Expression of a twist-related gene, Bbtwist, during the development of a lancelet species and its relation to cephalochordate anterior structures
文献类型：期刊论文
| 作者 | Yasui, K; Zhang, SC; Uemura, M; Aizawa, S; Ueki, T |
| 刊名 | DEVELOPMENTAL BIOLOGY
 |
| 出版日期 | 1998-03-01 |
| 卷号 | 195期号:1页码:49-59 |
| 关键词 | Branchiostoma-belcheri-tsingtauense Neural Crest Spatial Expression Drosophila-twist Mesodermal Cells Nervous-system Homeobox Gene Zygotic Gene T-gene Amphioxus |
| ISSN号 | 0012-1606 |
| 文献子类 | Article |
| 英文摘要 | Mesoderm formation plays a crucial role in the establishment of the chordate body plan. In this regard, lancelet embryos develop structures such as the anteriorly extended notochord and the lateral divertecula in their anterior body. To elucidate the developmental basis of these structures, we examined the expression pattern of a lancelet twist-related gene, Bbtwist, from the late gastrula to larval stages. In late-gastrula embryos, the transcripts of Bbtwist were detected in the presumptive first pair of somites and the middorsal wall of the primitive gut. The expression of Bbtwist was then upregulated in the lateral wall of somites and the notochord. At the late-neurula stage, it was also expressed in the anterior wall of the primitive gut, as well as in the evaginating lateral diverticula. No signal was detected in the left lateral diverticulum when it was separated from the gut, while in the right one, the gene was expressed later during the formation of the head coelom in knife-shaped larvae, and in the anterior part of the notochord in the same larvae. In 36-h larvae, only faint expression was detected in the differentiating notochordal and paraxial mesoderm in the caudal region. These expression patterns suggest that Bbtwist is involved in early differentiation of mesodermal subsets as seen in Drosophila and vertebrates. The expression in the anterior notochord may be related to its anterior expansion. The expression in the anterior wall of the primitive gut and its derivative, the lateral diverticula, suggests that lancelets share the capability to produce a mesodermal population from the tip of the primitive gut with nonchordate deuterostome embryos. (C) 1998 Academic Press.; Mesoderm formation plays a crucial role in the establishment of the chordate body plan. In this regard, lancelet embryos develop structures such as the anteriorly extended notochord and the lateral divertecula in their anterior body. To elucidate the developmental basis of these structures, we examined the expression pattern of a lancelet twist-related gene, Bbtwist, from the late gastrula to larval stages. In late-gastrula embryos, the transcripts of Bbtwist were detected in the presumptive first pair of somites and the middorsal wall of the primitive gut. The expression of Bbtwist was then upregulated in the lateral wall of somites and the notochord. At the late-neurula stage, it was also expressed in the anterior wall of the primitive gut, as well as in the evaginating lateral diverticula. No signal was detected in the left lateral diverticulum when it was separated from the gut, while in the right one, the gene was expressed later during the formation of the head coelom in knife-shaped larvae, and in the anterior part of the notochord in the same larvae. In 36-h larvae, only faint expression was detected in the differentiating notochordal and paraxial mesoderm in the caudal region. These expression patterns suggest that Bbtwist is involved in early differentiation of mesodermal subsets as seen in Drosophila and vertebrates. The expression in the anterior notochord may be related to its anterior expansion. The expression in the anterior wall of the primitive gut and its derivative, the lateral diverticula, suggests that lancelets share the capability to produce a mesodermal population from the tip of the primitive gut with nonchordate deuterostome embryos. (C) 1998 Academic Press. |
| 学科主题 | Developmental Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:000072641700005 |
| 公开日期 | 2010-12-22 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/3369]  |
| 专题 | 海洋研究所_实验海洋生物学重点实验室 |
| 作者单位 | 1.Kagoshima Univ, Dept Oral Anat 1, Sch Dent, Kagoshima 890, Japan 2.Acad Sinica, Inst Oceanol, Qingdao 266071, Peoples R China 3.Kumamoto Univ, Sch Med, Inst Mol Embryol & Genet, Dept Morphogenesis, Kumamoto 860, Japan |
| 推荐引用方式 GB/T 7714 | Yasui, K,Zhang, SC,Uemura, M,et al. Expression of a twist-related gene, Bbtwist, during the development of a lancelet species and its relation to cephalochordate anterior structures[J]. DEVELOPMENTAL BIOLOGY,1998,195(1):49-59. |
| APA | Yasui, K,Zhang, SC,Uemura, M,Aizawa, S,&Ueki, T.(1998).Expression of a twist-related gene, Bbtwist, during the development of a lancelet species and its relation to cephalochordate anterior structures.DEVELOPMENTAL BIOLOGY,195(1),49-59. |
| MLA | Yasui, K,et al."Expression of a twist-related gene, Bbtwist, during the development of a lancelet species and its relation to cephalochordate anterior structures".DEVELOPMENTAL BIOLOGY 195.1(1998):49-59. |
入库方式： OAI收割
来源：海洋研究所
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