From egg to “no-body”: an overview and revision of developmental pathways in the ancient arthropod lineage Pycnogonida
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- 作者：Georg Brenneis ; Ekaterina V. Bogomolova ; Claudia P. Arango…
- 关键词：Sea spider ; Evolution ; Arthropoda ; Embryology ; Gastrulation ; Postembryonic development ; Anamorphic development ; Evo ; devo ; Protonymphon larva
- 刊名：Frontiers in Zoology
- 出版年：2017
- 出版时间：December 2017
- 年：2017
- 卷：14
- 期：1
- 全文大小：16624KB
- 刊物主题：Zoology; Applied Ecology; Biodiversity; Animal Physiology;
- 出版者：BioMed Central
- ISSN：1742-9994
- 卷排序：14
文摘
BackgroundArthropod diversity is unparalleled in the animal kingdom. The study of ontogeny is pivotal to understand which developmental processes underlie the incredible morphological disparity of arthropods and thus to eventually unravel evolutionary transformations leading to their success. Work on laboratory model organisms has yielded in-depth data on numerous developmental mechanisms in arthropods. Yet, although the range of studied taxa has increased noticeably since the advent of comparative evolutionary developmental biology (evo-devo), several smaller groups remain understudied. This includes the bizarre Pycnogonida (sea spiders) or “no-bodies”, a taxon occupying a crucial phylogenetic position for the interpretation of arthropod development and evolution.