Salmon parasite has no mitochondrial DNA

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In summary, a salmon parasite called <i>Gyrodactylus salaris</i> is known to infect Atlantic salmon and is unique in that it does not have mitochondrial DNA. It is believed that the parasite has evolved to survive without this genetic material by obtaining nutrients from its host. However, this lack of mitochondrial DNA also affects its reproduction as it can only reproduce asexually. Scientists are exploring the possibility of using this as a target for control measures, as the parasite is considered a major threat to wild salmon populations.
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pinball1970
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A multi-cellular parasite has been found to have no mitochondrial DNA. This trait was considered ubiquitous in multicellular organisms
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Other parasites have lost or greatly reduced their mitochondria.
An example is Giardia.
It was thought to be an evolutionary intermediate between cells with mitochondria and those that don't have mitochondria.
Now it is thought to have had mitochondria in the past and then lost them (or had them greatly reduced).
 
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1. What is a salmon parasite without mitochondrial DNA?

A salmon parasite without mitochondrial DNA is a type of parasite that has lost its ability to produce energy through the process of oxidative phosphorylation, which is typically done by mitochondria. This is a rare occurrence in nature and is still being studied by scientists.

2. How does a salmon parasite survive without mitochondrial DNA?

Scientists believe that the salmon parasite may have evolved alternative methods of obtaining energy, such as obtaining nutrients from its host or using other cellular structures to produce energy. However, the exact mechanisms are still being researched.

3. Is the lack of mitochondrial DNA a disadvantage for the salmon parasite?

It is currently believed that the lack of mitochondrial DNA may be a disadvantage for the salmon parasite. Mitochondria play a crucial role in cellular metabolism and without it, the parasite may have a reduced ability to produce energy and survive.

4. Can the salmon parasite pass on its lack of mitochondrial DNA to future generations?

It is possible that the lack of mitochondrial DNA in the salmon parasite may be inherited by future generations. However, this has not been confirmed and more research is needed to fully understand the genetic implications of this phenomenon.

5. How does the discovery of a salmon parasite without mitochondrial DNA impact our understanding of evolution?

The discovery of a salmon parasite without mitochondrial DNA challenges our current understanding of evolution and the role of mitochondria in living organisms. It raises questions about the adaptability and survival of organisms without essential cellular structures and may lead to further research in this area.

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