Results 1 to 10 of about 146,206 (254)

The brain regulatory program predates central nervous system evolution [PDF]

open access: yesScientific Reports, 2023
Understanding how brains evolved is critical to determine the origin(s) of centralized nervous systems. Brains are patterned along their anteroposterior axis by stripes of gene expression that appear to be conserved, suggesting brains are homologous ...
Dylan Faltine-Gonzalez   +2 more
doaj   +2 more sources

Intron and gene size expansion during nervous system evolution [PDF]

open access: yesBMC Genomics, 2020
Background The evolutionary radiation of animals was accompanied by extensive expansion of gene and genome sizes, increased isoform diversity, and complexity of regulation.
Matthew J. McCoy, Andrew Z. Fire
doaj   +2 more sources

Channelling evolution: canalization and the nervous system. [PDF]

open access: yesPLoS Biology, 2004
A recent paper suggests that genes can interact in networks to limit variation of phenotype.
Jeremy E Niven
doaj   +3 more sources

A developmental perspective on the evolution of the nervous system [PDF]

open access: yesDevelopmental Biology, 2021
The evolution of nervous systems in animals has always fascinated biologists, and thus multiple evolutionary scenarios have been proposed to explain the appearance of neurons and complex neuronal centers. However, the absence of a robust phylogenetic framework for animal interrelationships, the lack of a mechanistic understanding of development, and a ...
JOSÉ Maria Martin-Duran   +1 more
exaly   +4 more sources

Voltage-gated ion channel diversity underlies neuronal excitability and nervous system evolution [PDF]

open access: yesNature Communications
Nervous systems function via electrical excitability mediated by ion channels, an ancient preneuronal feature that many cells use to rapidly adjust behavior.
Jose Davila-Velderrain, Lena van Giesen
doaj   +2 more sources

Introduction to ‘Origin and evolution of the nervous system’ [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2015
In 1665, Robert Hooke demonstrated in Micrographia the power of the microscope and comparative observations, one of which revealed similarities between the arthropod and vertebrate eyes.
Frank Hirth, Nicholas Strausfeld
exaly   +4 more sources

The origin and evolution of chordate nervous systems [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2015
In the past 40 years, comparisons of developmental gene expression and mechanisms of development (evodevo) joined comparative morphology as tools for reconstructing long-extinct ancestral forms. Unfortunately, both approaches typically give congruent answers only with closely related organisms. Chordate nervous systems are good examples.
Linda Holland
exaly   +5 more sources

The evolution of the serotonergic nervous system

open access: yesProceedings of the Royal Society B: Biological Sciences, 2000
The pattern of development of the serotonergic nervous system is described from the larvae of ctenophores, platyhelminths, nemerteans, entoprocts, ectoprocts (bryozoans), molluscs, polychaetes, brachiopods, phoronids, echinoderms, enteropneusts and lampreys.
exaly   +4 more sources

Origin and Evolution of the Nervous System Considered from the Diffuse Nervous System of Cnidarians

open access: yesHikaku seiri seikagaku(Comparative Physiology and Biochemistry), 2016
Cnidarians have the most primitive nervous system in animal kingdom. Diffuse nerve net (called “diffuse nervous system”) covers the whole body. Cnidarians are considered the earliest metazoans to have evolved a nervous system and therefore offer possible insight into some of the fundamental properties of early nervous system.
Osamu Koizumi, Koizumi Osamu
exaly   +3 more sources

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