title: Engineered plant minichromosomes.
abstract: Minichromosomes offer an enormous potential for plant breeding and biotechnology, because they may simultaneously transfer and stably express multiple genes. Segregating independently of their host chromosomes, they provide a platform for accelerating plant breeding. Minichromosomes can be established from cloned components in vivo (bottom up) or via engineering of natural chromosomes (top down). When they possess functional centromeres and telomeres, they should be stably inherited, but their meiotic transmission rate is below that of endogenous chromosomes. To achieve the customized generation and control the regular transmission of minichromosomes are important challenges for applied research in chromosome biology. Here, construction and biology of plant minichromosomes are compared with data available for yeast and animal systems.
authors.affiliation: Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), 06466 Stadt Seeland OT Gatersleben, Germany. houben@ipk-gatersleben.de.
authors.forename: Andreas
authors.initials: A
authors.lastname: Houben
authors.forename: Michael F
authors.initials: MF
authors.lastname: Mette
authors.forename: Chee H
authors.initials: CH
authors.lastname: Teo
authors.forename: Inna
authors.initials: I
authors.lastname: Lermontova
authors.forename: Ingo
authors.initials: I
authors.lastname: Schubert
mesh_terms: D000818:Animals; D002503:Centromere / Q000378:metabolism; D002875:Chromosomes; D032461:Chromosomes, Plant / Q000235:genetics*; D004269:DNA, Bacterial / Q000378:metabolism; D004276:DNA, Satellite; D005658:Fungi / Q000378:metabolism; D018014:Gene Transfer Techniques; D017343:Genes, Plant; D005818:Genetic Engineering / Q000379:methods; D005821:Genetic Techniques; D005822:Genetic Vectors; D008540:Meiosis; D010944:Plants / Q000235:genetics; D030821:Plants, Genetically Modified / Q000235:genetics; D016615:Telomere / Q000235:genetics / Q000378:metabolism
chemical_list: D004269:DNA, Bacterial; D004276:DNA, Satellite; C036483:T-DNA