title: Restriction fragment length polymorphism-coupled domain-directed differential display: a highly efficient technique for expression analysis of multigene families.
abstract: In this paper, a reverse-transcriptase PCR-based protocol suitable for efficient expression analysis of multigene families is presented. The method combines restriction fragment length polymorphism (RFLP) technology with a gene family-specific version of mRNA differential display and hence is called "RFLP-coupled domain-directed differential display. "With this method, expression of all members of a multigene family at many different developmental stages, in diverse tissues and even in different organisms, can be displayed on one gel. Moreover, bands of interest, representing gene family members, are directly accessible to sequence analysis, without the need for subcloning. The method thus enables a detailed, high-resolution expression analysis of known gene family members as well as the identification and characterization of new ones. Here the technique was used to analyze differential expression of MADS-box genes in male and female inflorescences of maize (Zea mays ssp. mays). Six different MADS-box genes could be identified, being either specifically expressed in the female sex or preferentially expressed in male or female inflorescences, respectively. Other possible applications of the method are discussed.
authors.affiliation: Max-Planck-Institut für Züchtungsforschung, Abteilung Molekulare Pflanzengenetik, Cologne, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Fischer
authors.forename: H
authors.initials: H
authors.lastname: Saedler
authors.forename: G
authors.initials: G
authors.lastname: Theissen
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D017931:DNA Primers; D004268:DNA-Binding Proteins / Q000737:chemistry / Q000235:genetics*; D015870:Gene Expression; D017343:Genes, Plant; D026161:MADS Domain Proteins; D008969:Molecular Sequence Data; D005810:Multigene Family; D010940:Plant Proteins / Q000737:chemistry / Q000235:genetics*; D016133:Polymerase Chain Reaction; D012150:Polymorphism, Restriction Fragment Length; D017386:Sequence Homology, Amino Acid; D014157:Transcription Factors / Q000737:chemistry / Q000235:genetics*; D003313:Zea mays / Q000235:genetics
chemical_list: D017931:DNA Primers; D004268:DNA-Binding Proteins; D026161:MADS Domain Proteins; D010940:Plant Proteins; D014157:Transcription Factors