How to become a crab: Phenotypic constraints on a recurring body plan
How to become a crab: Phenotypic constraints on a recurring body plan
复制标题
DOI：
10.1002/bies.202100020
复制
发表时间：
2020-12
期刊：
影响因子：
4
通讯作者：
Joanna M. Wolfe;J. Luque;H. Bracken-Grissom
中科院分区：
文献类型：
--
作者：
Joanna M. Wolfe;J. Luque;H. Bracken-Grissom
生物学中的一个基本问题是表型是否可以通过生态或基因组规则来预测。在十足目甲壳类动物中，至少有五种蟹状体型的趋同进化（具有宽而扁平的形状和弯曲的腹部），并且在140多年的时间里被称为“致癌”。这种身体计划的反复丢失被确定为“去癌化”。在回顾这一领域，我们提供系统发育策略，包括鲜为人知的群体，和来自化石的直接证据，这将解决螃蟹进化的历史和螃蟹内的表型变异的程度。蟹体的生态优势被归纳为一个表型整合假说，表明甲壳形状和腹部的相关进化。我们的前提为未来的基因组和发育基础的研究提供了肥沃的土壤，以及螃蟹样体型的可预测性。
A fundamental question in biology is whether phenotypes can be predicted by ecological or genomic rules. At least five cases of convergent evolution of the crab‐like body plan (with a wide and flattened shape, and a bent abdomen) are known in decapod crustaceans, and have, for over 140 years, been known as “carcinization.” The repeated loss of this body plan has been identified as “decarcinization.” In reviewing the field, we offer phylogenetic strategies to include poorly known groups, and direct evidence from fossils, that will resolve the history of crab evolution and the degree of phenotypic variation within crabs. Proposed ecological advantages of the crab body are summarized into a hypothesis of phenotypic integration suggesting correlated evolution of the carapace shape and abdomen. Our premise provides fertile ground for future studies of the genomic and developmental basis, and the predictability, of the crab‐like body form.