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The innate immune repertoire in Cnidaria - ancestral complexity and stochastic gene loss
TLDR
Consideration of these patterns of gene distribution underscores the likely significance of gene loss during animal evolution whilst indicating ancient origins for many components of the vertebrate innate immune system.
View on Springer
Isolation of planarian X‐ray‐sensitive stem cells by fluorescence‐activated cell sorting
TLDR
A new method to isolate the planarian adult stem cells as X‐ray‐sensitive cell populations by fluorescence‐activated cell sorting (FACS) is described, which may provide a key tool for advancing the understanding of the stem cell system in planarians.
View on Wiley
Expression of vasa(vas)-related genes in germline cells and totipotent somatic stem cells of planarians.
TLDR
Results suggest that the product of DjvlgA may be a component of the chromatoid body and may be involved in the totipotency of the neoblast.
View on PubMed
Identification of a photoreceptor cell-specific nuclear receptor.
TLDR
The identification of a human nuclear receptor that reveals a unique proximal box (CNGCSG) in the DNA-binding domain suggests the requirement for this type of P box in the genetic cascades mediated by nuclear receptors in a wide variety of animal species.
View on PubMed
Distinct structural domains in the planarian brain defined by the expression of evolutionarily conserved homeobox genes
TLDR
The findings suggest that the planarian brain is composed of structurally distinct and functionally diverse domains which are defined by the discrete expression of the three evolutionarily conserved homeobox genes.
View on Springer
Structure of the Planarian Central Nervous System (CNS) Revealed by Neuronal Cell Markers
TLDR
The gross structure of the planarian CNS along the anterior-posterior (A–P) axis is strikingly similar to the distribution pattern of the “primary” neurons of vertebrate embryos which differentiate at the neural plate stage to provide a fundamental nervous system, although the vertebrate CNS is located on the dorsal side.
View on BioOne
Evidence for different origin of sex chromosomes in snakes, birds, and mammals and step-wise differentiation of snake sex chromosomes
TLDR
The differentiation of sex chromosomes was probably initiated from the distal region on the short arm of the protosex chromosome of the common ancestor, and then deletion and heterochromatization progressed on the sex-specific chromosome from the phylogenetically primitive boids to the more advanced viperids.
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Planarian Hedgehog/Patched establishes anterior–posterior polarity by regulating Wnt signaling
TLDR
It is proposed that Hh signals direct head or tail regeneration according to the AP polarity, which is established by Hh signaling activity along the body's preexisting nervous system.
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Seasonal Change in Bacterial Flora and Biomass in Mountain Snow from the Tateyama Mountains, Japan, Analyzed by 16S rRNA Gene Sequencing and Real-Time PCR
TLDR
The differences in development observed among these bacterial species suggest that their growth was promoted by different nutrients and/or environmental conditions in theSnow biota that are distributed in snow and ice environments in various parts of the world.
View on ASMUSA
FGFR-related gene nou-darake restricts brain tissues to the head region of planarians
TLDR
The identification and characterization of nou-darake (ndk), a gene encoding a fibroblast growth factor receptor (FGFR)-like molecule specifically expressed in the head region of the planarian Dugesia japonica, and the data suggest that ndk may modulate FGF signalling in stem cells to restrict brain tissues to theHead region of planarians.
View on Nature
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