Results 91 to 100 of about 11,717 (208)

Amphioxus: a peaceful anchovy fillet to illuminate Chordate Evolution (I)

International Journal of Biological Sciences, 2006
The cephalochordate amphioxus occupies a central place in evolutionary thoughts to the origin of Vertebrates. With a prototypical vertebrate-like body plan and a preduplicative genome, the friendly lancelet seems to be in morphological and genetic ...
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Perforin evolved from a gene duplication of MPEG1, followed by a complex pattern of gene gain and loss within Euteleostomi

BMC Evolutionary Biology, 2012
Background The pore-forming protein perforin is central to the granule-exocytosis pathway used by cytotoxic lymphocytes to kill abnormal cells. Although this mechanism of killing is conserved in bony vertebrates, cytotoxic cells are present in other ...
D’Angelo Michael E, Dunstone Michelle A, Whisstock James C, Trapani Joseph A, Bird Phillip I   +4 more
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An ancient apical patterning system sets the position of the forebrain in chordates. [PDF]

The evolutionary origin of the vertebrate brain remains a major subject of debate, as its development from a dorsal tubular neuroepithelium is unique to chordates.

core   +2 more sources

Space invaders: House Sparrow densities along three urban-agricultural landscapes

Avian Conservation and Ecology, 2017
One of the most successful avian urban invaders is the House Sparrow (Passer domesticus). Here, we examine House Sparrow numbers in the urban-agricultural landscape of three cities, one where the sparrow is native (Barcelona) and two where it is ...
Ian MacGregor-Fors, Javier Quesada, Jeffrey G-H. Lee, Pamela J. Yeh   +3 more
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Monoaminergic modulation of photoreception in ascidian:evidence for a proto-hypothalamo-retinal territory [PDF]

, 2012
The retina of craniates/vertebrates has been proposed to derive from a photoreceptor prosencephalic territory in ancestral chordates, but the evolutionary origin of the different cell types making the retina is disputed.
Kusakabe, Takehiro G, Takeo Horie, Brown, Euan R., Razy-Krajka, Florian, Brown, Euan R, Takehiro G Kusakabe, Sasakura, Yasunori, Jacques Callebert, Yasunori Sasakura, Kusakabe, Takehiro G., Jean-Stéphane Joly, Brown, Euan R; id_orcid, Philippe Vernier, Vernier, Philippe, Callebert, Jacques, Horie, Takeo, Florian Razy-Krajka, Joly, Jean-Stéphane, Euan R Brown   +18 more
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Chitin-based barrier immunity and its loss predated mucus-colonization by indigenous gut microbiota

Nature Communications, 2018
The coevolution of the animal gut mucosa and the gut microbiota is poorly understood. Here, Nakashima et al. identify intestinal chitinous membranes in basal chordates and ray-finned fish, and propose that the loss of this chitin barrier allowed mucus ...
Keisuke Nakashima, Satoshi Kimura, Yu Ogawa, Soichi Watanabe, Satoshi Soma, Toyoji Kaneko, Lixy Yamada, Hitoshi Sawada, Che-Huang Tung, Tsai-Ming Lu, Jr-Kai Yu, Alejandro Villar-Briones, Sakura Kikuchi, Noriyuki Satoh   +13 more
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Enteropneusts and chordate evolution [PDF]

Current Biology, 1996
Nübler-Jung, Katharina, Arendt, Detlev
openaire   +2 more sources

Chordates [PDF]

Current Biology, 2005
openaire   +2 more sources

Comparative expression analysis of transcription factor genes in the endostyle of invertebrate chordates

, 2005
The endostyle of invertebrate chordates is a pharyngeal organ that is thought to be homologous with the follicular thyroid of vertebrates. Although thyroid-like features such as iodine-concentrating and peroxidase activities are located in the ...
Francoise Mazet, Peijun Zhang, Kinya Yasui, Michio Ogasawara, Jin Hiruta, Mazet, F., Yasui, K., Hiruta, J., Zhang, P. J., Ogasawara, M.   +9 more
core   +1 more source

Amphioxus: a peaceful anchovy fillet to illuminate Chordate Evolution (II)

International Journal of Biological Sciences, 2006
The genome of the amphioxus is on the horizon. With Linda Holland and Jeremy Gibson-Brown at the forefront, with all the amphioxus community behind, and with the Joint Genome Institute, the amphioxus genome will see the light this year, 2006.
Jordi Garcia-Fernàndez
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