ArticleChromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology2020
The maize B chromosome is capable of expressing microRNAs and altering the expression of microRNAs derived from A chromosomes.
Article in Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 18 citations in OpenAlex.
- First characterization of PIWI-interacting RNA clusters in a cichlid fish with a B chromosome.BMC biology · 2022Article
- Meiotic behavior, transmission and active genes of B chromosomes in the cichlid Astatotilapia latifasciata: new clues about nature, evolution and maintenance of accessory elements.Molecular genetics and genomics : MGG · 2022Article
- Crosstalk and gene expression in microorganisms under metals stress.Archives of microbiology · 2022Review
- 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
- The r-X1 deletion induces terminal deficiencies in the maize B chromosome.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2021Article
- Intragenomic Conflict between Knob Heterochromatin and B Chromosomes Is the Key to Understand Genome Size Variation along Altitudinal Clines in Maize.Plants (Basel, Switzerland) · 2021Article
- Differential expression of miRNAs in the presence of B chromosome in the cichlid fish Astatotilapia latifasciata.BMC genomics · 2021Article
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Authors and funding
4 authors at 3 institutions in 1 country.
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Abstract
Supernumerary B chromosomes (Bs) are nonessential chromosomes that are considered genetically inert. However, the maize B carries control elements that direct its behavior, such as that of nondisjunction, during the second pollen mitosis, and affects normal A chromosomes during cell division. Recently, the maize B has been found to contain transcriptionally active sequences and to affect the transcription of genes on A chromosomes. To better understand the regulatory mechanisms underlying the maize B, we constructed two small RNA libraries from maize B73 inbred lines with and without Bs. The sequencing results revealed that 18 known microRNAs (miRNAs) were significantly differentially expressed in response to the presence of the B, and most target mRNAs were characterized as transcription factors. Moreover, three novel B-derived miRNAs were identified via stem-loop reverse transcriptase-polymerase chain reaction (RT-PCR)-based analysis, and all showed consistent B-specific expression in almost all analyzed inbred lines and in all tissue types, including leaves, roots, and pollen grains. By the use of B-10L translocations, the three B-derived miRNAs were mapped to specific B regions. The results from this study suggest that the maize B can express miRNAs and affect the expression of A-derived miRNAs, which could regulate the expression of A-located genes.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.