Development of the prototroch in embryogenesis of Nereis virens (polychaeta)

Development of the prototroch in embryogenesis of Nereis virens (polychaeta) Prototroch formation was studied in the polychaete Nereis virens using light, scanning electron, and confocal laser microscopy. Cell lineage of trochoblasts was followed and chronology of their appearance was determined. The prototroch ciliary ring is formed by twelve descendants of micromere 1m 2. The remaining four primary trochoblasts have no cilia and, together with descendants of accessory trochoblasts, become anterior supporting cells of the prototroch. Posterior supporting cells are formed by secondary trochoblasts, which are derived from the second micromere quartet 2m. The results obtained make it possible to analyze one of the ancient programs of animal development. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Developmental Biology Springer Journals

Development of the prototroch in embryogenesis of Nereis virens (polychaeta)

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2006 by Pleiades Publishing, Inc.
Subject
Life Sciences; Developmental Biology; Animal Anatomy / Morphology / Histology
ISSN
1062-3604
eISSN
1608-3326
D.O.I.
10.1134/S1062360406020020
Publisher site
See Article on Publisher Site

Abstract

Prototroch formation was studied in the polychaete Nereis virens using light, scanning electron, and confocal laser microscopy. Cell lineage of trochoblasts was followed and chronology of their appearance was determined. The prototroch ciliary ring is formed by twelve descendants of micromere 1m 2. The remaining four primary trochoblasts have no cilia and, together with descendants of accessory trochoblasts, become anterior supporting cells of the prototroch. Posterior supporting cells are formed by secondary trochoblasts, which are derived from the second micromere quartet 2m. The results obtained make it possible to analyze one of the ancient programs of animal development.

Journal

Russian Journal of Developmental BiologySpringer Journals

Published: Mar 27, 2006

References

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