title: Plant minichromosomes.
abstract: Plant minichromosomes have the potential for stacking multiple traits on a separate entity from the remainder of the genome. Transgenes carried on an independent chromosome would facilitate conferring many new properties to plants and using minichromosomes as genetic tools. The favored method for producing plant minichromosomes is telomere-mediated chromosomal truncation because the epigenetic nature of centromere function prevents using centromere sequences to confer the ability to organize a kinetochore when reintroduced into plant cells. Because haploid induction procedures are not always complete in eliminating one parental genome, chromosomes from the inducer lines are often present in plants that are otherwise haploid. This fact suggests that minichromosomes could be combined with doubled haploid breeding to transfer stacked traits more easily to multiple lines and to use minichromosomes for massive scale genome editing.
authors.affiliation: Division of Biological Sciences, University of Missouri, Columbia, MO 65211, United States. Electronic address: BirchlerJ@Missouri.edu.
authors.forename: James A
authors.initials: JA
authors.lastname: Birchler
authors.affiliation: Division of Biological Sciences, University of Missouri, Columbia, MO 65211, United States.
authors.forename: Nathaniel D
authors.initials: ND
authors.lastname: Graham
authors.affiliation: Division of Biological Sciences, University of Missouri, Columbia, MO 65211, United States.
authors.forename: Nathan C
authors.initials: NC
authors.lastname: Swyers
authors.affiliation: Division of Biological Sciences, University of Missouri, Columbia, MO 65211, United States.
authors.forename: Jon P
authors.initials: JP
authors.lastname: Cody
authors.affiliation: Division of Biological Sciences, University of Missouri, Columbia, MO 65211, United States.
authors.forename: Morgan E
authors.initials: ME
authors.lastname: McCaw
mesh_terms: D000818:Animals; D032461:Chromosomes, Plant; D057890:Epigenomics; D018745:Genome, Plant; D006238:Haploidy; D006801:Humans; D000069600:Plant Breeding; D010944:Plants / Q000235:genetics*; D016615:Telomere / Q000235:genetics; D019076:Transgenes