Related Experiment Video
Updated: Aug 14, 2026
07:36
Dissection of Imaginal Discs from 3rd Instar Drosophila Larvae
Published on: February 17, 2007
Cell determination and transdetermination in Drosophila imaginal discs
1Department of Zoology, University of Washington, Seattle 98195, USA.
Current Topics in Developmental Biology
|January 19, 1999
Summary
Drosophila imaginal discs provide key insights into cell determination. Transdetermination studies reveal how these cells maintain their fate, offering parallels to human metaplasias.
Area of Science:
- Developmental biology
- Genetics
- Cell biology
Background:
- Drosophila imaginal discs are crucial for studying cell determination and appendage development.
- Understanding how appendage-specific cell fates are established and maintained is a central question.
Purpose of the Study:
- To review the concept of cell determination in imaginal discs.
- To explore the phenomenon of imaginal disc transdetermination and its implications.
- To discuss recent molecular genetic insights into determination and transdetermination.
Main Methods:
- Review of experimental embryology, genetic, and molecular approaches.
- Analysis of historical and recent findings on imaginal disc transdetermination.
- Integration of molecular genetic data to understand determination mechanisms.
Main Results:
- Imaginal discs serve as a model for studying cell determination.
- Transdetermination offers unique insights into the plasticity and stability of cell fates.
- Molecular genetics has illuminated mechanisms underlying determination and transdetermination.
Conclusions:
- Imaginal disc transdetermination provides a valuable model for understanding cell fate plasticity.
- Insights from Drosophila can inform the study of human metaplasias and developmental processes.
Related Concept Videos
01:51Determination
During embryogenesis, cells become progressively committed to different fates through a two-step process: specification followed by determination. Specification is demonstrated by removing a segment of an early embryo, “neutrally” culturing the tissue in vitro—for example, in a petri dish with simple medium—and then observing the derivatives. If the cultured region gives rise to cell types that it would normally generate in the embryo, this means that it is specified. In contrast, determination...
02:45The Ratio of X Chromosome to Autosomes
In most organisms, sex is determined by the ratio of X and Y chromosomes. However, in some organisms, such as Drosophila and C.elegans, sex is determined by the ratio of the number of X chromosomes to the number of sets of autosomes. The Y chromosome in Drosophila is active but does not determine sex. It contains genes responsible for the production of sperms in adult flies.
Normal male Drosophila has a ratio of one X chromosome to two sets of autosomes. In contrast, normal female Drosophila...
Normal male Drosophila has a ratio of one X chromosome to two sets of autosomes. In contrast, normal female Drosophila...
02:13Determining the Plane of Cell Division
Positioning the cell division plane is a critical step during development and cell differentiation, particularly during mitosis when the plane is essential for determining the size of the two daughter cells. The cell division plane is perpendicular to the plane of chromosome segregation, but different types of organisms have different cell division mechanisms to suit their morphology and function.
Animal cells
In animal cells, the cleavage furrow forms along the plane of cell division starting...
Animal cells
In animal cells, the cleavage furrow forms along the plane of cell division starting...