We report recent example studies on neural crest, muscle and the acquisition of jaws, where important technical advancements in lamprey developmental biology have been made (morpholino injections, protein-soaked bead applications or even the first transgenesis trials). We describe progress in the ...
The vertebrate brain emerged more than ~500 million years ago in common evolutionary ancestors. To systematically trace its cellular and molecular origins, we established a spatially resolved cell type atlas of the entire brain of the sea lamprey—a jawl
Lampreys, one of two living lineages of jawless vertebrates, are always intriguing for their feeding behavior via the toothed suctorial disc and life cycle comprising the ammocoete, metamorphic, and adult stages. However, they left a meager fossil record, and their evolutionary history remains el...
In the present study, we examine whether the pallium in lamprey is the evolutionary “ancestor” of the mammalian cortex that directly controls the motor output repertoire. Stimulation of defined pallial sites elicits specific motor patterns including eye and orientation of the body mediated by glutam...
Although it is the sister group of craniates, Haikouella is skull-less and lacks an ear, but it does have neural-crest derivatives in its branchial ... J Mallatt,Jun‐yuan Chen - 《Journal of Morphology》 被引量: 379发表: 2003年 The lamprey in evolutionary studies We report recent exam...
Its evolutionary origin remains elusive, especially with regard to the ancestral state of its architecture as well as the origin of telencephalon-specific neuron subtypes. Cyclostomes (lampreys and hagfish), the sister group of the gnathostomes (jawed vertebrates), serve as valuable models for ...
However, given the lack of strong resolution in the trees, the major changes in evolutionary rates like the one in vertebrates, and the extreme propensity of the AANAT family for gene loss, scenarios that involve unusual routes of horizontal transfer should be addressed with much caution. ...
Many phylogenetic trees have been shown as models of the evolutionary relationship among species. Phylogenetic trees originated with Charles Darwin, who sketched the first phylogenetic tree in 1837 (Figure 11a), which served as a pattern for subsequent studies for more than a century. The concept ...
The subthalamic nucleus (STN) is part of the extended basal ganglia and is a highly evolutionary conserved brain area identified in lampreys, rodents, cats, and primates1. The STN was first described in humans by French neurologist Jules Bernard Luys in 1865; with early literature references to...
overarching examination of the chemoreceptor gene repertoire exists across vertebrates, which is largely due to the sheer size of some of the chemoreceptor gene families and the application of different gene mining methodologies in previous studies, hampering comparisons between species and evolutionary ...