Results 1 to 10 of about 9,528 (128)

Antero-posterior patterning in the brittle star Amphipholis squamata and the evolution of echinoderm body plans [PDF]

open access: yesEvoDevo
Although the adult pentaradial body plan of echinoderms evolved from a bilateral ancestor, identifying axial homologies between the morphologically divergent echinoderms and their bilaterian relatives has been an enduring problem in zoology.
L. Formery   +4 more
doaj   +5 more sources

Description of a Novel Symbiotic Bacterium from the Brittle Star, Amphipholis squamata [PDF]

open access: yesApplied and Environmental Microbiology, 1990
A gram-negative, marine, facultatively anaerobic bacterial isolate designated strain AS-1 was isolated from the subcuticular space of the brittle star, Amphipholis squamata. Its sensitivity to O/129 and novobiocin, overall morphology, and biochemical characteristics and the moles percent guanine-plus-cytosine ...
Michael Lesser, R P Blakemore
exaly   +9 more sources

A member of the Roseobacter clade, Octadecabacter sp., is the dominant symbiont in the brittle star Amphipholis squamata [PDF]

open access: yesFEMS Microbiology Ecology, 2018
Symbiotic associations with subcuticular bacteria (SCB) have been identified and studied in many echinoderms, including the SCB of the brooding brittle star, Amphipholis squamata. Previous studies on the SCB of A. squamata placed the isolated bacterium, designated as AS1, in the genus Vibrio (Gammaproteobacteria), but subsequent studies suggested that ...
Michael Lesser   +2 more
exaly   +4 more sources

Genetic variation in the brooding brittle-star: a global hybrid polyploid complex? [PDF]

open access: yesRoyal Society Open Science
The widespread and abundant brooding brittle-star (Amphipholis squamata) is a simultaneous hermaphrodite with a complex mitochondrial phylogeography of multiple divergent overlapping mtDNA lineages, high levels of inbreeding or clonality and unusual ...
Andrew F. Hugall   +2 more
doaj   +2 more sources

Localization of S1- and S2-like immunoreactivity in the nervous system of the brittle star Amphipholis squamata (Delle Chiaje 1828). [PDF]

open access: yesProc Biol Sci, 1997
The recent isolation and characterization of the SALMFamide neuropeptides S1 (GFNSALMFamide) and S2 (SGPYSFNSGLTFamide) from the sea stars Asterias rubens and Asterias forbesi have initiated numerous studies on their morphological localization and ...
de Bremaeker N   +4 more
europepmc   +2 more sources

Comparison of the complete mitochondrial genome of Phyllophorus liuwutiensis (Echinodermata: Holothuroidea: Phyllophoridae) to that of other sea cucumbers. [PDF]

open access: yesFEBS Open Bio, 2020
In this paper, we analyzed the mitochondrial genome of Phyllophorus liuwutiensis. We examined genome composition, base composition, codon usage of protein‐coding genes and gene arrangement. In addition, we compared the gene arrangements of six echinoderms, revealing that the gene order of P. liuwutiensis was a new arrangement.
Yang F   +10 more
europepmc   +2 more sources

Asterias squamata Delle Chiaje, 1828 (currently Amphipholis squamata; Echinodermata, Ophiuroidea): proposed conservation of the specific name

open access: yesBulletin of Zoological Nomenclature, 1987
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
exaly   +3 more sources

An evo-devo perspective on the regeneration patterns of continuous arm structures in stellate echinoderms

open access: yesThe European Zoological Journal, 2022
Regeneration is a post-embryonic developmental process common in Metazoa, which, despite obvious taxa-specific differences, can often share common principles and patterns.
A. Allievi   +4 more
doaj   +1 more source

Genogeographic clustering to identify cross‐species concordance of spatial genetic patterns

open access: yesDiversity and Distributions, Volume 28, Issue 4, Page 611-623, April 2022., 2022
Abstract Aim While in recent years, there have been considerable advances in discerning spatial genetic patterns within species, the task of identifying common patterns across species is still challenging. Approaches using new data from co‐sampled species permit rigorous statistical analysis but are often limited to a small number of species.
Vanessa Arranz   +3 more
wiley   +1 more source

How does eDNA decay affect metabarcoding experiments?

open access: yesEnvironmental DNA, Volume 4, Issue 1, Page 108-116, January 2022., 2022
Ecological interpretations of eDNA metabarcoding data require an explicit understanding of eDNA decay across different study systems and species. Here, we used eDNA metabarcoding of water samples to examine eDNA decay in a wide variety of temperate marine metazoan species. We found the most substantial effects of eDNA decay on diversity occurred within
Luke E. Holman, Yi Chng, Marc Rius
wiley   +1 more source

Home - About - Disclaimer - Privacy