Parallel evolution of amphioxus and vertebrate small-scale gene duplications [PDF]
Genome Biology, 2022 Background Amphioxus are non-vertebrate chordates characterized by a slow morphological and molecular evolution. They share the basic chordate body-plan and genome organization with vertebrates but lack their 2R whole-genome duplications and their ...
Marina Brasó-Vives +13 more
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First Investigation of Grass Carp Reovirus (GCRV) Infection in Amphioxus: Insights into Pathological Effects, Transmission, and Transcriptomic Responses [PDF]
VirusesAmphioxus belongs to the subphylum Cephalochordata and occupies a transitional position in evolution between invertebrates and vertebrates. Due to the lack of viruses suitable for immunostimulation in amphioxus, this study for the first time explored the
Jingyuan Lin +4 more
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The highly heterozygous European amphioxus (Branchiostoma lanceolatum) at the edge of panmixia. [PDF]
PLoS GeneticsAmphioxus (Cephalochordata) are small marine chordates that have broad ecological ranges, yet as adults form local settlements and exhibit limited mobility. Genomic surveys of two amphioxus species have suggested that they rank among the most genetically
Marina Brasó-Vives +5 more
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Cell type and regulatory analysis in amphioxus illuminates evolutionary origin of the vertebrate head [PDF]
Nature CommunicationsTo shed light on the enigmatic origin of the vertebrate head, our study employs an integrated approach that combines single-cell transcriptomics, perturbations in signaling pathways, and cis-regulatory analysis in amphioxus.
Anna Markos +8 more
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PLoS Biology, 2017 All vertebrate brains develop following a common Bauplan defined by anteroposterior (AP) and dorsoventral (DV) subdivisions, characterized by largely conserved differential expression of gene markers.
Ildikó Somorjai +2 more
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The DMRT gene family in amphioxus
Journal of Biomolecular Structure and Dynamics, 2012 Doublesex and Mab-3-related transcription factor (DMRT) gene family is widely known for its involvement in sex determination and/or differentiation among different phyla. In this study, we identify eight DMRT genes in the cephalochordate amphioxus, a protochordate holding a key phylogenetic position. The eight DMRTs can be divided into two groups based
Hongyan Li, Dongrui Ji
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Identification, Expression and Evolutional Analysis of Two cyp19-like Genes in Amphioxus [PDF]
AnimalsThe mechanism of sex determination and differentiation in animals remains a central focus of reproductive and developmental biology research, and the regulation of sex differentiation in amphioxus remains poorly understood.
Yajun Wang +4 more
doaj +2 more sources
Amphioxus as a model to study the evolution of development in chordates
eLife, 2023 Cephalochordates and tunicates represent the only two groups of invertebrate chordates, and extant cephalochordates – commonly known as amphioxus or lancelets – are considered the best proxy for the chordate ancestor, from which they split around 520 ...
Salvatore D'Aniello +2 more
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Frontiers in Endocrinology, 2022 The growth hormone/insulin-like growth factor (GH/IGF) system, also called the pituitary-liver axis, has a somatotrophic role in the body. Although the GH/IGF system has always been regarded as a vertebrate-specific endocrine system, its actual origin ...
Mengyang Li
doaj +1 more source
A snapshot of the population structure of Branchiostoma lanceolatum in the Racou beach, France, during its spawning season. [PDF]
PLoS ONE, 2011 A methodology for inducing spawning in captivity of the lancelet Branchiostoma lanceolatum has been developed recently with animals collected at the Racou beach, in the southern coast of France.
Yves Desdevises +3 more
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