Marine Invertebrate Physiology and Ecology

Organisms associated with siphonophores revealed by short-read whole-genome sequencing

The paper analyzes DNA captured during siphonophore genome sequencing to identify associated organisms, revealing bacterial and eukaryotic diversity.

Convergent evolution of animal photosymbiosis through co-option of ancestral endodermal programs

This study shows that photosymbiosis in different animals uses ancestral endodermal programs and lineage-specific innovations, revealing a general cellular principle for complex symbiosis evolution.

Minicollagen expression dynamics reveal a transcriptional program for cnidogenesis in the sea anemone Nematostella vectensis

The paper identifies gene expression patterns in cnidocytes and spirocytes of Nematostella vectensis, revealing specialized transcriptional programs for cnidogenesis.

CnidoSite: A Multi-Omics Database for Cnidarians

CnidoSite provides a centralized multi-omics database for cnidarians, integrating genomic, transcriptomic, proteomic, and phenotypic data to study thermal tolerance and environmental adaptation.

Repeated coastal observations and molecular confirmation of Alatina grandis (Cubozoa: Alatinidae) in the Gulf of Aqaba, Red Sea

The paper confirms the presence of Alatina grandis in the Gulf of Aqaba, Red Sea, through repeated observations and molecular analysis.

Seasonal temperature extremes drive shifts in reproductive strategy in Cassiopea xamachana

This study shows that seasonal temperature extremes influence reproductive strategies in Cassiopea xamachana polyps, with warmer temperatures promoting strobilation but reducing ephyra fitness.

From promiscuity to specialization: The origin of cholinergic and monoaminergic signaling is pre-bilaterian

This study shows that cholinergic and monoaminergic signaling originated before Bilateria, using a combination of metabolomics, phylogenetics, and single-cell analysis.

Revisiting Hydractiniidae (Hydrozoa): Mitogenomic Insights into the Diversity, Systematics and Life-Cycle Evolution of North Atlantic and Arctic Species

This study uses mitogenomic and morphological data to reassess hydractiniid diversity, species boundaries, and life-cycle evolution in North Atlantic and Arctic species.

Precocious reproduction in the ctenophore Mnemiopsis leidyi is modulated by conspecific density and food availability

This study investigates how conspecific density and food availability influence precocious reproduction in Mnemiopsis leidyi larvae, showing density has the strongest effect.

An Ancient, Structurally Conserved Allorecognition Gene Complex Predates the Divergence of Major Cnidarian Lineages

The paper identifies an ancient, structurally conserved allorecognition gene complex in cnidarians, showing homology to the MHC and structural similarity through protein prediction.

Aging disrupts tissue homeostasis and constrains blastema-mediated regeneration in the Cladonema medusa

This study shows that aging in Cladonema medusae impairs tissue homeostasis and blastema-mediated regeneration, highlighting shared constraints on regenerative systems across metazoans.

β-catenin Dynamics in Regenerating Hydra

This study tracks β-catenin localization during Hydra regeneration, showing its spatial dynamics correlate with head or foot formation in different tissue configurations.

Division of labor between ERK/MAPK and Notch signaling in regulating distinct proliferative populations during jellyfish tentacle regeneration

The paper investigates the role of ERK/MAPK and Notch signaling in regulating distinct proliferative populations during jellyfish tentacle regeneration, finding ERK/MAPK promotes RSPC proliferation while Notch controls RHSC differentiation and proliferation balance.

Evolutionary Diversification of Nitric Oxide Signaling Components Across Metazoa: A Comparative Phylogenomic Analysis

The paper traces the evolutionary history of nitric oxide signaling components across metazoan species using phylogenomic analysis, revealing conserved and divergent patterns in gene family evolution.

Evolutionary patterns and repeated adaptive strategies of deep-sea anemones

This study analyzes genomes and transcriptomes of deep-sea anemones to reveal evolutionary patterns and adaptive strategies, finding repeated gene loss and molecular innovations in deep-sea species.

Dual origins for neural cells during development of the Clytia planula larva

The paper identifies two distinct origins for neural cells in Clytia planula larva development: one from Piwi/Nanos-expressing interstitial cells and another from ectodermal delamination during gastrulation.

Glutamatergic system in the pelagic tunicates

This study identifies glutamatergic elements in the neural system of the pelagic tunicate Doliolum sp., suggesting glutamatergic systems originated in the common ancestor of tunicates and vertebrates.

Comparative analysis of the neural and muscle systems in the subumbrella of hydrozoan jellyfish.

This study compares the neural and muscle systems in the subumbrella of 14 hydrozoan jellyfish species, finding a strong correlation between subumbrella neural networks and smooth radial muscles.

Glutamatergic systems in Hydrozoa (Cnidaria)

This study identifies glutamate-immunoreactive cells in eight hydrozoan species, revealing diverse glutamatergic systems and suggesting independent recruitment of glutamate and GABA as neurotransmitters.

Can an original be found? Mitochondrial species identity does not predict nuclear genome similarity in the photosymbiotic jellyfish Cassiopea andromeda and C. xamachana

The study finds that mitochondrial species identity in Cassiopea jellyfish does not predict nuclear genome similarity, suggesting hybridization and geographic mixing rather than strict species boundaries.

Comparative genomics reveals signatures of distinct metabolic strategies and gene loss associated with Hydra immortality

The paper compares the genomes of two Hydra species, finding that the immortal species lacks anti-aging genes and has a distinct metabolic signature.

Hidden Dynamical Canalization at the Onset of Hydra Morphogenesis

The paper analyzes Hydra morphogenesis to show that shape fluctuations become more concentrated over time, indicating dynamical canalization linked to spatial calcium heterogeneity.

Combination of indomethacin and temperature produces reliable strobilation in Cassiopea xamachana but batch effects create high variability in ephyra outcomes

This study examines the combined effect of indomethacin and temperature on ephyra production in Cassiopea xamachana, finding temperature is a stronger predictor than indomethacin, with batch effects causing variability.

Regression of juvenile tentacles is driven by loss of cell proliferation in Haliclystus sanjuanensis, a cnidarian with limited metamorphosis

The paper shows that loss of cell proliferation in primary tentacles drives their regression in H. sanjuanensis, while proliferative cells are gained in developing secondary tentacles and anchors, indicating a shift from juvenile to adult tissue investment.

Developmentally timed sensory integration enables efficient larval dispersal

This study shows that Nematostella vectensis larvae use a developing sensory-motor system to control movement and achieve efficient dispersal.

Glutamatergic systems in ctenophores

This study identifies glutamate-immunoreactive neurons and muscle fibers in ctenophores, revealing species-specific glutamate expression patterns linked to neural function and energy demands.

Neuromuscular Architecture of the Siphonophore Colony

The paper maps the neural architecture of the siphonophore colony using immunohistochemical markers to reveal neuroanatomical interactions and subpopulations across different zooid classes.

Integrative genomics of the siphonophore Physalia utriculus reveals the regulatory logic of colonial division of labour and the molecular basis of venom activity

This study presents a multi-omic atlas of the siphonophore Physalia utriculus, revealing the regulatory mechanisms of colonial division of labour and the molecular basis of venom activity.

Molecular drivers of mutualistic association between anemone and anemonefish

This study identifies molecular mechanisms underlying the mutualistic relationship between anemone and anemonefish by analyzing transcriptional changes after association.

Adaptive molecular convergence is pervasive across deep time and largely decoupled from phenotypic convergence

The paper shows adaptive molecular convergence is common across deep time but not linked to phenotypic convergence.