ArticleBMC plant biology2016
B chromosome contains active genes and impacts the transcription of A chromosomes in maize (Zea mays L.).
Article in BMC plant biology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.
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Who cites it
54 citing papers in PubMed.
- Distribution of B chromosomes in Prospero autumnale associates with higher reproductive performance in southern Iberia.Genetica · 2026Article
- Comparative genomic analysis and epigenetic profiling of the Drosophila melanogaster B chromosome.Genetics · 2026Article
- The maize B chromosome shapes the transcriptome throughout the entire plant life cycle.Journal of experimental botany · 2025Article
- Identification of cDNA-AFLP fragments associated with the B chromosome from different developmental stages of maize anthers.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2025Article
- Maize B chromosome affects the flowering time.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Genome assembly of the maize B chromosome provides insight into its epigenetic characteristics and effects on the host genome.Genome biology · 2025Article
- Telomere-to-telomere Phragmites australis reference genome assembly with a B chromosome provides insights into its evolution and polysaccharide biosynthesis.Communications biology · 2025Article
- The B Chromosome of Pseudococcus viburni: A Selfish Chromosome that Exploits Whole-Genome Meiotic Drive.Genome biology and evolution · 2025Article
- Chromosome-level genome assemblies reveal genome evolution of an invasive plant Phragmites australis.Communications biology · 2024Article
- Karyotype Variability in WildPlants (Basel, Switzerland) · 2024Article
- Article
- Scoring the number of B chromosomes in Zea mays L. using droplet digital PCR assay.Plant methods · 2023Article
- Rye B chromosomes differently influence the expression of A chromosome-encoded genes depending on the host species.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2022Article
- Heat shock protein 101 contributes to the thermotolerance of male meiosis in maize.The Plant cell · 2022Article
- The non-Mendelian behavior of plant B chromosomes.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2022Review
- Integration of Repeatomic and Cytogenetic Data on Satellite DNA for the Genome Analysis in the GenusPlants (Basel, Switzerland) · 2022Article
- Effect of aneuploidy of a non-essential chromosome on gene expression in maize.The Plant journal : for cell and molecular biology · 2022Article
- Comprehending the dynamism of B chromosomes in their journey towards becoming unselfish.Frontiers in cell and developmental biology · 2022Review
- B Chromosomes' Sequences in Yellow-Necked MiceLife (Basel, Switzerland) · 2021Article
- B Chromosomes in Free-Living Flatworms of the GenusInternational journal of molecular sciences · 2021Article
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Authors and funding
4 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundThe dispensable maize (Zea mays L.) B chromosome is highly heterochromatic and widely believed to be devoid of functional genes. Although low-copy B chromosome causes no obvious phenotype variation, its existence might influence A genome gene expression. Previous studies suggested that B chromosomes are evolved from standard chromosomes; therefore, they might contain genic regions showing homology with A chromosome sequences.
resultsOur data suggested that maize B chromosome influences the A-genome transcription with stronger effect associated with an increase in copy number of B chromosome. In total 130 differently expressed genes were detected in comparison between with and without B chromosome lines. These differentially expressed genes are mainly involved in cell metabolism and nucleotide binding. Using Starter + B, we amplified ten B chromosome loci with high sequence similarity to A-genome genes. Fluorescence in situ hybridization (FISH) confirmed that at least four ~5 kb-sized genes are located on the B chromosome. In addition, through de novo assembly of the reads not unmapped to maize B73 reference genome together with PCR validation, we found three B-located LTR; in particular, one of them, the 3.2 kb comp75688, is expressed in a B-dosage dependent manner.
conclusionWe found that in the presence of maize B chromosome, the transcription of A genome genes was altered, with more impact by the increase of the B chromosome number. The B-located transcriptionally active genes showed high similarity to their A-genome homologues, and retrotransposons on B chromosome also have partial homologous to A genome sequences. Our data shed more lights on the genome structure and evolution of the maize B chromosome.
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