Comparison of the transcriptomes of two tardigrades with different hatching coordination.

Q2 Biochemistry, Genetics and Molecular Biology

BMC Developmental Biology Pub Date : 2019-12-09 DOI:10.1186/s12861-019-0205-9

Yuki Yoshida, Kenta Sugiura, Masaru Tomita, Midori Matsumoto, Kazuharu Arakawa

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引用次数: 11

Abstract

Background: Tardigrades are microscopic organisms, famous for their tolerance against extreme environments. The establishment of rearing systems of multiple species has allowed for comparison of tardigrade physiology, in particular in embryogenesis. Interestingly, in-lab cultures of limnic species showed smaller variation in hatching timing than terrestrial species, suggesting a hatching regulation mechanism acquired by adaptation to their habitat.

Results: To this end, we screened for coordinated gene expression during the development of two species of tardigrades, Hypsibius exemplaris and Ramazzottius varieornatus, and observed induction of the arthropod molting pathway. Exposure of ecdysteroids and juvenile hormone analog affected egg hatching but not embryonic development in only the limnic H. exemplaris.

Conclusion: These observations suggest a hatching regulation mechanism by the molting pathway in H. exemplaris.

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两种不同孵化配合的缓步动物转录组的比较。

背景：Tardigrades是一种微生物，以其对极端环境的耐受性而闻名。多个物种饲养系统的建立允许对缓步动物的生理学，特别是胚胎发生进行比较。有趣的是，与陆地物种相比，湖沼物种的实验室培养在孵化时间上表现出较小的变化，这表明孵化调节机制是通过适应栖息地获得的。结果：为此，我们筛选了两种缓步动物Hypsibius examplearis和Ramazzottius variornatus在发育过程中的协调基因表达，并观察了节肢动物蜕皮途径的诱导。蜕皮甾体和幼龄激素类似物的暴露仅影响鲎卵的孵化，但不影响胚胎发育。结论：这些观察结果表明，黄颡鱼通过蜕皮途径进行孵化调控。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

BMC Developmental Biology 生物-发育生物学

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0.00%

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审稿时长

>12 weeks

期刊介绍： BMC Developmental Biology is an open access, peer-reviewed journal that considers articles on the development, growth, differentiation and regeneration of multicellular organisms, including molecular, cellular, tissue, organ and whole organism research.