title: Correlations of repetitive and AT-rich DNA segments within the chicken globin gene domains.
abstract: The repetitive DNA segments were mapped within a 30 Kbp genomic domain including (in 5' to 3' order) the chicken embryonic pi and adult alpha D (minor) and alpha A (major) globin genes. Two repeats map 5 and 8 Kbp upstream from the embryonic pi gene and another 3 Kbp downstream of the adult alpha A gene. These repetitive DNA sequences are placed within, or immediately adjacent to the AT-rich DNA segments framing this domain. Similar correlations exist also within the chicken beta globin gene domain. The positions of these AT-rich and repetitive DNA segments framing the alpha globin gene domain also correlate with other already explored features of long range DNA organisation, as clusters of sites of DNAse I hypersensitivity and differential methylation, sites of Matrix-DNA attachment, and with the beginning and end of the transcribed domain.
mesh_terms: D000225:Adenine; D000818:Animals; D001482:Base Composition; D002645:Chickens; D004262:DNA Restriction Enzymes; D005796:Genes; D005914:Globins / Q000235:genetics*; D009693:Nucleic Acid Hybridization; D012091:Repetitive Sequences, Nucleic Acid; D013941:Thymine
chemical_list: D005914:Globins; D004262:DNA Restriction Enzymes; D000225:Adenine; D013941:Thymine