The benefitial see-through frog
by skyfogarty1265 on March 25, 2017 - 11:06pm
The overall purpose of breeding to create a see-through frog was done in order to benefit students, and the organisms themselves. Often, frogs are used for visual labs in schools, colleges, etc. Therefore scientists wanted to create a frog that could be used as a model without being dissected in order to observe its organs, blood vessels, and structure. By breeding two recessive colored frogs by artificial insemination, F2 generation offsprings of the Rapa Japonica frog, created an entirely translucent variation of the species.
Figure 1: The translucent Rapa Japonica frog offspring
From crossing two color mutant (gray-eyed and black-eyed) frogs with recessive genes through artificial insemination, all of the offspring appeared normal due to the presence of dominant genes. Through this selective breeding the first transparent organism was created including visible lungs, ovaries, liver, heart, intestines, stomach, oviduct, and fat bodies for research without the use of dissection. Varied life cycles of the frog can now be observed in addition such as ovulation and metamorphosis of the organism throughout its life. Differing from its orginal colored phenotype, is the aligned layers of skin the frog possesses. The frog has three kinds of dermal chromatopheres- xanthophores, iridophors, and melanophores. These chromatopheres appear less in the skin of the see-through frogs as it does in its colored ancestors.
Figure 2: The evolution of the translucent skin
I chose this article from Nature.com because I enjoy looking into and learning more about animals and I also found this study interesting because not only does it benefit us when trying to learn, but it helps the frogs as well because they do not need to be dissected for the use of science. Although the genotype of the frogs is being altered, they are not negtively affected by this alteration in traits. I support this study because while being a science major, I do not enjoy dissecting animals and so on to observe them. This type of belief may be relevant to many other people because peoples outlook and beliefs on science practices such as dissection differ on whether its ethically right or wrong to do so. Now, we could be able to observe a live specimen which I find more appealing. This article is relevant to helping us discover ways in which pairing of different genes and alterations could create and benefit organisms and their outcomes.