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The Amphimedon queenslandica genome and the evolution of animal complexity
TLDR
Comparative analysis enabled by the sequencing of the sponge genome reveals genomic events linked to the origin and early evolution of animals, including the appearance, expansion and diversification of pan-metazoan transcription factor, signalling pathway and structural genes.
Guidelines for the use and interpretation of assays for monitoring autophagy (3rd edition)
TLDR
There continues to be confusion regarding acceptable methods to measure autophagy, especially in multicellular eukaryotes, so it is important to update guidelines for monitoring autophagic activity in different organisms.
Improved Phylogenomic Taxon Sampling Noticeably Affects Nonbilaterian Relationships
TLDR
This work recovers monophyletic Porifera as the sister group to all other Metazoa and suggests that the basal position of the fast-evolving Ctenophora proposed by Dunn et al. was due to LBA and that broad taxon sampling is of fundamental importance to metazoan phylogenomic analyses.
A rapidly evolving secretome builds and patterns a sea shell
TLDR
The composition of this novel mantle-specific secretome suggests that there are significant molecular differences in the ways in which gastropods synthesize their shells, and must contribute to the variety of adaptive architectures and colors found in mollusk shells.
Parallel evolution of nacre building gene sets in molluscs.
TLDR
Large-scale differences in genes expressed in nacre-forming cells of Pinctada and Haliotis are compatible with the hypothesis that gastropod and bivalve nacre is the result of convergent evolution.
Sponge Paleogenomics Reveals an Ancient Role for Carbonic Anhydrase in Skeletogenesis
TLDR
The coralline demosponge Astrosclera willeyana is used, a "living fossil" that has survived from the Mesozoic, to provide insight into the evolution of the ability to biocalcify, and it is shown that the α-CA family expanded from a single ancestral gene through several independent gene-duplication events in sponges and eumetazoans.
Correlating gene expression with larval competence, and the effect of age and parentage on metamorphosis in the tropical abalone Haliotis asinina
TLDR
Variation in the rate of development of the competent state has a genetic basis, and as a first step towards identifying the molecular basis to this variation, numerous genes that are differentially expressed later in larval development are identified using a differential display approach.
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