Barcoding Sponges: An Overview Based on Comprehensive Sampling
A DNA-barcoding workflow capable of processing potentially large sponge collections has been developed and is routinely used for the Sponge Barcoding Project with success, and common pitfalls inherent to the barcoding of sponges are discussed.
A revision of the genus Eugorgia Verrill, 1868 (Coelenterata: Octocorallia: Gorgoniidae)
This work states that Eugorgia ampla (Verrill, 1864) and aurantiaca (Horn, 1860) are recognized as new species of Gorgoniidae and this work aims to clarify their status and investigate their role in the food web.
The last common ancestor of animals lacked the HIF pathway and respired in low-oxygen environments
Sponges and ctenophores are likely sister to all remaining animal phyla, and the last common ancestor of extant animals likely lacked the HIF pathway, consistent with the predicted absence of HIF or any other HIF-like pathway.
The genome of the contractile demosponge Tethya wilhelma and the evolution of metazoan neural signalling pathways
Changes in gene content are consistent with the view that ctenophores and sponges are the earliest-branching metazoan lineages and provide additional support for the proposed clade of Placozoa/Cnidaria/Bilateria.
Phylogeny of Tetillidae (Porifera, Demospongiae, Spirophorida) based on three molecular markers.
Archaea dominate oxic subseafloor communities over multimillion-year time scales
This metabolic feature likely reduces energy loss and improves AOA fitness under energy-starved, oxic conditions, thereby allowing them to outcompete other taxa for millions of years.
Divergence times in demosponges (Porifera): first insights from new mitogenomes and the inclusion of fossils in a birth-death clock model
This study uses desma-bearing sponges, a diverse group of demosponges that form rigid skeletons and have a rich and continuous fossil record dating back to the Cambrian, to date the demosponge radiation and constrain the timing of key evolutionary events, like the transition from marine to freshwater habitats.
The Weedy Rice Complex in Costa Rica. I. Morphological Study of Relationships Between Commercial Rice Varieties, Wild Oryza Relatives and Weedy Types
- Griselda Arrieta-Espinoza, E. Sánchez, S. Vargas, J. Lobo, Tania Quesada, A. M. Espinoza
- BiologyGenetic Resources and Crop Evolution
- 1 August 2005
None of the morphotypes collected in Costa Rica clustered with the allotetraploids CCDD species or O. rufipogon, suggesting that hybridization could have taken place in the past between these species.
Linking Uncultivated Microbial Populations and Benthic Carbon Turnover by Using Quantitative Stable Isotope Probing
- Ö. Coskun, M. Pichler, S. Vargas, S. Gilder, W. Orsi
- Environmental ScienceApplied and Environmental Microbiology
- 6 July 2018
The study helps define the role of several poorly understood, uncultivated microbial groups in the turnover of benthic carbon derived from “dark” primary production and provides quantitative evidence for active heterotrophic and autotrophic metabolism ofSeveral poorly understood microbial groups, thus demonstrating their relevance for carbon turnover in benthi settings.