Complete detailed information on fluorescent fish (Cichlids)

The predecessor of fluorescent fish - golden zebra, or zebrafish. Taiwan's Taigang Biotechnology, which is engaged in genetically modified fluorescent fish technology, released the world's first full-body red fluorescent genetic fish "Taigang Red No. 1" for the first time on March 31, 2006, raising the technology and quality of ornamental fish to the next level. Another realm. Basic introduction Chinese name: Fluorescent fish Alias: golden zebra; Zebrafish Kingdom: Animalia Family: Cichlididae Distribution area: India (predecessor of fluorescent fish - golden zebra) Introduction, reasons for luminescence, marine restoration, species discovery , new product introduction, breeding status, utilization value, breeding and doubts, Introduction This fluorescent fish is different from the green fluorescent fish published in 2001. This time, the coral red gene was produced using genetic engineering and gene transfer technology. A fluorescent fish whose entire body glows red. In addition, Taigang also showed the "Colorful Fluorescent World" for the first time. For the first time, the various Taigang No. 2 fluorescent zebrafish that have been successfully developed were placed in a tank, allowing red, green, purple, yellow and other colors to be displayed in the tank. The short-wavelength black and blue lights reflect each other, truly showing the "colorful" fluorescent world! Fluorescent fish Taigang Red No. 1 Fluorescent Fish is a red coral fluorescent gene plasmid that is injected into the animal pole of fish eggs or embryonic cells by microinjection, so that the host body can express the effects brought by the gene. genetic characteristics. Lin Xuelian, manager of the Taigang Biotechnology R&D Center, said that this time is different from the past. Herring was used for research and development to create the world's first full-body red fluorescent genetic fish. The whole body exudes pink fluorescent charm. , not only can generate new energy and create an excellent magnetic field, it is really the best Feng Shui fortune fish for Chinese people who love red to represent happiness. At the same time, Taigang Technology has been committed to the research and development of multi-colors, hoping to produce more colors, so it tried to use different species of zebrafish to colonize green jellyfish genes and red coral genes into the body through muscle luminescence activators. Using wild zebrafish with darker patterns, we have successfully developed fluorescent zebrafish of various colors. Today, Taigang No. 2 Fluorescent Fairy showed more colors for the first time, making fluorescent fish truly colorful. Reasons for glowing: Fish glow because they are pursuing a mate. Marine Restoration: In addition to its ornamental value, fluorescent genetic fish also have the function of marine restoration. Fang Zuxi, general manager of Taigang Company, said that the development of genetically modified marine organisms will eliminate the need to collect organisms in coral waters, thereby protecting the world's beautiful coral reefs from destruction. In addition, Fang Zuxi also emphasized that using the beauty of genetic modification to replace the direct harvesting of marine life not only protects the marine ecology, but also applies biotechnology development technology to leisure life, which is the most direct and effective feedback. action. Species Discovery At present, scientists have discovered that many fish prefer red tones, and some fish actually have vibrant tones of fluorescent color on their body surfaces. Nico Mitchels of the University of Tübingen in Germany, who led the research on the discovery of fluorescent fish in the ocean, said that so far, many researchers have believed that red is not very welcome in the aquatic world, as the sea surface can directly absorb sunlight. red wavelength in . The permeability of sunlight wavelengths to seawater means that objects in the air are more likely to appear red, objects in shallow water are more likely to be gray, and objects below 33 feet are more likely to appear black. Unlike red, blue-green light can penetrate deeper below the surface of the ocean, which is why the ocean looks blue. But recent findings suggest that fish have unique ways of displaying red hues. "The results of this latest study, which will be published in an upcoming issue of the journal BMC Ecology, show that red fluorescence is widespread in marine fish," said Mitchells. Mitchells in Mangrove Bay While diving in the Red Sea, he accidentally discovered a fish whose body emits red fluorescence. This fish is called the "highcrest triplefin fish". In this sea area, he conducted an in-depth analysis of how deep red light penetrates into the water. . He put on diving goggles to ensure that he could only see red light. He discovered that this strange red fluorescent fish has something unique - it has red spots next to its eye circles, and the red fluorescent light illuminates the entire body or covers the fins. .

Mitchells said, "The most impressive thing is the red fluorescence around the eye circles. Its body seems to be completely illuminated." He pointed out that this red fluorescence is likely to be a secret communication or to attract attention. signal of force. But the exact cause has not yet been confirmed. This is because the red fluorescence comes from the body of the fish, not from the light filtered by the water surface. The red fluorescence emitted by this fish can be clearly seen at the depth of the sea, but it can only be seen clearly at close range. Real face. He told the American Live Science website, "We are convinced that this is the first time that this kind of red fluorescent fish has been found in the sea, and now it is regarded as an important phenomenon characteristic in coral fish." It is reported that many fish species display In 2005, a jellyfish was determined to emit red fluorescence. The phenomenon of emitting fluorescence is usually caused by absorbing one wavelength of light and then releasing it as another very similar wavelength. This red fluorescent fish absorbs the blue-green wavelength of the light and then releases the red wavelength. Mitchells hypothesized that red fluorescence is a common phenomenon in corals and other fish, and since this first discovery, he has also discovered a variety of other fish species in the Mediterranean that emit different colors of fluorescence. New product introduction In 2005, five newly developed fluorescent genetic fish were: Taigang No. 1 new diamond strain - green diamond night pearl, red diamond night pearl and gold diamond night pearl; and Taigang No. 2 new platinum strain - —Platinum Red Leopard and Platinum Green Leopard. Current status of fluorescent fish cultivation In the laboratory of the Beijing Fisheries Science Institute, there are more than 20 goldfish swimming in the water in a fish tank about 1.5 meters long. When the researchers put the waterproof ultraviolet lamp into the water, the goldfish The fish body emits magical fluorescence. Breeding Fluorescent Fish Research Institute personnel said that this is the first batch of fluorescent ornamental fish bred using genetically modified technology in the world, with a total number of 105. The research on transgenic fluorescent fish at the Municipal Fisheries Science Institute lasted for nearly a year. The first batch of 527 goldfish obtained by introducing fluorescent genes, 105 of which emit fluorescence to varying degrees, and some goldfish even emit fluorescence throughout their bodies. Researchers from the institute said that since it is difficult for transgenic engineering to express directional integration and more of it is random integration, the first batch of fluorescent fish can only have fluorescent effects when excited with a purple light in a darker place. US researchers are using fluorescent fish as molecular "lighthouses" to study the early stages of animal development. The Sp2 gene the researchers focused on regulates the expression of other genes, and the fluorescent fish they created may also provide clues about the causes of tumor development. The research results were recently published in the journal "Biological Chemistry". Fluorescent fish Sp2 is a member of the Sp transcription factor family. The Sp protein plays the role of a cell "operator" that can be turned on or off when needed. Researchers at the University of North Carolina found a positive correlation between the development of skin tumors and overproduction of Sp2, and other studies have pointed to similar findings in prostate cancer. But beyond that, little is known about the protein. The researchers suspect that overproduction of Sp2 may serve as an early indicator of tumor formation. So they inserted a fluorescent marker into zebrafish; the marker linked to the Sp2 gene, allowing them to track Sp2 synthesis throughout the organism. When zebrafish are viewed under UV light, the Sp2 tag glows red where the gene is expressed. The researchers said zebrafish is a good animal model for this study. Because the embryos develop within 24 hours and develop outward, what is happening can be seen under a microscope. Furthermore, its Sp2 protein is identical to that found in mammals, so its function is the same in humans and zebrafish. Previous studies have suggested that Sp2 regulates development, not just of tumors, but of the entire organism. The research team also quickly discovered the importance of Sp2 to embryonic development when observing zebrafish. The researchers noticed that in adult zebrafish carrying fluorescent markers, except for the red fluorescence emitting in the female ovary, other places are non-luminous, and the female can also emit red light when laying eggs, which shows that Sp2 is responsible for It is very important in the early stages of development.

As expected, when the researchers deleted Sp2 from the embryos, the embryos no longer developed. The researchers therefore believe they have discovered a fundamental mechanism of embryonic development. The researchers also believe that fluorescent fish will help them answer another question about Sp2, which is whether the protein also plays an important role in the development of certain cancers. For example, if Sp2 plays an important role in the development of brain cancer, then researchers could use fluorescent fish to study brain tumors and theoretically see the fish glow red under ultraviolet light as tumors develop. Therefore, these fluorescent fish can also be used as useful tools to detect early tumor development. Feeding Questions and Answers What will happen if you only buy fish and don’t feed them special feed for fluorescent fish? Basically, no matter what kind of food is fed to the fluorescent fish, the body will still emit fluorescence and will not fade. However, our company's special feed for fluorescent fish contains a patented formula that can enhance the fluorescence brightness of the fluorescent fish and make the colors more attractive. How long does a fish live? Can the life span of fish be guaranteed? The habits of night pearl and green kingfish are exactly the same, and they can survive for two to three years even in the wild. Fluorescent fish are very easy to raise. As long as they are raised correctly, the survival rate is extremely high and they will last forever. Will fade the fluorescent color on the body. What are the mixed fish species? Can you get along peacefully with those fish species? In principle, do not keep them together with large carnivorous or predatory fish. Taking a freshwater tank as an example, our common lantern fish, manchurian fish, zebra, goldfish, guppy, king fish, etc. are all suitable. Peaceful place. Will long-term exposure to black light have any effect on the human body? Generally, the visible spectrum ranges from 400 to 700nm, the spectrum of the black lamp is between 350 and 400nm, and the spectrum of the ultraviolet lamp is 257nm. Therefore, the spectrum of the black lamp will not cause harm to living things. We used to use The black light tube irradiated the fish 24 hours a day for up to 1 month. As a result, the fish showed no disease or abnormality, so it should not cause any harm to the living creatures. Black light tubes are commonly used on stages, mosquito traps, banknote detectors, and decorations. There are no reports of harm to people, but it is still recommended not to look directly at black light tubes for too long. How to tell the difference between male and female fluorescent fish? The dorsal fin of the male fish is bifurcated, but that of the female fish is not. The anal fin of male fish is longer, while that of female fish is shorter and rounder. Are eggs fluorescent when they are born? Because we transfer the fluorescent gene into the reproductive cells of the fish, it can be passed on to future generations through reproduction