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Origin of animal multicellularity: precursors, causes, consequences—the choanoflagellate/sponge transition, neurogenesis and the Cambrian explosion
T Cavalier-Smith - … Transactions of the Royal Society B …, 2017 - royalsocietypublishing.org
Evolving multicellularity is easy, especially in phototrophs and osmotrophs whose multicells
feed like unicells. Evolving animals was much harder and unique; probably only one …
feed like unicells. Evolving animals was much harder and unique; probably only one …
Elements of a 'nervous system'in sponges
Genomic and transcriptomic analyses show that sponges possess a large repertoire of
genes associated with neuronal processes in other animals, but what is the evidence these …
genes associated with neuronal processes in other animals, but what is the evidence these …
Metazoan opsin evolution reveals a simple route to animal vision
All known visual pigments in Neuralia (Cnidaria, Ctenophora, and Bilateria) are composed
of an opsin (a seven-transmembrane G protein-coupled receptor), and a light-sensitive …
of an opsin (a seven-transmembrane G protein-coupled receptor), and a light-sensitive …
The last common ancestor of animals lacked the HIF pathway and respired in low-oxygen environments
Animals have a carefully orchestrated relationship with oxygen. When exposed to low
environmental oxygen concentrations, and during periods of increased energy expenditure …
environmental oxygen concentrations, and during periods of increased energy expenditure …
The diversity of eyes and vision
Every aspect of vision, from the opsin proteins to the eyes and the ways that they serve
animal behavior, is incredibly diverse. It is only with an evolutionary perspective that this …
animal behavior, is incredibly diverse. It is only with an evolutionary perspective that this …
Phylogenetic and functional classification of the photolyase/cryptochrome family
The photolyase/cryptochrome (PHR/CRY) family is a large group of proteins with similar
structure but very diverge functions such as DNA repair, circadian clock resetting and …
structure but very diverge functions such as DNA repair, circadian clock resetting and …
The dynamic evolutionary history of pancrustacean eyes and opsins
Abstract Pancrustacea (Hexapoda plus Crustacea) display an enormous diversity of eye
designs, including multiple types of compound eyes and single-chambered eyes, often with …
designs, including multiple types of compound eyes and single-chambered eyes, often with …
Melatonin signaling controls circadian swimming behavior in marine zooplankton
Melatonin, the" hormone of darkness," is a key regulator of vertebrate circadian physiology
and behavior. Despite its ubiquitous presence in Metazoa, the function of melatonin …
and behavior. Despite its ubiquitous presence in Metazoa, the function of melatonin …
Evolutionary origins of sensation in metazoans: functional evidence for a new sensory organ in sponges
Background One of the hallmarks of multicellular organisms is the ability of their cells to
trigger responses to the environment in a coordinated manner. In recent years primary cilia …
trigger responses to the environment in a coordinated manner. In recent years primary cilia …
Photobehaviours guided by simple photoreceptor systems
Light provides a widely abundant energy source and valuable sensory cue in nature. Most
animals exposed to light have photoreceptor cells and in addition to eyes, there are many …
animals exposed to light have photoreceptor cells and in addition to eyes, there are many …