The sequence organization in the DNA of chicken (Gallus domesticus) was studied using hydroxyapatite-monitored reassociation kinetics. DNA 320-nucleotides long reassociates as though it is composed of three components, i.e., a very rapidly reacting fold-back fraction, a component composed of sequences repeated an average of 640 times in the genome, and a large unique fraction representing about 80% of the genome. The sizes of the fold back and repeated components increase only moderately with large increases in fragment size, indicating that these sequences are not extensively interspersed in the genome. Even at a fragment size of 4500 nucleotides, the unique component represents 68% of the DNA. Thus, the chicken genome is not organized in the short-period (Xenopus) interspersion pattern described for a large number of other organisms; rather, the DNA-sequence organization of this vertebrate bears more resemblance to the long-period interspersion pattern of Drosophila.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.