Mutant Embryos
Mutant Embryos - Related Videos
13:48
Live Dissection of Drosophila Embryos: Streamlined Methods for Screening Mutant Collections by Antibody Staining
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Cited by 30 •
2009
We describe a streamlined protocol for generating "fillet" preparations of Drosophila embryos of specific genotypes. This protocol allows efficient execution of a variety of genetic screens. It also allows excellent visualization of structures in the late embryo.
09:17
Generation of Maternal Mutants Using zpc:cas9 Knock-in Zebrafish
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2025
Here, we describe a protocol for generating maternal mutant that couples a stable zpc:cas9 knock-in line with Tol2-mediated delivery of sgRNA expression cassettes.
09:14
Single-Cell RNA Sequencing of Mutant Whole Mouse Embryos: From the Epiblast to the End of Gastrulation
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Cited by 4 •
2024
This paper establishes a pipeline for high-quality single-cell and nuclei suspensions of gastrulating mouse embryos for sequencing of single cells and nuclei.
10:39
Lens Transplantation in Zebrafish and its Application in the Analysis of Eye Mutants
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Cited by 4 •
2009
Lens development involves interactions with other tissues. Several zebrafish eye mutants are characterized by an abnormally small lens size. Here we demonstrate a lens transplantation experiment to determine whether this phenotype is due to intrinsic causes or defective interactions with tissues that surround the lens.
08:39
Shifting Zebrafish Lethal Skeletal Mutant Penetrance by Progeny Testing
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Cited by 8 •
2017
The goal of this protocol is to alter the penetrance of lethal skeletal mutant phenotypes in zebrafish by selective breeding. Lethal mutants cannot be grown to adulthood and bred themselves, therefore this protocol describes a method for tracking and selecting penetrance through multiple generations by progeny testing.
FAQs
An alteration can change either gene expression or the function of its protein product. Those changes may disrupt signaling pathways, cell division, tissue differentiation, or body patterning. Because these processes are connected as cells proliferate and specialize, one genetic change can produce effects in multiple developmental features. This helps investigators connect a gene with the processes it regulates.
Changes in gene expression can alter when, where, or how strongly developmental instructions are produced, while changes in protein function can impair what those instructions accomplish. In mutant embryos, comparing these effects helps separate failures in molecular output from failures in protein activity. That distinction clarifies whether abnormal patterning or differentiation reflects gene regulation or altered action of its product.
Disrupted signaling pathways show how embryonic cells coordinate their behavior during development. A defect in one pathway can be examined through resulting changes in cell division, tissue differentiation, or body patterning. This connects a molecular alteration to developmental outcomes and helps identify pathway components that are essential rather than merely associated. When several features change together, the pattern can point to a shared signaling mechanism.
Researchers use developmental abnormalities in mutant embryos as models for congenital disorders. The model links a genetic alteration to disrupted embryonic processes, such as signaling, cell division, tissue differentiation, or body patterning. This can reveal the biological pathway underlying a disorder rather than only describing its physical outcome, making mutant embryos useful for studying how altered genes contribute to abnormal development.
Genetic screening can help identify genetic alterations associated with developmental changes in mutant embryos. Its importance comes from linking those alterations with processes such as signaling, cell division, tissue differentiation, or body patterning. This connection gives researchers a way to investigate which genes participate in development and to relate genetic findings to broader questions about embryonic growth and congenital disorders.
Targeted genome-editing studies complement mutant-embryo research by examining selected genes in relation to developmental outcomes. Rather than considering only the resulting abnormality, investigators can focus on a proposed gene-function relationship and its effects on signaling, cell division, differentiation, or patterning. This makes genome editing relevant for testing developmental mechanisms and for exploring genes connected with congenital disorders.