Metamorphosis in teleosts.
Metamorphosis in teleosts.
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DOI：
10.1016/b978-0-12-385979-2.00005-8
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发表时间：
2013
影响因子：
--
通讯作者：
Parichy DM
中科院分区：
文献类型：
--
作者：
McMenamin SK;Parichy DM
硬骨鱼是脊椎动物中最大和最多样化的类群，许多物种在形态上不同的生命阶段之间经历形态、生理和行为的转变，即“变态”。硬骨鱼的幼体变态通常发生在从幼体到幼鱼的成熟过程中，包括胚胎特异性特征的丧失、新的成体特征的发育、不同器官系统的主要重塑以及身体比例和整体表型的变化。然而，与无尾两栖动物相反，例如，硬骨鱼的变态可能需要形态变化，要么是突然和深刻的，要么是相对渐进和微妙的。在这里，我们回顾了硬骨鱼类变态的定义，硬骨鱼类变态策略的多样性和它们所涉及的过渡，以及它们潜在的内分泌和遗传基础。我们认为，硬骨鱼变态提供了一个突出的机会，整合我们的内分泌机制，细胞过程的形态发生和分化，以及不同的形态和生活史的进化的理解。
Teleosts are the largest and most diverse group of vertebrates, and many species undergo morphological, physiological, and behavioral transitions, “metamorphoses,” as they progress between morphologically divergent life stages. The larval metamorphosis that generally occurs as teleosts mature from larva to juvenile involves the loss of embryo-specific features, the development of new adult features, major remodeling of different organ systems, and changes in physical proportions and overall phenotype. Yet, in contrast to anuran amphibians, for example, teleost metamorphosis can entail morphological change that is either sudden and profound, or relatively gradual and subtle. Here, we review the definition of metamorphosis in teleosts, the diversity of teleost metamorphic strategies and the transitions they involve, and what is known of their underlying endocrine and genetic bases. We suggest that teleost metamorphosis offers an outstanding opportunity for integrating our understanding of endocrine mechanisms, cellular processes of morphogenesis and differentiation, and the evolution of diverse morphologies and life histories.