The golden age of comparative morphology: Laser scanning microscopy and neurogenesis in trochophore animals

The golden age of comparative morphology: Laser scanning microscopy and neurogenesis in... Immunochemical labelling of neuronal elements and laser confocal microscopy have considerably expanded the capacity of comparative morphology, and allowed us to study neurogenesis in various trochophore animals at the level of identified neurons. The data obtained have impeached some popular phylogenetic theories. Thus, the comparative study has shown that in the representative Trochozoan species, the orthogonal brain is absent at all developmental stages. Fundamental differences in neurogenesis and neuroarchitecture between trochophores from different taxa suggest that trochophore-like larvae are not homologous, and their likeness is most probably the result of convergence. Our data support the “intercalation hypothesis” of the origin of indirect development with a trochophore-like larva. It seems reasonable to exclude from phylogenetic discussions the orthogon and the trochophore as an ancestral form common for Lophotrochozoa. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Developmental Biology Springer Journals

The golden age of comparative morphology: Laser scanning microscopy and neurogenesis in trochophore animals

Loading next page...
 
/lp/springer_journal/the-golden-age-of-comparative-morphology-laser-scanning-microscopy-and-YC0kBjycbY
Publisher
Springer Journals
Copyright
Copyright © 2010 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Animal Anatomy / Morphology / Histology; Developmental Biology
ISSN
1062-3604
eISSN
1608-3326
D.O.I.
10.1134/S1062360410060056
Publisher site
See Article on Publisher Site

Abstract

Immunochemical labelling of neuronal elements and laser confocal microscopy have considerably expanded the capacity of comparative morphology, and allowed us to study neurogenesis in various trochophore animals at the level of identified neurons. The data obtained have impeached some popular phylogenetic theories. Thus, the comparative study has shown that in the representative Trochozoan species, the orthogonal brain is absent at all developmental stages. Fundamental differences in neurogenesis and neuroarchitecture between trochophores from different taxa suggest that trochophore-like larvae are not homologous, and their likeness is most probably the result of convergence. Our data support the “intercalation hypothesis” of the origin of indirect development with a trochophore-like larva. It seems reasonable to exclude from phylogenetic discussions the orthogon and the trochophore as an ancestral form common for Lophotrochozoa.

Journal

Russian Journal of Developmental BiologySpringer Journals

Published: Dec 2, 2010

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off