Expression of hedgehog genes in Ciona intestinalis embryos

被引：52

作者：

Takatori, N ^{[1
]}

Satou, Y ^{[1
]}

Satoh, N ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Sci, Dept Zool, Sakyo Ku, Kyoto 6068502, Japan

来源：

MECHANISMS OF DEVELOPMENT | 2002年 / 116卷 / 1-2期

关键词：

Ciona intestinalis; hedgehog genes; maternally expressed Ci-hh1; zygotically expressed Ci-hh2; ventral nerve cord cells;

D O I：

10.1016/S0925-4773(02)00150-8

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The configuration of the ascidian tadpole larva represents the most simplified and primitive chordate body plan. The present study revealed that Ciona intestinalis contains two hedgehog genes (Ci-hh1 and Ci-hh2), which are likely to be independent duplicate genes in this animal and ancestral to the three types of hedgehog gene of vertebrates. Ci-hh1 was expressed maternally and its maternal transcript was distributed evenly in fertilized eggs and early embryos. Ci-hh2 was expressed zygotically in the tailbud embryo and its transcript was evident only in cells of the ventral nerve cord. The notochord cells did not express the hedgehog genes in Ciona embryos. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.

引用

页码：235 / 238

页数：4

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