RRC ID 31700
Author Kawaguchi A, Utsumi N, Morita M, Ohya A, Wada S.
Title Application of the cis-regulatory region of a heat-shock protein 70 gene to heat-inducible gene expression in the ascidian Ciona intestinalis.
Journal Genesis
Abstract Temporally controlled induction of gene expression is a useful technique for analyzing gene function. To make such a technique possible in Ciona intestinalis embryos, we employed the cis-regulatory region of the heat-shock protein 70 (HSP70) gene Ci-HSPA1/6/7-like for heat-inducible gene expression in C. intestinalis embryos. We showed that Ci-HSPA1/6/7-like becomes heat shock-inducible by the 32-cell stage during embryogenesis. The 5'-upstream region of Ci-HSPA1/6/7-like, which contains heat-shock elements indispensable for heat-inducible gene expression, induces the heat shock-dependent expression of a reporter gene in the whole embryo from the 32-cell to the middle gastrula stages and in progressively restricted areas of embryos in subsequent stages. We assessed the effects of heat-shock treatments in different conditions on the normality of embryos and induction of transgene expression. We evaluated the usefulness of this technique through overexpression experiments on the well-characterized, developmentally relevant gene, Ci-Bra, and showed that this technique is applicable for inferring the gene function in C. intestinalis.
Volume 53(1)
Pages 170-82
Published 2015-1
DOI 10.1002/dvg.22834
PMID 25366274
MeSH Animals Ciona intestinalis / embryology* Ciona intestinalis / genetics* Gene Expression Regulation, Developmental* Genes, Reporter HSP70 Heat-Shock Proteins / genetics* Heat-Shock Response Hot Temperature Regulatory Sequences, Nucleic Acid*
IF 2.667
Times Cited 0
C.intestinalis / (O.japonicus) Wild C. int