Results 41 to 50 of about 6,618 (168)

Cambrian Chordates and Vetulicolians

Geosciences, 2019
Deuterostomes make a sudden appearance in the fossil record during the early Cambrian. Two bilaterian groups, the chordates and the vetulicolians, are of particular interest for understanding early deuterostome evolution, and the main objective of this ...
Mark A. S. McMenamin
doaj   +1 more source

The association between neural crest‐derived glia and melanocyte lineages throughout development and disease

Developmental Dynamics, EarlyView.
Abstract Neural crest cells are a transient cell population that emerges from the dorsal neural tube during neurulation and migrates extensively throughout the embryo. Among their diverse derivatives, glial cells (such as Schwann and satellite ganglionic cells) and melanocytes represent two major lineages. In vitro studies suggested they share a common
Chaya Kalcheim
wiley   +1 more source

From tropical to sub-tropical: Prolonged reproductive activity of the invasive ascidian Microcosmus exasperatus in the eastern Mediterranean

Frontiers in Ecology and Evolution, 2016
The solitary ascidian Microcosmus exasperatus is globally distributed in tropical and sub-tropical waters. In the Mediterranean it is considered an invasive species introduced through the Suez Canal, with a restricted distribution in the eastern basin ...
Lilach Raijman Nagar, Noa Shenkar, Noa Shenkar   +2 more
doaj   +1 more source

Noncanonical Nucleotides in the Genome Around the Maternal‐Zygotic Transition

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
In this paper, Kazzazi et al. provide a comprehensive review of the dynamics of nonconventional nucleotides in the genome during early developmental stages, hypothesizing a potential role for these nucleotides in the activation of the zygotic genome. ABSTRACT From the very moment of fertilization and throughout development, the cells of animal embryos ...
Latifa Kazzazy, Dávid Mező, Kinga K. Nagy, Viktória Perey‐Simon, Judit Tóth, Angéla Békési, Beáta Vértessy, Máté Varga   +7 more
wiley   +1 more source

Novel, Post-Translationally Modified Peptide Antibiotics from Solitary Tunicates [PDF]

, 2004
Although the pharmaceutical industry has “mined” the world of soil bacteria,streptomycetes and fungi to find novel antimicrobial molecules, the emergence of resistant superbugs necessitates identifying new antibiotic sources.
Vacquier, Victor, Taylor, Steven
core   +3 more sources

Is DNA metabarcoding an option for formaldehyde‐preserved zooplankton time series?

Limnology and Oceanography: Methods, EarlyView.
Abstract The recovery of amplifiable DNA from formaldehyde‐fixed (FF) zooplankton samples has long been considered problematic, but advances in degraded‐DNA retrieval have renewed interest in FF samples. To access the information stored in long‐term zooplankton time series, we evaluated methods for extracting amplifiable DNA from community samples ...
Aitor Albaina, Anders Lanzén, Irati Miguel, Fernando Rendo, María Santos   +4 more
wiley   +1 more source

No way back: decadal lack of functional recovery of a coralligenous community in a warming Mediterranean

Oikos, EarlyView.
Anthropogenic disturbances are degrading nature at a rate that exceeds its capacity to recover. While considerable research has focused on understanding ecosystem impacts, recovery processes remain comparatively overlooked, particularly in marine ecosystems, where long‐term data on how highly complex systems respond to disturbances are scarce.
Yanis Zentner, Joaquim Garrabou, Pol Capdevila, Natalia Ruiz‐Valero, Daniel Gómez‐Gras, Núria Teixidó, Cristina Linares   +6 more
wiley   +1 more source

Time or Space? Relative Importance of Geographic Distribution and Interannual Variation in Three Lineages of the Ascidian Pyura chilensis in the Southeast Pacific Coast

Frontiers in Marine Science, 2021
Spatial and temporal variation of environmental parameters can affect dispersal, recruitment and population persistence of marine benthic species. Studies including inter-annual comparisons of genetic structure often indicate high/moderate temporal ...
Pilar A. Haye, Pilar A. Haye, Xavier Turon, Nicolás I. Segovia, Nicolás I. Segovia, Nicolás I. Segovia   +5 more
doaj   +1 more source

Rotenone Induces Morphological Damage and Reduction in Catecholamine Levels in the Central Nervous System of the Ascidian Styela plicata

Environmental Toxicology, EarlyView.
ABSTRACT Ascidians are invertebrates that occupy a key phylogenetic position as a sister group of the vertebrates. The organization of their central nervous system (CNS), with cortex and medulla, indicates a plesiomorphic character of the gray and white matter of vertebrates, making this group of animals useful for studies of neurodegenerative events ...
Andressa de Abreu Mello, Carlos Augusto Borges de Andrade Gomes, Rafaela Rocha dos Santos, Cintia Monteiro de Barros, Silvana Allodi   +4 more
wiley   +1 more source

Understanding the Type 2 Immunity: An Evolving View Beyond Allergic Diseases

Allergy, EarlyView.
ABSTRACT Type 2 (T2) immunity is classically associated with defense against helminths and environmental threats, from a physiological perspective, and with allergies and eosinophilic inflammatory diseases, in a pathological sense. However, growing evidence reveals that T2 pathways also support other essential homeostatic functions, including tissue ...
Rodrigo Jiménez‐Saiz, Salvador Iborra, Carlos Blanco, Ruperto González‐Pérez, Emilio Nuñez‐Borque, Can Zeyneloglu, Huseyn Babayev, Ozlem Göksel, Tuncay Göksel, Musa Khaitov, Dmitry Kudlay, Yadong Gao, Mustafa Sevim, Marie‐Charlotte Brüggen, Oral Alpan, Ming Wang, Luo Zhang, María J. Torres, Mohamed Shamji, Mübeccel Akdis, Kari C. Nadeau, Ismail Ogulur, Cezmi A. Akdis   +22 more
wiley   +1 more source