title: Effect of heterospecific DNA on the development of Rana nigromaculata.
abstract: Both the DNA of a balancer-bearing species (Cynops orientalis) and that of a non-balancer-bearing species (Rana nigromaculata), when injected into the fertilized eggs of R. nigromaculata, cause some tadpoles derived from the injected eggs to bear a single balancer-like process on the left operculum. Based upon these results, it may be so concluded that the occurrence of the balancer-like process in the tadpole is neither due to genetic transformation, nor due to balancer induction, but rather due to a non-specific developmental effect of DNA.
mesh_terms: D000818:Animals; D004247:DNA / Q000235:genetics*; D005399:Fishes / Q000196:embryology; D007814:Larva; D011898:Ranidae / Q000196:embryology* / Q000235:genetics; D013045:Species Specificity
chemical_list: D004247:DNA