Results 111 to 120 of about 117,691 (347)

Enigmatic Nodal and Lefty gene repertoire discrepancy: Latent evolutionary history revealed by vertebrate‐wide phylogeny

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Homology in vertebrate body plans is traditionally ascribed to the high‐level conservation of regulatory components within the genetic programs governing them, particularly during the “phylotypic stage.” However, advancements in embryology and molecular phylogeny have unveiled the dynamic nature of gene repertoires responsible for early ...
Shigehiro Kuraku
wiley   +1 more source

Discovery of Ll-CATH: a novel cathelicidin from the Chong’an Moustache Toad (Leptobrachium liui) with antibacterial and immunomodulatory activity

open access: yesBMC Veterinary Research
Background Cathelicidins are vital antimicrobial peptides expressed in diverse vertebrates, crucial for immunity. Despite being a new field, amphibian cathelicidin research holds promise. Results We isolated the cDNA sequence of the cathelicidin (Ll-CATH)
Jie Chen   +6 more
doaj   +1 more source

Development of node architecture and emergence of molecular organizer characteristics in the pig embryo

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background The avian node is the equivalent of the amphibian Spemann's organizer, as indicated by its ability to induce a secondary axis, cellular contribution, and gene expression, whereas the node of the mouse, which displays limited inductive capacities, was suggested to be a part of spatially distributed signaling.
Braah Harmoush   +2 more
wiley   +1 more source

Pregametogenesis: The Earliest Stages of Gonad and Germline Differentiation in Anuran Amphibians

open access: yesBiology
The gonads of amphibians, like other vertebrates, consist of somatic tissues, which create a specific environment essential for the differentiation of germline cells.
Maria Ogielska   +2 more
doaj   +1 more source

Molecular anatomy of emerging Xenopus left–right organizer at successive developmental stages

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Vertebrate left–right symmetry breaking is preceded by formation of left–right organizer. In Amphibian, this structure is formed by gastrocoel roof plate, which emerges from superficial suprablastoporal cells. GRP is subdivided into medial area, which generates leftward flow by rotating monocilia and lateral Nodal1 expressing areas,
Natalia Petri   +3 more
wiley   +1 more source

Assessing candidate DLX‐regulated genes in the first pharyngeal arch of chick embryos

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Insights into the development and evolution of asymmetrical jaws will require an understanding of the gene regulatory networks that underpin the differential morphogenesis of the maxillary and mandibular domains of the first pharyngeal arch in a variety of gnathostomes.
Afshan Sohail   +2 more
wiley   +1 more source

Antifungal isolates database of amphibian skin-associated bacteria and function against emerging fungal pathogens

open access: yes, 2015
Microbial symbionts of vertebrate skin have an important function in defense of the host against pathogens. In particular, the emerging chytrid fungus Batrachochytrium dendrobatidis, causes widespread disease in amphibians but can be inhibited via ...
D. Woodhams   +25 more
semanticscholar   +1 more source

A zoogeographic model for the evolution of diversity and endemism in Madagascar

open access: yesEcography, EarlyView.
The delineation of zoogeographic regions is essential for understanding the evolution of biodiversity. Madagascar, characterized by high levels of endemism and habitat diversity, presents unique challenges and opportunities for such studies. Traditional global zoogeographic classifications, largely based on vertebrates, may overlook finer‐scale ...
Gabriela P. Camacho   +3 more
wiley   +1 more source

Status and Trends of Amphibian Declines and Extinctions Worldwide

open access: yesScience, 2004
S. Stuart   +6 more
semanticscholar   +1 more source

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