Scientific Publications

Nonhuman genetics. Genomic basis for the convergent evolution of electric organs.

Publication TypeJournal Article
AuthorsGallant, JR, Traeger LL, Volkening JD, Moffett H., Chen PH, Novina CD, Phillips GN Jr, Anand R., Wells GB, Pinch M., Güth R., Unguez GA, Albert JS, Zakon HH, Samanta MP, and Sussman MR
AbstractLittle is known about the genetic basis of convergent traits that originate repeatedly over broad taxonomic scales. The myogenic electric organ has evolved six times in fishes to produce electric fields used in communication, navigation, predation, or defense. We have examined the genomic basis of the convergent anatomical and physiological origins of these organs by assembling the genome of the electric eel (Electrophorus electricus) and sequencing electric organ and skeletal muscle transcriptomes from three lineages that have independently evolved electric organs. Our results indicate that, despite millions of years of evolution and large differences in the morphology of electric organ cells, independent lineages have leveraged similar transcription factors and developmental and cellular pathways in the evolution of electric organs.
Year of Publication2014
JournalScience (New York, N.Y.)
Volume344
Issue6191
Pages1522-5
Date Published (YYYY/MM/DD)2014/06/27
ISSN Number0036-8075
DOI10.1126/science.1254432
PubMedhttp://www.ncbi.nlm.nih.gov/pubmed/24970089?dopt=Abstract