Open AccessRecombination frequencies and the coincidence in proximal X‐chromosome regions including heterochromatin in Drosophila melanogaster
Author(s) -
LAKE STAFFAN
Publication year - 1986
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.1601-5223.1986.tb00671.x
Subject(s) - centromere , biology , euchromatin , heterochromatin , meiosis , genetics , recombination , drosophila melanogaster , chromosome , brood , x chromosome , zoology , gene
The proximal part (f ‐centromere) of the X‐chromosome has a peculiar brood pattern. This interval has been divided by car in the present test. Maternal influence on proximal recombination was obtained. The maternal influence occurred in broods corresponding to meiosis in pupal stages. A low coefficient of coincidence was scored. The car ‐centromere interval was further divided by su(f). Heterochromatic recombination was obtained at levels described in the literature. The majority of recombinants were scored in the 1‐3rd day brood. No double cross‐overs were obtained in the heterochromatin or the adjacent euchromatic region. The coincidence in proximal parts of the chromosomes is discussed. 2 Department of Genetics, University of Stockholm, S‐106 91 Stockholm, Sweden