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Open Access Research article

There is more than one way to turn a spherical cellular monolayer inside out: type B embryo inversion in Volvox globator

Stephanie Höhn and Armin Hallmann*

Author Affiliations

Department of Cellular and Developmental Biology of Plants, University of Bielefeld, Universitätsstrasse 25, 33615 Bielefeld, Germany

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BMC Biology 2011, 9:89  doi:10.1186/1741-7007-9-89

Published: 29 December 2011

Additional files

Additional file 1:

Evolutionary tree of volvocine algae. An evolutionary tree of volvocine algae based on the nucleotide sequences of five chloroplast genes. This phylogenetic analysis indicates that multicellularity evolved only once in this group. There are two fundamentally different sequences through which embryos of the genus Volvox turn right-side out: type A and type B inversion. The type of inversion is indicated for all species of the genus Volvox.

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