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Nearly Complete 28S rRNA Gene Sequences Confirm New Hypotheses of Sponge Evolution 16 Aug 2013 | 04:56 pm
The highly collaborative research sponsored by the NSF-funded Assembling the Porifera Tree of Life (PorToL) project is providing insights into some of the most difficult questions in metazoan systemat...
Phylogeny and Systematics of Demospongiae in Light of New Small-Subunit Ribosomal DNA (18S) Sequences 16 Aug 2013 | 04:56 pm
The most diverse and species-rich class of the phylum Porifera is Demospongiae. In recent years, the systematics of this clade, which contains more than 7000 species, has developed rapidly in light of...
The Integrative Taxonomic Approach Applied to Porifera: A Case Study of the Homoscleromorpha 16 Aug 2013 | 04:56 pm
The two main scientific tasks of taxonomy are species’ delineation and classification. These two tasks are often treated differently, with classification accomplished by newly-developed phylogenetic m...
Molecular Phylogenies Support Homoplasy of Multiple Morphological Characters Used in the Taxonomy of Heteroscleromorpha (Porifera: Demospongiae) 16 Aug 2013 | 04:56 pm
Sponge classification has long been based mainly on morphocladistic analyses but is now being greatly challenged by more than 12 years of accumulated analyses of molecular data analyses. The current s...
A Molecular Phylogeny for the Order Clathrinida Rekindles and Refines Haeckel's Taxonomic Proposal for Calcareous Sponges 16 Aug 2013 | 04:56 pm
Most biological groups are still longing for a phylogenetically sound taxonomic organization. In this article, we aimed to verify the consistency of morphological characters in calcarean sponges of th...
Mycalina: Another Crack in the Poecilosclerida Framework 16 Aug 2013 | 04:56 pm
This is the first phylogenetic analysis integrating both morphological and molecular data of the sponge suborder Mycalina (Poecilosclerida), which was erected in 1994. A cladistic analysis of morpholo...
Managing and Sharing the Escalating Number of Sponge "Unknowns": The SpongeMaps Project 16 Aug 2013 | 04:56 pm
Contemporary collections of sponges in the Indo-west Pacific have escalated substantially due to pharmaceutical discovery, national bioregional planning, and compliance with international conventions ...
Phylogenetic Novelties and Geographic Anomalies among Tropical Verongida 16 Aug 2013 | 04:56 pm
Exploring marine sponges from shallow tropical reefs of the Caribbean and western Central Pacific, as part of large biodiversity (Moorea Biocode Project) and evolutionary (Porifera Tree of Life) resea...
The Twin-Arginine Subunit C in Oscarella: Origin, Evolution, and Potential Functional Significance 16 Aug 2013 | 04:56 pm
The twin-arginine translocation (Tat) pathway is a protein transport system that moves completely folded proteins across lipid membranes. Genes encoding components of the pathway have been found in th...
Novel Scenarios of Early Animal Evolution--Is It Time to Rewrite Textbooks? 16 Aug 2013 | 04:56 pm
Understanding how important phenotypic, developmental, and genomic features of animals originated and evolved is essential for many fields of biological research, but such understanding depends on rob...
