Sea urchin embryos have been used for more than a century in the study of fertilization and early development. However, several of the species used, such as Strongylocentrotus purpuratus, have long generation times making them suboptimal for transgenerational studies.

中文翻译：

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Lytechinus pictus 从受精到性成熟的胚胎、幼虫和幼虫阶段。

一个多世纪以来，海胆胚胎一直用于受精和早期发育的研究。然而，使用的几种物种，例如Strongylocentrotus purpuratus，世代时间长，这使得它们不适合跨代研究。