry W.,
openaire   +3 more sources

The lancelets and lampreys of Australia

open access: yes, 1932
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +3 more sources

On the lancelets of South East Africa

open access: yes, 1958
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Webb, J. E.
openaire   +3 more sources

Distribution and localization of immunoreactive FMRFamide-like peptides in the lancelet.

open access: yesEuropean journal of histochemistry : EJH, 1999
Immunofluorescence was used to study the distribution of FMRFamide (Phe-Met-Arg-Phe-NH2) in premetamorphic larvae and adults of the lancelet, Branchiostoma lanceolatum. In the larvae, FMR-Famide-containing presumably neuronal perikarya and fibers were limited to the anterior third of the dorsal nerve cord.
M. MASSARI   +2 more
core   +4 more sources

Year-round reproduction and induced spawning of Chinese amphioxus, Branchiostoma belcheri, in laboratory. [PDF]

open access: yesPLoS ONE, 2013
Amphioxus is a best candidate for studying the evolutionary and developmental mechanisms of vertebrates, because of its vertebrate-like but much simpler morphology, embryonic development and genome structure.
Guang Li, ZongHuang Shu, Yiquan Wang
doaj   +1 more source

Optical Clearing and Light Sheet Microscopy Imaging of Amphioxus

open access: yesFrontiers in Cell and Developmental Biology, 2021
Cephalochordates (amphioxi or lancelets) are representatives of the most basally divergent group of the chordate phylum. Studies of amphioxus development and anatomy hence provide a key insight into vertebrate evolution.
Simona Machacova   +4 more
doaj   +1 more source

Phylogenetic relationships of the lancelets of the genus Branchiostoma in China inferred from mitochondrial genome analysis [PDF]

open access: yes, 2010
It is commonly accepted that the Branchiostoma lancelets in South and North China belong to Branchiostoma belcheri (Gray, 1847) and Branchiostoma belcheri tsingtauense (Tchang and Koo, 1934),respectively. Three partial mitochondrial DNA (mtDNA) fragments
Sakurai, Y   +4 more
core   +1 more source

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