陆生等足动物多足肺的发育

IF 1.7 3区 农林科学 Q2 ENTOMOLOGY Arthropod Structure & Development Pub Date : 2022-11-01 DOI:10.1016/j.asd.2022.101210
Naoto Inui, Ryosuke Kimbara, Haruka Yamaguchi, Toru Miura
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引用次数: 2

摘要

在进化过程中,各种节肢动物在陆地上定居,并独立获得了呼吸空气的器官。一些尾足类等足类(甲壳纲,等足纲,尾足纲)是陆地上最成功的甲壳类动物,它们的腹部附属物(即多足类)具有称为“肺”或“假气管”的器官,用于呼吸空气。虽然这些肺对适应陆地环境很重要,但它们的发育过程尚未阐明。在本研究中,我们研究了具有多足肺的普通粗壮木虱的肺发育过程。第二多足类动物的肺在manca 1期(孵化后立即)发育,在manca 2期开始功能。在manca 3期出现的第一代多足类动物中,肺在manca 3期逐渐发育,并在manca 3期后的幼兽中开始发挥功能。在第二多足动物中,上皮内陷导致肺发育。这些结果表明,陆生等足类动物在陆地化过程中获得了一些新的发育机制,包括上皮内陷和角质层的形成,从而导致了功能肺的发育。
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Pleopodal lung development in a terrestrial isopod, Porcellio scaber (Oniscidea)

During evolution, various lineages of arthropods colonized land and independently acquired air-breathing organs. Some taxa of oniscidean isopods (Crustacea, Isopoda, Oniscidea) are the most successful crustacean lineages on land and possess organs called “lungs” or “pseudotrachea” for air-breathing in their abdominal appendages, i.e., in pleopods. Although these lungs are important for adapting to the terrestrial environment, their developmental process has not yet been elucidated. In the present study, we investigated the process of lung development in Porcellio scaber, the common rough woodlouse with pleopodal lungs in the first two pairs of pleopods. The lungs in the second pleopods developed at the manca 1 stage (immediately after hatching) and became functional at the manca 2 stage. In the first pleopods, which appear at the manca 3 stage, the lungs were gradually developed during the manca 3 stage and became functional in post-manca juveniles. In the second pleopods, epithelial invaginations led to lung development. These results suggest that some novel developmental mechanisms with epithelial invaginations and cuticle formation were acquired during terrestrialization, resulting in the development of functional lungs in the terrestrial isopod lineages.

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来源期刊
CiteScore
3.50
自引率
10.00%
发文量
54
审稿时长
60 days
期刊介绍: Arthropod Structure & Development is a Journal of Arthropod Structural Biology, Development, and Functional Morphology; it considers manuscripts that deal with micro- and neuroanatomy, development, biomechanics, organogenesis in particular under comparative and evolutionary aspects but not merely taxonomic papers. The aim of the journal is to publish papers in the areas of functional and comparative anatomy and development, with an emphasis on the role of cellular organization in organ function. The journal will also publish papers on organogenisis, embryonic and postembryonic development, and organ or tissue regeneration and repair. Manuscripts dealing with comparative and evolutionary aspects of microanatomy and development are encouraged.
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