Results 81 to 90 of about 19,199 (194)

Putting Structural Variants Into Practice: The Role of Chromosomal Inversions in the Management of Marine Environments

open access: yesMolecular Ecology, Volume 34, Issue 23, December 2025.
ABSTRACT Major threats to marine species and ecosystems include overfishing, invasive species, pollution and climate change. The changing climate not only imposes direct threats through the impacts of severe marine heatwaves, cyclones and ocean acidification but also complicates fisheries and invasive species management by driving species range shifts.
Nadja M. Schneller   +4 more
wiley   +1 more source

The Acrosome Reaction in Ciona intestinalis (Ascidia, Tunicata) [PDF]

open access: yesDevelopment, Growth & Differentiation, 1990
An acrosome reaction occurs by fusion between the acrosomal outer membrane and the plasmalemma enclosing the acrosome in Ciona intestinalis spermatozoa. The fusion seems to proceed along the peripheral margin of the acrosome, which causes vesiculation. The membrane bound vesicle formed by this process is probably shed by the sperm.
openaire   +2 more sources

Methylome Profiling of a Deuterostome Invertebrate Using Oxford Nanopore Technology (ONT)

open access: yesMolecular Ecology Resources, Volume 25, Issue 8, November 2025.
ABSTRACT DNA methylation is crucial for genome regulation and provides key insights into the interaction between genetics and environmental factors, offering valuable perspectives for ecological research. However, knowledge of DNA methylation patterns in nonmodel invertebrates remains limited.
Sarah Lok Ting Kwong   +4 more
wiley   +1 more source

A simple inland culture system provides insights into ascidian post-embryonic developmental physiology

open access: yesOpen Biology
Maintenance and breeding of experimental organisms are fundamental to life sciences, but both initial and running costs, and hands-on zootechnical demands can be challenging for many laboratories. Here, we first aimed to further develop a simple protocol
Birthe Thuesen Mathiesen   +7 more
doaj   +1 more source

Mitogenomics reveals two cryptic species in Ciona intestinalis [PDF]

open access: yesTrends in Genetics, 2007
Individual mitochondrial genes or genomic features are commonly used as phylogenetic markers at many taxonomic levels. We used a mitogenomics approach to demonstrate the existence of two cryptic species in the ascidian Ciona intestinalis, a model chordate whose status as a single species has recently been questioned.
F. Iannelli   +3 more
openaire   +4 more sources

Complementary Roles of DNA Methylation and miRNA in Regulating Gene Expression Under Environmental Stress in Biological Invasions

open access: yesEvolutionary Applications, Volume 18, Issue 11, November 2025.
ABSTRACT Biological invasions significantly threaten global biodiversity and disrupt the stability of ecosystems worldwide. Effective responses to environmental stressors are crucial for invasion success; however, the underlying epigenetic regulatory mechanisms remain poorly understood, especially regarding the interplay among multiple regulatory ...
Weijie Yan   +3 more
wiley   +1 more source

Chitin protects the gut epithelial barrier in a protochordate model of DSS-induced colitis

open access: yesBiology Open, 2018
The gastrointestinal tract of Ciona intestinalis, a solitary tunicate that siphon-filters water, shares similarities with its mammalian counterpart.
Assunta Liberti   +8 more
doaj   +1 more source

Natural variation of model mutant phenotypes in Ciona intestinalis. [PDF]

open access: yesPLoS ONE, 2008
BACKGROUND: The study of ascidians (Chordata, Tunicata) has made a considerable contribution to our understanding of the origin and evolution of basal chordates.
Paolo Sordino   +22 more
doaj   +1 more source

Culturing the solitary ascidian Phallusia nigra in closed and open water systems for tropical environmental research

open access: yesLimnology and Oceanography: Methods, Volume 23, Issue 10, Page 700-714, October 2025.
Abstract Marine and coastal ecosystems have been undergoing dramatic shifts due to global environmental changes. The rise in seawater temperature, ocean acidification, hypoxia, eutrophication, and anthropogenic pollution severely affects marine organisms.
Serina Siew Chen Lee   +3 more
wiley   +1 more source

Genome-wide identification and characterization of transcription start sites and promoters in the tunicate Ciona intestinalis

open access: yesGenome Research, 2016
The tunicate Ciona intestinalis, an invertebrate chordate, has recently emerged as a powerful model organism for gene regulation analysis. However, few studies have been conducted to identify and characterize its transcription start sites (TSSs) and ...
Rui Yokomori   +5 more
semanticscholar   +1 more source

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