Results 1 to 10 of about 99 (78)

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

Royal 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, Maria Byrne, Timothy D. O'Hara   +2 more
doaj   +2 more sources

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

EvoDevo
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, P. Peluso, D. R. Rank, D. S. Rokhsar, C. J. Lowe   +4 more
doaj   +2 more sources

Unravelling Hidden Trophic Interactions Among Sea Urchin Juveniles and Macroinvertebrates by DNA Amplification. [PDF]

Mol Ecol
ABSTRACT Rocky reefs may shift between two distinct stable states: productive algal forests, characterised by high abundance and biodiversity of macrofauna, and impoverished barrens, dominated by overgrazing sea urchins. Barren states may persist despite the recovery of adult sea urchin predators, suggesting additional stabilising mechanisms.
Sutera A, Bonaviri C, Trapani FD, Bella F, Macic V, Marković O, Hereu B, Michele R.   +7 more
europepmc   +2 more sources

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

FEBS 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, Zhou C, Tran NT, Sun Z, Wu J, Ge H, Lu Z, Zhong C, Zhu Z, Yang Q, Lin Q.   +10 more
europepmc   +2 more sources

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

Applied and Environmental Microbiology, 1990
Michael Lesser, Richard P Blakemore
exaly   +2 more sources

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

The 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, M. Canavesi, C. Ferrario, M. Sugni, F. Bonasoro   +4 more
doaj   +1 more source

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

Diversity 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, Rachel M. Fewster, Shane D. Lavery, Chris Burridge   +3 more
wiley   +1 more source

How does eDNA decay affect metabarcoding experiments?

Environmental 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

Sensitivity of a cold‐water coral reef to interannual variability in regional oceanography

Diversity and Distributions, Volume 27, Issue 9, Page 1719-1731, September 2021., 2021
Abstract Aim We assessed the effects of regional oceanographic shifts on the macrofaunal biodiversity and biogeography of cold‐water coral reefs (CWCRs). CWCRs are often hotspots of biodiversity and ecosystem services and are in the frontline of exposure to multiple human pressures and climate change.
Georgios Kazanidis, Lea‐Anne Henry, Johanne Vad, Clare Johnson, Laurence Helene De Clippele, J. Murray Roberts, Rafael Magris   +6 more
wiley   +1 more source

Identification of Fine‐Scale Marine Benthic Ecoclines by Multiple Parallel Ordination

Journal of Marine Sciences, Volume 2014, Issue 1, 2014., 2014
The species‐environment relationship is a fundamental structural property of natural ecosystems. Marine sedimentary macrofauna is known to be structured by a range of environmental variables; however, the mechanisms by which environmental variables covary to form complex‐gradients (i.e., groups of intercorrelated environmental variables), and how these
Thijs Christiaan van Son, Rune Halvorsen, Karl Norling, Torgeir Bakke, Maria Kaurin, Fredrik Melsom, Horst Felbeck   +6 more
wiley   +1 more source