title: Chromatin structure in bands and interbands of polytene chromosomes imaged by atomic force microscopy.
abstract: Polytene chromosomes from Drosophila melanogaster, observed from squash preparations, and chromosomes from Chironomus thummi thummi, investigated under physiological conditions, are imaged using an Atomic Force Microscope. Various chromatin fiber structures can be observed with high detail in fixed chromosomes and correspond to structures which are also observed in chromosomes of diploid cells. Unfixed chromosomes can be imaged in buffer and show less fiber-like details because of the inherent soft nature of the chromatin material.
authors.affiliation: Department of Applied Physics, University of Twente, Enschede, The Netherlands.
authors.forename: C J
authors.initials: CJ
authors.lastname: de Grauw
authors.forename: A
authors.initials: A
authors.lastname: Avogadro
authors.forename: D J
authors.initials: DJ
authors.lastname: van den Heuvel
authors.forename: K O
authors.initials: KO
authors.lastname: vd Werf
authors.forename: C
authors.initials: C
authors.lastname: Otto
authors.forename: Y
authors.initials: Y
authors.lastname: Kraan
authors.forename: N F
authors.initials: NF
authors.lastname: van Hulst
authors.forename: J
authors.initials: J
authors.lastname: Greve
mesh_terms: D000818:Animals; D002683:Chironomidae / Q000648:ultrastructure; D002843:Chromatin / Q000648:ultrastructure*; D002875:Chromosomes / Q000648:ultrastructure*; D004171:Diploidy; D004331:Drosophila melanogaster / Q000648:ultrastructure; D007091:Image Processing, Computer-Assisted; D018625:Microscopy, Atomic Force / Q000379:methods*; D012469:Salivary Glands / Q000648:ultrastructure
chemical_list: D002843:Chromatin