Chromosome-breaking structure in maize involving a fractured Ac element.
Chromosome breakage in maize can result from an interaction between certain transposable elements. When an Ac (Activator) element and a state I Ds (Dissociation) element are present together in the genome, either linked or unlinked, breaks occur regularly at the locus of the Ds element. We show here that breaks occur with high frequency at or near the locus of a structure consisting of a 2.5-kilobase (kb) terminally deleted or fractured Ac element very tightly linked to a second, intact 4.6-kb Ac element. This structure has the features of a macrotransposon and may behave like one. Loss of the tight linkage abolishes chromosome breakage. A model based on transposition of the macrotransposon is proposed to explain the chromosome-breaking properties of Ac and Ds.
17 references, click to expand
-
The controlling element Ds at the Shrunken locus in Zea mays: structure of the unstable sh-m5933 allele and several revertants.Cell. 1983 Sep;34(2):383-93 PMID: 6311430
-
The Stability of Broken Ends of Chromosomes in Zea Mays.Genetics. 1941 Mar;26(2):234-82 PMID: 17247004
-
Analysis of sh-m6233, a mutation induced by the transposable element Ds in the sucrose synthase gene of Zea mays.EMBO J. 1984 Aug;3(8):1713-6 PMID: 16453542
-
A chromosome replication pattern deduced from pericarp phenotypes resulting from movements of the transposable element, modulator, in maize.Genetics. 1984 Oct;108(2):471-85 PMID: 17246235
-
Similar replicon properties of higher plant cells with different S periods and genome sizes.Exp Cell Res. 1981 Dec;136(2):461-5 PMID: 7308320
-
Insertion and excision of Ds controlling elements in maize.Cold Spring Harb Symp Quant Biol. 1984;49:347-54 PMID: 6099246
-
Isolation of the transposable maize controlling elements Ac and Ds.Cell. 1983 Nov;35(1):235-42 PMID: 6313225
-
A system for shotgun DNA sequencing.Nucleic Acids Res. 1981 Jan 24;9(2):309-21 PMID: 6259625
-
Inactivation of the maize transposable element Activator (Ac) is associated with its DNA modification.EMBO J. 1987 Feb;6(2):295-302 PMID: 3034583
-
Intranuclear systems controlling gene action and mutation.Brookhaven Symp Biol. 1956 Feb;(8):58-74 PMID: 13293421
-
DNA sequencing with chain-terminating inhibitors.Proc Natl Acad Sci U S A. 1977 Dec;74(12):5463-7 PMID: 271968
-
Sequence of three bronze alleles of maize and correlation with the genetic fine structure.Genetics. 1988 May;119(1):185-97 PMID: 3396861
-
Transposition Pattern of the Maize Element Ac from the Bz-M2(ac) Allele.Genetics. 1989 Jun;122(2):447-57 PMID: 17246501
-
Molecular basis of mutations at the waxy locus of maize: correlation with the fine structure genetic map.Proc Natl Acad Sci U S A. 1985 Jun;82(12):4177-81 PMID: 3858874
-
Controlling elements and the gene.Cold Spring Harb Symp Quant Biol. 1956;21:197-216 PMID: 13433592
-
Two mutations in a maize bronze-1 allele caused by transposable elements of the Ac-Ds family alter the quantity and quality of the gene product.Genetics. 1988 Nov;120(3):767-77 PMID: 2465200
-
A single genetic unit specifies two transposition functions in the maize element activator.Science. 1986 Oct 10;234(4773):210-1 PMID: 17746481
Contact
No. 2 Wenbo Road, Zhangqiu District, Jinan, Shandong
Qilu Normal University · Genelibs Bioinformatics Lab
750 Shunhua Rd, Jinan
2F, Bldg F, University Science Park
Tel: 0531-88819269
WeChat Official Account
Follow our WeChat subscription account for real-time updates and the latest in medical and biological research.
Business Email
E-mail: product@genelibs.com
Copyright © 2026.Genelibs Jinan Honghui Biotechnology Co., Ltd. 鲁ICP备20007159号-2
