A Gal4/UAS system for conditional transgene expression in rhombomere 4 of the zebrafish hindbrain

Seong Kyu Choe, Mako Nakamura, Franck Ladam, Letitiah Etheridge, Charles G. Sagerström

研究成果: ジャーナルへの寄稿記事

5 引用 (Scopus)

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Background: The zebrafish is well established as a model organism for the study of vertebrate embryogenesis, but transgenic lines enabling restricted gene expression are still lacking for many tissues. Results: We first generated the hoxb1a(β-globin):eGFPum8 line that expresses eGFP in hindbrain rhombomere 4 (r4), as well as in facial motor neurons migrating caudally from r4. Second, we generated the hoxb1a(β-globin) Gal4VP16um60 line to express the exogenous Gal4VP16 transcription factor in r4. Lastly, we prepared the UAS(β-actin):hoxa3aum61 line where the hoxa3a gene, which is normally expressed in r5 and r6, is under control of Gal4-regulated UAS elements. Crossing the hoxb1a(β-globin):Gal4VP16um60 line to the UAS(β-actin):hoxa3aum61 line drives robust hoxa3a expression in r4. We find that transgenic expression of hoxa3a in r4 does not affect hoxb1a expression, but has variable effects on migration of facial motorneurons and formation of Mauthner neurons. While cases of somatic transgene silencing have been reported in zebrafish, we have not observed such silencing to date, possibly because of our efforts to minimize repetitive sequences in the transgenic constructs. Conclusion: We have generated three transgenic lines that will be useful for future studies by permitting the labeling of r4-derived cells, as well as by enabling r4-specific expression of various transgenes.

元の言語英語
ページ(範囲)1125-1132
ページ数8
ジャーナルDevelopmental Dynamics
241
発行部数6
DOI
出版物ステータス出版済み - 1 1 2012

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Rhombencephalon
Globins
Zebrafish
Transgenes
Actins
Nucleic Acid Repetitive Sequences
Motor Neurons
Embryonic Development
Vertebrates
Transcription Factors
Gene Expression
Neurons
Genes

All Science Journal Classification (ASJC) codes

  • Developmental Biology

これを引用

A Gal4/UAS system for conditional transgene expression in rhombomere 4 of the zebrafish hindbrain. / Choe, Seong Kyu; Nakamura, Mako; Ladam, Franck; Etheridge, Letitiah; Sagerström, Charles G.

:: Developmental Dynamics, 巻 241, 番号 6, 01.01.2012, p. 1125-1132.

研究成果: ジャーナルへの寄稿記事

Choe, Seong Kyu ; Nakamura, Mako ; Ladam, Franck ; Etheridge, Letitiah ; Sagerström, Charles G. / A Gal4/UAS system for conditional transgene expression in rhombomere 4 of the zebrafish hindbrain. :: Developmental Dynamics. 2012 ; 巻 241, 番号 6. pp. 1125-1132.
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