Browsing Sars International Centre for Marine Molecular Biology by Issue Date
Now showing items 1-20 of 66
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Embryonic expression of priapulid Wnt genes
(Springer, 2019-07)Posterior elongation of the developing embryo is a common feature of animal development. One group of genes that is involved in posterior elongation is represented by the Wnt genes, secreted glycoprotein ligands that signal ...Journal article -
Pairwise comparisons across species are problematic when analyzing functional genomic data
(National Academy of Sciences, 2018-01-04)There is considerable interest in comparing functional genomic data across species. One goal of such work is to provide an integrated understanding of genome and phenotype evolution. Most comparative functional genomic ...Journal article -
Evolutionary and behavioral analysis of neuropeptides in bilaterians
(The University of Bergen, 2017-06-29)Neuropeptides are a diverse group of neurosecretory signaling molecules that are utilized by the nervous system of all bilaterian animals. These signaling molecules are involved in most physiological processes and can ...Doctoral thesis -
Cleavage modification did not alter blastomere fates during bryozoan evolution
(BioMed Central, 2017-04-28)Background: Stereotypic cleavage patterns play a crucial role in cell fate determination by precisely positioning early embryonic blastomeres. Although misplaced cell divisions can alter blastomere fates and cause embryonic ...Journal article -
Early evolution of radial glial cells in Bilateria
(The Royal Society Publishing, 2017)Bilaterians usually possess a central nervous system, composed of neurons and supportive cells called glial cells. Whereas neuronal cells are highly comparable in all these animals, glial cells apparently differ, and in ...Journal article -
An ancient FMRFamide-related peptide-receptor pair induces defense behavior in a brachiopod larva
(2017)Animals show different behaviors that can consist of various spatially or temporally separated sub-reactions. Even less complex organisms, like ciliated larvae that display important behaviors (e.g. metamorphosis, defense, ...Journal article -
A safer, urea-based in situ hybridization method improves detection of gene expression in diverse animal species
(2017)In situ hybridization is a widely employed technique allowing spatial visualization of gene expression in fixed specimens. It has proven to be essential to our understanding of biological processes, including developmental ...Journal article -
Increased taxon sampling reveals thousands of hidden orthologs in flatworms
(Cold Spring Harbor Laboratory Press, 2017)Gains and losses shape the gene complement of animal lineages and are a fundamental aspect of genomic evolution. Acquiring a comprehensive view of the evolution of gene repertoires is limited by the intrinsic limitations ...Journal article -
Embryonic chirality and the evolution of spiralian left - right asymmetries
(The Royal Society Publishing, 2016-12)The group Spiralia includes species with one of the most significant cases of left–right asymmetries in animals: the coiling of the shell of gastropod molluscs (snails). In this animal group, an early event of embryonic ...Journal article -
Molecular regionalization in the compact brain of the meiofaunal annelid Dinophilus gyrociliatus (Dinophilidae)
(BioMed Central, 2016-08-30)Background: Annelida is a morphologically diverse animal group that exhibits a remarkable variety in nervous system architecture (e.g., number and location of longitudinal cords, architecture of the brain). Despite this ...Journal article -
Expression of segment polarity genes in brachiopods supports a non-segmental ancestral role of engrailed for bilaterians
(Nature Publishing Group, 2016-08-26)The diverse and complex developmental mechanisms of segmentation have been more thoroughly studied in arthropods, vertebrates and annelids—distantly related animals considered to be segmented. Far less is known about the ...Journal article -
Developmental expression of “germline”- and “sex determination”-related genes in the ctenophore Mnemiopsis leidyi
(BioMed Central, 2016-08-02)Background: An essential developmental pathway in sexually reproducing animals is the specification of germ cells and the differentiation of mature gametes, sperm and oocytes. The “germline” genes vasa, nanos ...Journal article -
Xenacoelomorpha's significance for understanding bilaterian evolution
(Elsevier, 2016-08)The Xenacoelomorpha, with its phylogenetic position as sister group of the Nephrozoa (Protostomia + Deuterostomia), plays a key-role in understanding the evolution of bilaterian cell types and organ systems. Current studies ...Journal article -
Owenia fusiformis – a basally branching annelid suitable for studying ancestral features of annelid neural development
(BioMed Central, 2016-06-16)Background Comparative investigations on bilaterian neurogenesis shed light on conserved developmental mechanisms across taxa. With respect to annelids, most studies focus on taxa deeply nested within the annelid tree, ...Journal article -
Glypican1/2/4/6 and sulfated glycosaminoglycans regulate the patterning of the primary body axis in the cnidarian Nematostella vectensis
(Elsevier, 2016-06)Glypicans are members of the heparan sulfate (HS) subfamily of proteoglycans that can function in cell adhesion, cell crosstalk and as modulators of the major developmental signalling pathways in bilaterians. The evolutionary ...Journal article -
Development of the aboral domain in Nematostella requires β-catenin and the opposing activities of Six3/6 and Frizzled5/8
(The Company of Biologists, 2016-03)The development of the oral pole in cnidarians and the posterior pole in bilaterians is regulated by canonical Wnt signaling, whereas a set of transcription factors, including Six3/6 and FoxQ2, controls aboral development ...Journal article -
The larval nervous system of the penis worm Priapulus caudatus (Ecdysozoa)
(The Royal Society Publishing, 2016-01)The origin and extreme diversification of the animal nervous system is a central question in biology. While most of the attention has traditionally been paid to those lineages with highly elaborated nervous systems (e.g. ...Journal article -
Regulatory RNA at the root of animals: dynamic expression of developmental lincRNAs in the calcisponge Sycon ciliatum
(The Royal Society Publishing, 2015-12-23)Long non-coding RNAs (lncRNAs) play important regulatory roles during animal development, and it has been hypothesized that an RNA-based gene regulation was important for the evolution of developmental complexity in ...Journal article -
Posterior eyespots in larval chitons have a molecular identity similar to anterior cerebral eyes in other bilaterians
(BioMed Central, 2015-12-22)Background: Development of cerebral eyes is generally based on fine-tuned networks and closely intertwined with the formation of brain and head. Consistently and best studied in insects and vertebrates, many signaling ...Journal article -
Evolution of eumetazoan nervous systems: Insights from cnidarians
(Royal Society, 2015-12-19)Cnidarians, the sister group to bilaterians, have a simple diffuse nervous system. This morphological simplicity and their phylogenetic position make them a crucial group in the study of the evolution of the nervous system. ...Journal article
