Dorsoventral Differences of Morphogenetic Potencies of the Loach Blastoderm in Experiments with Alteration of Mass of Explanted Fragments

Dorsoventral Differences of Morphogenetic Potencies of the Loach Blastoderm in Experiments with... We studied the influence of doubling the mass of explanted fragments of the dorsal and ventral loach blastoderm at the early gastrula stage on their capacity for differentiation of axial structures. The dorsoventral differences are as follows: the differentiation of somites correlates, according to the results of factor analysis, with the shape complication only in double dorsal explants, while the notochord is more differentiated in the ventral fragments, if it is present, than in the dorsal ones. Doubling of the mass of dorsal fragments of the blastoderm enhances their morphogenetic potencies and shifts differentiation towards the formation of trunk axial structures. The increased mass of ventral fragments does not affect their differentiation and morphogenesis, but disturbs the correlation of these processes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Developmental Biology Springer Journals

Dorsoventral Differences of Morphogenetic Potencies of the Loach Blastoderm in Experiments with Alteration of Mass of Explanted Fragments

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2004 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Animal Anatomy / Morphology / Histology
ISSN
1062-3604
eISSN
1608-3326
D.O.I.
10.1023/B:RUDO.0000022352.78596.45
Publisher site
See Article on Publisher Site

Abstract

We studied the influence of doubling the mass of explanted fragments of the dorsal and ventral loach blastoderm at the early gastrula stage on their capacity for differentiation of axial structures. The dorsoventral differences are as follows: the differentiation of somites correlates, according to the results of factor analysis, with the shape complication only in double dorsal explants, while the notochord is more differentiated in the ventral fragments, if it is present, than in the dorsal ones. Doubling of the mass of dorsal fragments of the blastoderm enhances their morphogenetic potencies and shifts differentiation towards the formation of trunk axial structures. The increased mass of ventral fragments does not affect their differentiation and morphogenesis, but disturbs the correlation of these processes.

Journal

Russian Journal of Developmental BiologySpringer Journals

Published: Oct 18, 2004

References

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