title: A simple plant polytene chromosome system, and its use for in situ hybridisation.
abstract: When the cotyledons of Pisum sativum are cultured in the presence of 2-4D, large populations of cells with polytene chromosomes are stimulated to enter prophase; the use of these chromosome for studies of in situ hybridisation with nucleic acids is described.
authors: John Innes Institute, Colney Lane, NR4 7UH, Norwich, England.
authors: D R
authors: DR
authors: Davies
authors: C A
authors: CA
authors: Cullis