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Resolving Difficult Phylogenetic Questions: Why More Sequences Are Not Enough
In the quest to reconstruct the Tree of Life, researchers have increasingly turned to phylogenomics, the inference of phylogenetic relationships using genome-scale data (Box 1). Mesmerized by theExpand
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Phylogenomics Revives Traditional Views on Deep Animal Relationships
The origin of many of the defining features of animal body plans, such as symmetry, nervous system, and the mesoderm, remains shrouded in mystery because of major uncertainty regarding the emergenceExpand
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Slow mitochondrial DNA sequence evolution in the Anthozoa (Cnidaria)
Mitochondrial genes have been used extensively in population genetic and phylogeographical analyses, in part due to a high rate of nucleotide substitution in animal mitochondrial DNA (mtDNA).Expand
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Improved Phylogenomic Taxon Sampling Noticeably Affects Nonbilaterian Relationships
Despite expanding data sets and advances in phylogenomic methods, deep-level metazoan relationships remain highly controversial. Recent phylogenomic analyses depart from classical concepts inExpand
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Oxygen isotope fractionation in marine aragonite of coralline sponges
Oxygen isotope values of the extant Caribbean coralline sponge Ceratoporella nicholsoni are compared with published temperatures and δ18O of water calculated from salinities. The measured values fromExpand
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Deep metazoan phylogeny: when different genes tell different stories.
Molecular phylogenetic analyses have produced a plethora of controversial hypotheses regarding the patterns of diversification of non-bilaterian animals. To unravel the causes for the patterns ofExpand
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Low variation in partial cytochrome oxidase subunit I (COI) mitochondrial sequences in the coralline demosponge Astrosclera willeyana across the Indo-Pacific
Partial sequences of the mitochondrial DNA (mtDNA) gene cytochrome oxidase subunit 1 (COI) were analysed from individuals of the coralline demosponge Astrosclera willeyana sensu lato out of tenExpand
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Calcium isotope fractionation in calcite and aragonite
Abstract Calcium isotope fractionation was measured on skeletal aragonite and calcite from different marine biota and on inorganic calcite. Precipitation temperatures ranged from 0 to 28°C. CalciumExpand
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A threat to coral reefs multiplied? Four species of crown-of-thorns starfish
In the face of ever-increasing threats to coral reef ecosystems, it is essential to understand the impact of natural predators in order to devise appropriate management strategies. DestructiveExpand
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Developmental expression of transcription factor genes in a demosponge: insights into the origin of metazoan multicellularity
SUMMARY Demosponges are considered part of the most basal evolutionary lineage in the animal kingdom. Although the sponge body plan fundamentally differs from that of other metazoans, theirExpand
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