Neurogenesis During Brittle Star Arm Regeneration Is Characterised by a Conserved Set of Key Developmental Genes
Overview
Authors
Affiliations
Neural regeneration is very limited in humans but extremely efficient in echinoderms. The brittle star can regenerate both components of its central nervous system as well as the peripheral system, and understanding the molecular mechanisms underlying this ability is key for evolutionary comparisons not only within the echinoderm group, but also wider within deuterostomes. Here we characterise the neural regeneration of this brittle star using a combination of immunohistochemistry, in situ hybridization and Nanostring nCounter to determine the spatial and temporal expression of evolutionary conserved neural genes. We find that key genes crucial for the embryonic development of the nervous system in sea urchins and other animals are also expressed in the regenerating nervous system of the adult brittle star in a hierarchic and spatio-temporally restricted manner.
The brittle star genome illuminates the genetic basis of animal appendage regeneration.
Parey E, Ortega-Martinez O, Delroisse J, Piovani L, Czarkwiani A, Dylus D Nat Ecol Evol. 2024; 8(8):1505-1521.
PMID: 39030276 PMC: 11310086. DOI: 10.1038/s41559-024-02456-y.
Chromosome-level genome assembly and annotation of the cold-water species Ophiura sarsii.
Han C, Zhang Q, Li Y, Sun Y, Dong Y, Ge M Sci Data. 2024; 11(1):560.
PMID: 38816401 PMC: 11139871. DOI: 10.1038/s41597-024-03412-y.
Turner R Integr Org Biol. 2024; 6(1):obae005.
PMID: 38558855 PMC: 10980344. DOI: 10.1093/iob/obae005.
Echinobase: a resource to support the echinoderm research community.
Telmer C, Karimi K, Chess M, Agalakov S, Arshinoff B, Lotay V Genetics. 2024; 227(1).
PMID: 38262680 PMC: 11075573. DOI: 10.1093/genetics/iyae002.