Ontology highlight
ABSTRACT:
SUBMITTER: Torgasheva AA
PROVIDER: S-EPMC6575587 | biostudies-literature | 2019 Jun
REPOSITORIES: biostudies-literature
Proceedings of the National Academy of Sciences of the United States of America 20190429 24
An unusual supernumerary chromosome has been reported for two related avian species, the zebra and Bengalese finches. This large, germline-restricted chromosome (GRC) is eliminated from somatic cells and spermatids and transmitted via oocytes only. Its origin, distribution among avian lineages, and function were mostly unknown so far. Using immunolocalization of key meiotic proteins, we found that GRCs of varying size and genetic content are present in all 16 songbird species investigated and ab ...[more]