全基因组识别和时空表达分析皮动物中的卡德林超级家族成员
Macie M Chess1, William Douglas1, Josiah Saunders1
1Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA, 15213, USA.
EvoDevo
|December 21, 2023
概括
乙烯皮干蛋白类似于古代的双边形式,而不是现代的脊椎动物,这表明了体体的早期创新. 这些阴蛋白可能调节胚胎发育,类似于平面细胞极性通路蛋白.
科学领域:
- 发展生物学 发展生物学
- 进化生物学 进化生物学
- 分子生物学分子生物学
背景情况:
- 卡德林是元动物发育中的重要依赖性细胞粘附蛋白.
- 皮动物,作为基底的双体,为双边进化提供了洞察力.
- 之前的研究仅描述了一种皮干素,即G-干素.
研究的目的:
- 通过植物遗传学分析来表征皮干.
- 为了检查在海刺发育过程中卡德林基因的时空表达.
主要方法:
- 在多种皮动物物种中进行了全系遗传学分析.
- 在 *Strongylocentrotus purpuratus* 胚胎中对卡德林基因的时空表达模式分析.
主要成果:
- 鉴定了十种尖体干蛋白,包括乳头体特异性和尖体特异性类型.
- 观察到 catenin 结合域中的 deuteroostome 特定的创新.
- 乙皮干蛋白缺乏脊椎动物特有的特征,但包括原生体共享的蛋白质.
结论:
- 皮干蛋白与古老的双边形式相似,早于原始体和双质体.
- 双胞胎体表现出与卡德林相关的创新.
- 皮卡德林可能调节胚胎上皮和器官发育.
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