C Elegans Developmental Biology
C Elegans Developmental Biology - Related Videos
09:27
An Introduction to Molecular Developmental Biology
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2023
Molecular signals play a major role in the complex processes occurring during embryonic development. These signals regulate activities such as cell differentiation and migration, which contribute to the formation of specific cell types and structures. The use of molecular approaches allows researchers to investigate these physical and chemical mechanisms in detail. This video will review a brief history of the study of molecular events during development. Next, key questions asked by molecular...
10:41
Tracking and Quantifying Developmental Processes in C. elegans Using Open-source Tools
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Cited by 9 •
2015
Here it is shown how to track and quantify developmental processes in C. elegans. The methods presented are based on open-source tools that can be easily implemented. It is demonstrated how to reconstruct 3D cell-shape models, how to manually track subcellular structures, and how to analyze cortical contractile flow.
11:34
Basic Caenorhabditis elegans Methods: Synchronization and Observation
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Cited by 452 •
2012
The easiness of maintaining and propagating the nematode C. elegans make it a nice model organism to work with. The possibility of synchronizing worms allows the work with a significant amount of subjects at the same developmental stage, what facilitates the study of one particular process in many animals.
09:06
An Introduction to Developmental Genetics
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2023
Development is the complex process through which a single-celled embryo transforms into a multicellular organism. Developmental processes are guided by information encoded in an organism's DNA, and geneticists are trying to understand how this information leads to a fully formed organism. This video reviews seminal research in the field of developmental biology, including the identification of specific genes that control various embryonic processes. An introduction to the major questions asked...
09:51
RNAi in C. elegans
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2023
RNA interference (RNAi) is a widely used technique in which double stranded RNA is exogenously introduced into an organism, causing knockdown of a target gene. In the nematode, C. elegans, RNAi is particularly easy and effective because it can be delivered simply by feeding the worms bacteria that express double stranded RNA (dsRNA) that is complementary to a gene of interest. First, this video will introduce the concept of RNA interference and explain how it causes targeted gene knockdown.
FAQs
The invariant cell lineage gives researchers a reproducible framework for following how individual cells divide, acquire specialized identities, migrate, or undergo programmed cell death during development. Because the sequence can be tracked across animals, investigators can compare altered development with an expected pattern. This helps link a genetic or regulatory change to a specific cell-fate or tissue-organization outcome.
Live microscopy allows researchers to observe developmental events directly in the transparent animal, including cell division, differentiation, migration, and programmed cell death. Following these processes in living organisms connects the timing and location of cellular changes with later tissue and organ formation. The approach therefore provides dynamic information that static observations alone may not capture.
Signaling pathways and regulatory genes coordinate decisions about cell fate, tissue organization, embryogenesis, and larval development. Genetic manipulation can reveal what changes when these controls are altered, while microscopy shows the resulting cellular behavior. Studying these relationships in C. elegans helps identify conserved developmental mechanisms that can also inform investigations of human disease.
Researchers distinguish these processes by combining the nematode's transparent body with observations of its well-characterized cell lineage. Cell division can be followed as cells multiply, differentiation as descendants acquire distinct identities, and migration as cells change position. Comparing these events across embryogenesis and larval development clarifies how separate cellular behaviors contribute to organized tissues and organs.
A supported workflow combines genetic manipulation with microscopy and developmental observation. Researchers alter or examine genes and regulatory factors, follow embryos or larvae through development, and record changes in lineage, cell behavior, tissue organization, or organ formation. The model's rapid life cycle and transparent body make it practical to connect genetic changes with visible developmental outcomes.
Several features work together: a transparent body supports observation, an invariant lineage enables reproducible comparisons, a rapid life cycle shortens developmental studies, and a well-characterized genome supports genetic analysis. These properties allow researchers to examine development in an intact organism while relating cellular events to genetic and regulatory controls rather than studying isolated processes alone.
Studies can address how cells acquire identities, how tissues become organized, and how organs form during development. The same experimental framework also supports research on aging and human disease because developmental findings can expose conserved signaling and regulatory mechanisms. Outcomes are especially informative when genetic analysis and direct observation connect molecular control with changes in cells or tissues.