A Natural Animal Model System of Craniofacial Anomalies: The Blind Mexican Cavefish
نویسندگان
چکیده
منابع مشابه
Adaptive evolution of eye degeneration in the Mexican blind cavefish.
The evolutionary mechanisms responsible for eye degeneration in cave-adapted animals have not been resolved. Opposing hypotheses invoking neural mutation or natural selection, each with certain genetic and developmental expectations, have been advanced to explain eye regression, although little or no experimental evidence has been presented to support or reject either theory. Here we review rec...
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The development and implementation of a scientific outreach activity comes with a number of challenges. A successful outreach event must match the sophistication of content to the audience, be engaging, expand the knowledge base for participants, and be inclusive for a diverse audience. Ideally, a successful event will also convey the importance of scientific outreach for future scientists and ...
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Astyanax mexicanus, a teleost fish that exists in a river-dwelling surface form and multiple cave-dwelling forms, is an excellent system for studying the genetic basis of evolution. Cavefish populations, which independently evolved from surface fish ancestors multiple times, have evolved a number of morphological and behavioral traits. Quantitative trait loci (QTL) analyses have been performed ...
متن کاملMexican blind cavefish use mouth suction to detect obstacles.
Fish commonly use their lateral line system to detect moving bodies such as prey and predators. A remarkable case is the Mexican blind cavefish Astyanax fasciatus, which evolved the ability to detect non-moving obstacles. The swimming body of A. fasciatus generates fluid disturbances, the alteration of which by an obstacle can be sensed by the fish's lateral line system. It is generally accepte...
متن کاملThe lateral line system is not necessary for rheotaxis in the Mexican blind cavefish (Astyanax fasciatus).
Fish resist being swept downstream by swimming against a current. Mexican blind cavefish (Astyanax fasciatus) exhibit this innate behavior, rheotaxis, without the aid of vision, but it has been debated whether this ability requires sensing flow with the lateral line system. We tested the role of the lateral line by comparing swimming in a flow chamber in a group of cavefish with a compromised l...
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ژورنال
عنوان ژورنال: The Anatomical Record
سال: 2018
ISSN: 1932-8486,1932-8494
DOI: 10.1002/ar.23998