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Drosophila gastrulation: from pattern formation to morphogenesis

¹Institut für Genetik, Universität zu Köln, Germany.

Annual Review of Cell and Developmental Biology

|January 1, 1995

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Drosophila gastrulation involves cell shape changes and intercalation, guided by specific genes. These genes encode transcription factors controlling cell behavior and cytoskeleton dynamics during early embryonic development.

Area of Science:

Developmental Biology
Genetics
Cell Biology

Background:

Drosophila gastrulation involves complex morphogenetic movements like germ band extension and germ layer invagination.
These movements are crucial for establishing the basic body plan of the embryo.

Purpose of the Study:

To investigate the genetic control of morphogenetic movements during Drosophila gastrulation.
To understand how transcription factors regulate cell behavior and cytoskeletal dynamics.

Main Methods:

Analysis of zygotically expressed genes demarcating germ layers.
Identification of transcription factors regulating cell behavior.
Study of target genes modulating the cytoskeleton.

Main Results:

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Specific zygotically expressed genes define regions giving rise to germ layers.
These genes encode transcription factors that direct cell intercalation and shape changes.
Target genes controlled by these factors influence cytoskeletal organization.

Conclusions:

Zygotic gene expression is fundamental for orchestrating Drosophila gastrulation.
Transcription factors play a key role in regulating cell behaviors driving morphogenesis.
Modulation of the cytoskeleton is a critical downstream effect of these genetic programs.