Sorry for the newbie question I may be totally off with my understanding, but I am unable to find anywhere where my question is explicitly listed.From my understanding SEO can be preserved if a totally new domain name and hosting is registered with a new registrar, and a 301 redirect was employed from the old registrar (with the old domain and hosting still intact). But is there a way to migrate the previous domain name to the new registrar and preserve SEO rankings (on both the root directory and sub-directories)? 
How to preserve SEO when transferring registrar?
seo;domains;redirects;301 redirect;domain registrar