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PLoS One 2022 May 12;175:e0267932. doi: 10.1371/journal.pone.0267932.
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Embryonic and aglomerular kidney development in the bay pipefish, Syngnathus leptorhynchus.

Maters BR , Stevenson E , Vize PD .

In this report we describe the embryogenesis of the bay pipefish, Syngnathus leptorhynchus, and the organogenesis of its aglomerular kidney. Early development was analyzed via a series of montages and images documenting embryos collected from the brood pouches of pregnant males. Despite differences in terminal morphology between pipefish and common teleost models such as medaka and zebrafish, the embryogenesis of these highly advanced fishes is generally similar to that of other fishes. One of the unique features of these fishes is their utilization of an aglomerular kidney. Histological analysis revealed a single long, unbranched kidney tubule in late embryos. The development and structure of this organ was further investigated by cloning the sodium potassium ATPase alpha subunit, atp1a, from S. leptorhynchus and developing whole mount fluorescent in situ hybridization protocols for embryos of this species. Fluorescent stereoscopic and confocal visualization techniques were then used to characterize the 3D morphology of aglomerular kidneys in intact embryos. In all embryonic stages characterized, the aglomerular kidney is a single unbranched tube extending from just behind the head to the cloaca.

PubMed ID: 35551281
Article link: PLoS One

Genes referenced: atp1a1
GO keywords: kidney development

Article Images: [+] show captions
References [+] :
Ahnesjö, The biology of Syngnathidae: pipefishes, seadragons and seahorses. 2011, Pubmed