Notochord vacuoles absorb compressive bone growth during zebrafish spine formation
نویسندگان
چکیده
منابع مشابه
Shaping the zebrafish notochord
Cellular reorganization based on active cell motility and adhesion is the major means of morphogenesis in animal embryos, and is particularly elaborated in vertebrates. Nowhere is this fact more clearly shown than in the dorsal mesoderm of gastrulating zebrafish embryos. Here, occurring in the company of both cellular internalization at the blastoderm margin (Carmany-Rampey and Schier, 2001) (R...
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The notochord plays critical structural and signaling roles during vertebrate development. At the center of the vertebrate notochord is a large fluid-filled organelle, the notochord vacuole. Although these highly conserved intracellular structures have been described for decades, little is known about the molecular mechanisms involved in their biogenesis and maintenance. Here we show that zebra...
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Notochord vacuoles make a rod for the ver tebrate back T he rod-shaped notochord is one of the fi rst prominent structures to form in the early embryo, and its evolutionary development was a key advance that allowed early chordates to grow larger and swim in the primordial oceans. In modern vertebrates, the notochord consists of two cell layers: an inner core of cells that each contain a large,...
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Basement membranes are thought to be essential for organ formation, providing the scaffold on which individual cells organize to form complex tissues. Laminins are integral components of basement membranes. To understand the development of a simple vertebrate organ, we have used positional cloning to characterize grumpy and sleepy, two zebrafish loci known to control notochord formation, and fi...
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In a large scale screen for mutants with defects in the embryonic development of the zebrafish we identified mutations in four genes,floating head (flh), momo (mom), no tail (ntl), and doc, that are required for early notochord formation. Mutations in flh and ntl have been described previously, while mom and doc are newly identified genes. Mutant mom embryos lack a notochord in the trunk, and t...
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ژورنال
عنوان ژورنال: eLife
سال: 2020
ISSN: 2050-084X
DOI: 10.7554/elife.51221