Analysis of LINE-1 family sequences on a single monkey chromosome

The structure of LINE-1 (L1Ca) family members present on African green monkey chromosome CAE-19 is compared with that of the entire set of L1Ca sequences present in the monkey genome. The analysis involved annealing of cloned subsegments of monkey L1 family members to DNA-blots containing restriction endonuclease digests of either total monkey liver DNA or DNA isolated from a monkey/mouse somatic cell hybrid carrying the single monkey chromosome. In addition, L1Ca segments cloned from hybrid cell DNA were characterized by restriction endonuclease mapping and hybridization. The data indicate that, taken as a whole, the set of L1Ca sequences on CAE-19 tends to differ in characteristic ways from the set present in the total monkey genome.