An oligochaete homologue of the Brachyury gene is expressed transiently in the third quartette of micromeres

Kitakoshi, Tomohito; Shimizu, Takashi

An oligochaete homologue of the Brachyury gene is expressed transiently in the third quartette of micromeres

Kitakoshi, Tomohito; Shimizu, Takashi

Gene Expression Patterns, 2010, 10(6), 306-313

Permalink : https://hdl.handle.net/2115/43800

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アクセス権	open access
URI	https://hdl.handle.net/2115/43800
タイトル	An oligochaete homologue of the Brachyury gene is expressed transiently in the third quartette of micromeres
著者	著者名 Kitakoshi, Tomohito
著者	著者名 Shimizu, Takashi
言語	英語
キーワード	Brachyury
	Annelid
	Tubifex tubilex
	Micromeres
	Teloblasts
	Blastopore
	Direct development
発行日	2010-09
出版者	Elsevier B.V.
収録物名	Gene Expression Patterns
巻(号)	10(6)
ページ	306-313
抄録	We have isolated a Brachyury homologue (Ttu-Bra) from the oligochaete annelid Tubifex tubifex which displays a direct mode of development. Developmental RT-PCR analysis showed that Ttu-Bra transcripts are present in embryos at stages 9-11 and 16-17, but undetectable at the remaining embryonic stages. Whole-mount in situ hybridization demonstrated that Ttu-Bra is expressed transiently in the third quartette of micromeres, which are located at the prospective stomodaeum (at stages 9-11). The second burst of Ttu-Bra expression occurs at the posterior end of stage 16 embryo that undergoes body elongation. Ttu-Bra-expressing cells, which are organized in a circle at stage 16, become aggregated at the proctodaeum at stage 17. Consistent with the results of the RT-PCR analysis, there is no sign of Ttu-Bra-expressing cells in embryos that undergo gastrulation during stages 12 to 15.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	1567-133X
関連情報	PMID 20603182
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.gep.2010.07.001