Developmental Evolution Of Genetic Regulation And Signaling Of The Dorsoventral Axis Of Protostomes And Deuterostomes

Author

Tammy Lynne Malachowski

Issuing Body

Mississippi State University

Advisor

Diehl, Walter J.

Committee Member

Munn, Giselle T.

Committee Member

Wallace, Lisa

Date of Degree

12-13-2008

Document Type

Graduate Thesis - Open Access

Major

Biological Sciences

Degree Name

Master of Science (M.S.)

College

College of Arts and Sciences

Department

Department of Biological Sciences

Abstract

The placement of Metazoan species into correct clades has become of prime concern to the study of evolutionary development, since the most recent phylogeny of Metazoans indicates embryological divergence. Genetic regulatory networks have been extensively described for some species but not for others. This study examines possible divergence of bilaterians at the protostome-deuterostome divide by examining dorsoventral patterning genes. A specific maternally active gene, dorsal/rela, the final element in the maternal pathway, was found to be a driving force behind this divergence and was co-opted from genes already existing in the Metazoan ancestor.

URI

https://hdl.handle.net/11668/17085

Recommended Citation

Malachowski, Tammy Lynne, "Developmental Evolution Of Genetic Regulation And Signaling Of The Dorsoventral Axis Of Protostomes And Deuterostomes" (2008). Theses and Dissertations. 1486.
https://scholarsjunction.msstate.edu/td/1486