Related Experiment Video
Updated: Jun 4, 2025
12:10
Protocols for Visualizing Steroidogenic Organs and Their Interactive Organs with Immunostaining in the Fruit Fly Drosophila melanogaster
Published on: April 14, 2017
10.4K
Evolution: Molting regulation by ecdysone is conserved in Tardigrada
1Department of Biology, University of North Florida, Jacksonville, FL 32224, USA.
Current Biology : CB
|December 17, 2024
Summary
Molting, a key process in Ecdysozoa, is regulated by ecdysteroid hormones. This study reveals this hormonal control in the tardigrade Hypsibius exemplaris, advancing our understanding of invertebrate development.
Area of Science:
- Zoology
- Developmental Biology
- Endocrinology
Background:
- Molting is a defining characteristic of Ecdysozoa, essential for growth and development.
- The precise regulatory mechanisms governing molting remain poorly understood in many ecdysozoan species.
Purpose of the Study:
- To investigate the role of hormones in regulating the molting process in the tardigrade Hypsibius exemplaris.
- To elucidate the endocrine control of ecdysis in a representative tardigrade model.
Main Methods:
- Utilized the tardigrade Hypsibius exemplaris as a model organism.
- Investigated the effects of ecdysteroid hormones on molting.
Main Results:
- Demonstrated that ecdysteroid hormones play a crucial role in regulating molting in Hypsibius exemplaris.
- Provided evidence for endocrine control of ecdysis in tardigrades.
Conclusions:
- Ecdysteroid hormones are key regulators of molting in the tardigrade Hypsibius exemplaris.
- This finding contributes to understanding the evolution of molting regulation across Ecdysozoa.
More Related Videos
Related Concept Videos
02:27Background and Environment Affect Phenotype
6.4K
Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...
6.4K
02:32Position-effect Variegation
6.3K
In 1928, a German botanist Emil Heitz observed the moss nuclei with a DNA binding dye. He observed that while some chromatin regions decondense and spread out in the interphase nucleus, others do not. He termed them euchromatin and heterochromatin, respectively. He proposed that the heterochromatin regions reflect a functionally inactive state of the genome. It was later confirmed that heterochromatin is transcriptionally repressed, and euchromatin is transcriptionally active chromatin.
6.3K
02:02Cis-regulatory Sequences
9.7K
Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
9.7K
01:47Osmoregulation in Insects
16.1K
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.
16.1K
01:07Speciation Rates
21.0K
Overview
21.0K