Results 21 to 30 of about 3,194 (177)

Gene order data from a model amphibian (Ambystoma): new perspectives on vertebrate genome structure and evolution

open access: yesBMC Genomics, 2006
Background Because amphibians arise from a branch of the vertebrate evolutionary tree that is juxtaposed between fishes and amniotes, they provide important comparative perspective for reconstructing character changes that have occurred during vertebrate
Voss S Randal, Smith Jeramiah J
doaj   +1 more source

Niche determinants in a salamander complex: Does hybridism or reproductive parasitism explain patterns of distribution?

open access: yesEcosphere, 2020
Organisms with multiple biotic attributes may also have conflicting niche determinants, and we assessed whether the realized niche reflects single or multiple biotic attributes.
Peter B. Mills   +2 more
doaj   +1 more source

Histological image data of limb skeletal tissue from larval and adult Ambystoma mexicanum

open access: yesData in Brief, 2016
The data presented in this article are related to the article entitled “Cartilage and bone cells do not participate in skeletal regeneration in Ambystoma mexicanum limbs” [1].
Catherine D. McCusker   +4 more
doaj   +1 more source

Time and time again: unisexual salamanders (genus Ambystoma) are the oldest unisexual vertebrates

open access: yesBMC Evolutionary Biology, 2010
Background The age of unisexual salamanders of the genus Ambystoma is contentious. Recent and ancient evolutionary histories of unisexual Ambystoma were proposed by a few separate studies that constructed phylogenies using mitochondrial DNA markers ...
Bi Ke, Bogart James P
doaj   +1 more source

HDAC Inhibitor Titration of Transcription and Axolotl Tail Regeneration

open access: yesFrontiers in Cell and Developmental Biology, 2021
New patterns of gene expression are enacted and regulated during tissue regeneration. Histone deacetylases (HDACs) regulate gene expression by removing acetylated lysine residues from histones and proteins that function directly or indirectly in ...
S. Randal Voss   +10 more
doaj   +1 more source

Ambystoma rosaceum Taylor, 1941, the Tarahumara Salamander (Caudata: Ambystomatidae), a new state record for Aguascalientes, México [PDF]

open access: yesCheck List, 2015
We report an adult male specimen of the salamander Ambystoma rosaceum from the oak forest and grassland habitats in the Sierra Fría located in the Municipality of San José de Gracia, Aguascalientes, México. This specimen represents the first state record
Rubén Carbajal Márquez   +2 more
doaj   +3 more sources

Body Size Is Positively Correlated With Conspicuous Coloration in Ambystoma Salamanders, but Negatively Correlated With Conspicuous Coloration in Plethodon Salamanders

open access: yesFrontiers in Ecology and Evolution, 2018
Conspicuous coloration coupled with secondary defensive mechanisms is known as aposematic coloration and is used in predator avoidance and defense. Classic theory argues that aposematic signals tend to be more effective in larger organisms as they are ...
Monica M. Winebarger   +6 more
doaj   +1 more source

Relationships between neuronal cell adhesion molecule and LHRH neurons in the urodele brain: a developmental immunohistochemical study

open access: yesEuropean Journal of Histochemistry, 2009
Polysialic acid (PSA), a homopolymer attached to neural cell adhesion molecule (NCAM) is considered a major hallmark of vertebrate cell migration. We studied the distribution of PSA-NCAM by immunohistochemistry, during brain development, in two urodele ...
S Gianola, P Clairambault, MF Franzoni
doaj   +1 more source

Estudio de la inactivación filogenética de los genes Nanog postembrionario en comparación con el Ambystoma mexicanum

open access: yesBiociencias, 2015
Introducción: El proceso de regeneración puede ocurrir en múltiples niveles de la organización biológica y la habilidad de los diferentes organismos para regenerar partes faltantes es altamente variable.
Yurley Rosany Tatiana Ortega García   +1 more
doaj   +1 more source

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