Results 21 to 30 of about 46,416 (282)

Dorsoventral patterning in hemichordates: insights into early chordate evolution. [PDF]

open access: yesPLoS Biology, 2006
We have compared the dorsoventral development of hemichordates and chordates to deduce the organization of their common ancestor, and hence to identify the evolutionary modifications of the chordate body axis after the lineages split. In the hemichordate
Christopher J Lowe   +12 more
doaj   +1 more source

The Selector Gene apterous and Notch Are Required to Locally Increase Mechanical Cell Bond Tension at the Drosophila Dorsoventral Compartment Boundary. [PDF]

open access: yesPLoS ONE, 2016
The separation of cells with distinct fates and functions is important for tissue and organ formation during animal development. Regions of different fates within tissues are often separated from another along straight boundaries.
Marcus Michel   +5 more
doaj   +1 more source

A regulatory code for neurogenic gene expression in the Drosophila embryo [PDF]

open access: yes, 2004
Bioinformatics methods have identified enhancers that mediate restricted expression in the Drosophila embryo. However, only a small fraction of the predicted enhancers actually work when tested in vivo.
Erives, Albert   +6 more
core   +2 more sources

Transcriptome Reveals Multi Pigmentation Genes Affecting Dorsoventral Pattern in Avian Body

open access: yesFrontiers in Cell and Developmental Biology, 2020
Certain animals exhibit a special dorsoventral pattern with a lighter ventral side compared to the dorsal one and this phenomenon was preserved in the long-term evolution process. Birds also retain this trait. Recently, Inaba et al.
Yang Xi   +10 more
doaj   +1 more source

Laminar and dorsoventral molecular organization of the medial entorhinal cortex revealed by large-scale anatomical analysis of gene expression. [PDF]

open access: yesPLoS Computational Biology, 2015
Neural circuits in the medial entorhinal cortex (MEC) encode an animal's position and orientation in space. Within the MEC spatial representations, including grid and directional firing fields, have a laminar and dorsoventral organization that ...
Helen L Ramsden   +3 more
doaj   +1 more source

Visual Field Coordinate Systems in Visual Neurophysiology [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2023
In this work, algorithms have been developed to: 1. Compare visual field coordinate data, presented in different representation systems; 2. Determine the distance in degrees between any two points in the visual field; 3.
MARCELO GATTASS, RICARDO GATTASS
doaj   +1 more source

Requirement for Slit-1 and Robo-2 in zonal segregation of olfactory sensory neuron axons in the main olfactory bulb [PDF]

open access: yes, 2007
The formation of precise stereotypic connections in sensory systems is critical for the ability to detect and process signals from the environment. In the olfactory system, olfactory sensory neurons (OSNs) project axons to spatially defined glomeruli ...
Andrews, W   +4 more
core   +1 more source

Horizontal Boundary Cells, a Special Group of Somitic Cells, Play Crucial Roles in the Formation of Dorsoventral Compartments in Teleost Somite

open access: yesCell Reports, 2019
Summary: Establishment of robust gene expression boundary is crucial for creating elaborate morphology during development. However, mechanisms underlying boundary formation have been extensively studied only in a few model systems.
Kota Abe   +9 more
doaj   +1 more source

Ontogeny of ependymoglial cells lining the third ventricle in mice

open access: yesFrontiers in Endocrinology, 2023
IntroductionDuring hypothalamic development, the germinative neuroepithelium gives birth to diverse neural cells that regulate numerous physiological functions in adulthood.MethodsHere, we studied the ontogeny of ependymal cells in the mouse mediobasal ...
David Lopez-Rodriguez   +5 more
doaj   +1 more source

Conservation and diversification of an ancestral chordate gene regulatory network for dorsoventral patterning.

open access: yesPLoS ONE, 2011
Formation of a dorsoventral axis is a key event in the early development of most animal embryos. It is well established that bone morphogenetic proteins (Bmps) and Wnts are key mediators of dorsoventral patterning in vertebrates.
Iryna Kozmikova   +3 more
doaj   +1 more source

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