Intra- and interspecific genome-size variation in the Salmonidae.
The nuclear DNA contents of 22 salmonid taxa, estimated primarily by flow-cytometric analysis relative to a chicken internal standard, were evaluated to compare intra- and interspecific variation in DNA content within this fish family. The average variability within taxa exceeded that among taxa. Intraspecific genome-size variation was substantial and, in some cases, exceeded the mean genome size for the species. The flow-cytometric method used here allows for rapid and reliable comparison of nuclear DNA contents within and among individuals from natural animal populations.
Lockwood
S F
SF
Department of Zoology, University of New Hampshire, Durham.
Derr
J N
JN
D000818:Animals; D014644:Genetic Variation; D016678:Genome; D012487:Salmonidae / Q000235:genetics*