ArticleChromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology2007
Distinct chromosomal distributions of highly repetitive sequences in maize.
Article in Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.
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33 citing papers in PubMed.
- DNA content, repeatome composition and origin of the Zea mays micronuclei.Scientific reports · 2025Article
- Telomere and subtelomere high polymorphism might contribute to the specificity of homologous recognition and pairing during meiosis in barley in the context of breeding.BMC genomics · 2023Article
- The supernumerary B chromosome of maize: drive and genomic conflict.Open biology · 2021Article
- B Chromosomes in GenusPlants (Basel, Switzerland) · 2021Review
- Telomeres and Subtelomeres Dynamics in the Context of Early Chromosome Interactions During Meiosis and Their Implications in Plant Breeding.Frontiers in plant science · 2021Review
- Sequence analysis of wheat subtelomeres reveals a high polymorphism among homoeologous chromosomes.The plant genome · 2020Article
- A universal chromosome identification system for maize and wild Zea species.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2020Article
- Repetitive sequences and structural chromosome alterations promote intraspecific variations in Zea mays L. karyotype.Scientific reports · 2020Article
- Together But Different: The Subgenomes of the BimodalFrontiers in plant science · 2019Article
- Review
- Review
- Genomic Analysis of the DNA Replication Timing Program during Mitotic S Phase in Maize (The Plant cell · 2017Article
- Unbiased K-mer Analysis Reveals Changes in Copy Number of Highly Repetitive Sequences During Maize Domestication and Improvement.Scientific reports · 2017Article
- Comparative Analysis of Satellite DNA in theG3 (Bethesda, Md.) · 2017Article
- Molecular, genetic and evolutionary analysis of a paracentric inversion in Arabidopsis thaliana.The Plant journal : for cell and molecular biology · 2016Article
- Highly distinct chromosomal structures in cowpea (Vigna unguiculata), as revealed by molecular cytogenetic analysis.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2016Article
- Chromosomal organizations of major repeat families on potato (Solanum tuberosum) and further exploring in its sequenced genome.Molecular genetics and genomics : MGG · 2014Article
- Karyotype variability in tropical maize sister inbred lines and hybrids compared with KYS standard line.Frontiers in plant science · 2014Article
- Karyotype analysis of Panax ginseng C.A.Meyer, 1843 (Araliaceae) based on rDNA loci and DAPI band distribution.Comparative cytogenetics · 2012Article
- Article
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6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The majority of genomic DNA in most plant species is made up of repetitive elements including satellites and retrotransposons. The maize genome is intermediate in size and abundance of repetitive elements between small genomes such as Arabidopsis and rice and larger genomes such as wheat. Although repetitive elements are present throughout the maize genome, individual families are non-randomly distributed along chromosomes. In this work we use fluorescence in-situ hybridization (FISH) to examine the distribution of abundant LTR retroelement families and satellites contained in heterochromatic blocks called knobs. Different retroelement families have distinct patterns of hybridization. Prem1 and Tekay, two very closely related elements, both hybridize along the length of all chromosomes but do so with greater intensity near the centromeres, although subtle differences are detectable between the hybridization patterns. Opie, Prem2/Ji, and Huck are enriched away from the centromeres and Grande is distributed uniformly along the chromosomes. Double labeling with proximally and distally enriched elements on pachytene chromosomes produces alternating blocks of element enrichment. The maize elements hybridized in the same general patterns to chromosomes of maize relatives including Zea diploperennis and Tripsacum dactyloides. Additionally, abundant Tripsacum LTR retroelements are enriched in similar chromosomal regions among the different species. The 180 bp knob satellite is present in large blocks at interstitial locations on chromosome arms. With long exposures, smaller sites of hybridization are detected at the ends of chromosomes, adjacent to the telomere tract. This distal position for knob satellites is conserved among Zea and Tripsacum species.
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