Transgenic Insects
Transgenic Insects - Related Videos
01:47
Osmoregulation in Insects
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2019
Malpighian tubules are specialized structures found in the digestive systems of many arthropods, including most insects, that handle excretion and osmoregulation. The tubules are typically arranged in pairs and have a convoluted structure that increases their surface area. Malpighian tubules extend from the digestive tract, typically the area between the midgut and hindgut, into the hemolymph—a mixture of blood and interstitial fluid found in insects and other arthropods, as well as most...
17:39
Microinjection of A. aegypti Embryos to Obtain Transgenic Mosquitoes
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Cited by 56 •
2007
In this video, Nijole Jasinskiene demonstrates the methodology employed to generate transgenic Aedes aegypti mosquitoes, which are vectors for dengue fever. The techniques for correctly preparing microinjection needles, dessicating embryos, and performing microinjection are demonstrated.
02:16
Differentiating Non-Transgenic and Transgenic Human Pluripotent Stem Cells into Neural Progenitor Cells
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2025
This video demonstrates the generation of neural progenitor cells from non-transgenic and transgenic human pluripotent stem cells (hPSCs). hPSCs are differentiated into neural progenitor cells using a neuronal differentiation medium. While differentiation is induced in non-transgenic cells using small molecules, the transgenic hPSCs are differentiated by adding an antibiotic that induces the promoter for a neuronal differentiation-specific transcription factor.
09:00
Insect-controlled Robot: A Mobile Robot Platform to Evaluate the Odor-tracking Capability of an Insect
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Cited by 18 •
2016
The capability to localize an odor source is necessary for insect survival and is expected to be applicable to artificial odor-tracking. The insect-controlled robot is driven by an actual silkmoth and enables us to evaluate the odor-tracking capability of insects through a robotic platform.
07:42
A Simple Flight Mill for the Study of Tethered Flight in Insects
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Cited by 37 •
2015
Flight in insects is influenced by a number of factors and the propensity to disperse is an important variable in understanding insect ecology and biological control strategies. We describe the construction and use of a simple, relatively inexpensive, and flexible flight mill for measuring parameters of tethered flight in insects.
FAQs
Regulatory sequences determine when, where, and how strongly an introduced construct is expressed. In transgenic insects, these sequences connect the inserted DNA to particular tissues, developmental stages, or biological activities. Changing that control can alter the pattern or level of expression, helping researchers test how gene activity relates to development, physiology, or an observable trait.
Germline integration allows the genetic construct to pass from an insect to its offspring, creating a heritable experimental system rather than a one-generation observation. This feature lets researchers examine whether a trait remains associated with the introduced DNA across generations. It also supports longer-term studies of gene function, genetic stability, and inheritance.
An observable phenotype provides a measurable outcome for assessing how a particular genetic construct affects the insect. Researchers can relate changes in traits to the construct’s expression pattern and examine effects in the context of a whole animal. This approach helps connect molecular genetic activity with developmental, physiological, or vector-related characteristics.
The process typically begins by introducing a genetic construct into early embryos. Regulatory sequences within the construct guide its expression, while integration into the germline supports inheritance by subsequent offspring. Researchers can then study the resulting insects and their descendants to determine whether the introduced DNA remains associated with the intended expression pattern and phenotype.
Transgenic insects support several areas of biology, including developmental biology, genetics, physiology, and vector biology. Their value comes from allowing researchers to connect a defined genetic change with traits expressed in a living insect. In vector studies, this whole-animal context can help investigate relationships between genetic factors and characteristics relevant to disease transmission.
These insects can be used to investigate traits relevant to pest management or disease transmission by linking introduced genetic constructs with observable biological outcomes. Such studies may clarify how particular genes influence insect characteristics or vector-related processes. The approach is research-focused, and any potential use requires attention to genetic stability, ecological effects, and containment.