title: Pleiotropic developmental expression of HasPOU-III, a class III POU gene, in the gastropod Haliotis asinina.
abstract: HasPOU-III is expressed in multiple cell types during the first 3 days of development of the gastropod Haliotis asinina. HasPOU-III expression begins in two bilaterally symmetrical sets of cells on the ventral ectodermal surface of the trochophore larva; one set are putative foot mucous cells. After torsion, HasPOU-III transcripts transiently appear in the developing ganglia of the central nervous system. At the end of larval morphogenesis, HasPOU-III expression is initiated in dorsoposterior cells of the visceral mass, in the posterior cells of the statocyst and in the developing radular sac. These expression patterns in Haliotis, a spiralian lophotrochozoan, are similar to POU Class III genes in other bilaterians where expression occurs in secretory cells and the developing nervous system.
authors.affiliation: Department of Zoology and Entomology, University of Queensland, Brisbane, Queensland 4072, Australia.
authors.forename: Elizabeth K
authors.initials: EK
authors.lastname: O'Brien
authors.forename: Bernard M
authors.initials: BM
authors.lastname: Degnan
mesh_terms: D000818:Animals; D002490:Central Nervous System / Q000196:embryology*; D018507:Gene Expression Regulation, Developmental; D017403:In Situ Hybridization; D008974:Mollusca; D020133:Reverse Transcriptase Polymerase Chain Reaction; D013997:Time Factors; D014157:Transcription Factors / Q000096:biosynthesis* / Q000737:chemistry / Q000235:genetics*
chemical_list: D014157:Transcription Factors