Dynamic expression of the LIM-homeodomain gene Lhx15 through larval brain development of the sea lamprey (Petromyzon marinus).
LIM-homeodomain genes encode a family of transcription factors with highly conserved roles in the patterning and regionalisation of the vertebrate brain. The expression of one of those genes, Lhx15, in the embryonic lamprey brain, characterises precise functional subdivisions. In order to analyse the non-embryonic development of the lamprey brain, we chose this gene to perform in situ hybridisations in Petromyzon marinus larvae of different ages. We demonstrate the usefulness of Lhx15 to follow the development and morphogenesis of brain structures and show the dynamical expression of this gene through time. Furthermore, we provide evidence for the evolutionary conservation of the expression of this gene in the spinal cord, notochord and urogenital system.
Osório
Joana
J
UPR 2197 Développement, Evolution, Plasticité du Système Nerveux, Institut de Neurobiologie Alfred Fessard, C.N.R.S., Avenue de la Terrasse, 91198 Gif-sur-Yvette cedex, France.
Megías
Manuel
M
Pombal
Manuel A
MA
Rétaux
Sylvie
S
D000818:Animals; D001921:Brain / Q000196:embryology* / Q000378:metabolism; D017124:Conserved Sequence; D004625:Embryo, Nonmammalian; D020869:Gene Expression Profiling; D018398:Homeodomain Proteins / Q000378:metabolism*; D007798:Lampreys / Q000196:embryology / Q000378:metabolism; D009672:Notochord / Q000378:metabolism; D048428:Petromyzon / Q000196:embryology* / Q000378:metabolism*; D017434:Protein Structure, Tertiary; D012249:Rhombencephalon / Q000196:embryology / Q000378:metabolism; D013116:Spinal Cord / Q000196:embryology / Q000378:metabolism; D014018:Tissue Distribution
D018398:Homeodomain Proteins