Zebrafish Genetics Studies

In the world of molecular genetics and genomics, the zebrafish has been a common topic of study. The reason for this is that there are several characteristics of the fish species, such as its ability to regenerate body parts and organs without the use of stem cells, that make it ideal for research. As experts learn about the methods in cell biology of the various species of zebrafish, this information may be able to be used to help treatment of common human problems. While the zebrafish is not the only species used in the study of fish genetics, the data that has been gleaned has been especially important.

The first look at zebrafish genetics came in 2001 when a team from the University of Oklahoma published their project of mapping the entire mitochondrial DNA sequence from a single species of zebrafish known as D. rerio. The sequence consisted of less than 17,000 base pairs and is similar in length to the common goldfish and carp. A later study from 2005 examined the zebrafish genetics that are responsible for its unique coloration and pigmentation. From this research, scientists were able to extrapolate the fish genetics data to gain a better understanding of human DNA, with the discovery that the difference in human skin color is only related to a single difference in a base pair.

The latest research into zebrafish genetics was completed in the year 2009 by a Indian team from the Delhi based Institute of Genomics and Integrative Biology. Their work sequenced the whole genetic information from a wild species of zebrafish. In total, the genetic letters number over 1.7 billion individual characters and was one of the first comprehensive looks at the entire DNA of this species. As better methods in cell biology and fish genetics are discovered, it is thought that the zebrafish will become an even more popular research species.