Open AccessLampbrush chromosomes in the meroistic ovaries of the blowfly Calliphora erythrocephala
Author(s) -
DÄVRING LARS
Publication year - 1983
Publication title -
hereditas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 50
eISSN - 1601-5223
pISSN - 0018-0661
DOI - 10.1111/j.1601-5223.1983.tb00889.x
Subject(s) - biology , nucleolus , calliphora , prophase , period (music) , zoology , meiosis , anatomy , microbiology and biotechnology , botany , genetics , larva , physics , cytoplasm , gene , acoustics
A period of unfolded prophase I chromosomes in females with meroistic ovaries may be a rather universal phenomenon. Earlier investigations on lampbrush chromosomes in oocytes of Drosophila have now been followed up in Calliphora erythrocephala females. RNA‐producing lampbrush chromosomes are formed during the intervening period between the zygo‐pachytene bouquet and the formation of the karyosome in late pachytene. Active nucleoli are developed on several bivalents during this time.