Extensive allopolyploidy in the neotropical genus Lachemilla (Rosaceae) revealed by PCR-based target enrichment of the nuclear ribosomal DNA cistron and plastid phylogenomics.
Sign Up to like & getrecommendations! Published in 2019 at "American journal of botany"
DOI: 10.1002/ajb2.1253
Abstract: PREMISE OF THE STUDY Polyploidy has been long recognized as an important force in plant evolution. Previous studies had suggested widespread occurrence of polyploidy and the allopolyploid origin of several species in the diverse neotropical… read more here.
Keywords: lachemilla; genus; dna cistron; nuclear ribosomal ... See more keywords
A ribosomal DNA-hosted microRNA regulates zebrafish embryonic angiogenesis
Sign Up to like & getrecommendations! Published in 2019 at "Angiogenesis"
DOI: 10.1007/s10456-019-09663-3
Abstract: MicroRNAs (miRNAs) are single-stranded small non-coding RNAs, generally 18–25 nucleotides in length, that act as repressors of gene expression. miRNAs are encoded by independent genes or processed from a variety of different RNA species. So… read more here.
Keywords: dna hosted; angiogenesis ribosomal; dna; hosted microrna ... See more keywords
Ribosomal DNA in the protozoan parasite Giardia duodenalis has a differential chromatin distribution and epigenetic markings across the subunits.
Sign Up to like & getrecommendations! Published in 2021 at "Acta tropica"
DOI: 10.1016/j.actatropica.2021.105872
Abstract: Giardia duodenalis is a parasite that causes a large number of diarrheal diseases around the world. It is noteworthy that in a large number of processes, Giardia requires fewer components than other eukaryotes, even without… read more here.
Keywords: giardia duodenalis; chromatin; ribosomal dna; giardia ... See more keywords
Quantification of the dynamic behaviour of ribosomal DNA genes and nucleolus during yeast Saccharomyces cerevisiae cell cycle.
Sign Up to like & getrecommendations! Published in 2019 at "Journal of structural biology"
DOI: 10.1016/j.jsb.2019.08.010
Abstract: Spatial organisation of chromosomes is a determinant of genome stability and is required for proper mitotic segregation. However, visualization of individual chromatids in living cells and quantification of their geometry, remains technically challenging. Here, we… read more here.
Keywords: yeast saccharomyces; saccharomyces cerevisiae; ribosomal dna; geometry ... See more keywords
Zonation of Ribosomal DNA Transcription Defines a Stem Cell Hierarchy in Colorectal Cancer.
Sign Up to like & getrecommendations! Published in 2020 at "Cell stem cell"
DOI: 10.1016/j.stem.2020.04.012
Abstract: Colorectal cancers (CRCs) are composed of an amalgam of cells with distinct genotypes and phenotypes. Here, we reveal a previously unappreciated heterogeneity in the biosynthetic capacities of CRC cells. We discover that the majority of… read more here.
Keywords: cell; dna transcription; stem cell; ribosomal dna ... See more keywords
Characterization of the complete nuclear ribosomal DNA sequences of Eurytrema pancreaticum
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Helminthology"
DOI: 10.1017/s0022149x17000554
Abstract: Abstract Eurytrema pancreaticum is one of the most common trematodes of cattle and sheep, and also infects humans occasionally, causing great economic losses and medical costs. In this study, the sequences of the complete nuclear… read more here.
Keywords: eurytrema pancreaticum; rdna; nuclear ribosomal; ribosomal dna ... See more keywords
A molecular phylogeny of the genus Drimia (Asparagaceae: Scilloideae: Urgineeae) in India inferred from non-coding chloroplast and nuclear ribosomal DNA sequences
Sign Up to like & getrecommendations! Published in 2019 at "Scientific Reports"
DOI: 10.1038/s41598-019-43968-z
Abstract: The evolutionary history of the medicinally important bulbous geophyte Drimia (subfamily: Scilloideae) has long been considered as a matter of debate in the monocot systematics. In India the genus is represented by a species complex,… read more here.
Keywords: dna; phylogeny genus; molecular phylogeny; drimia ... See more keywords
Molecular characterisation of the complete nuclear ribosomal DNA sequence of the blacklip abalone Haliotis rubra
Sign Up to like & getrecommendations! Published in 2018 at "New Zealand Journal of Marine and Freshwater Research"
DOI: 10.1080/00288330.2018.1430594
Abstract: ABSTRACT Genes encoded in nuclear ribosomal DNA (nrDNA), which comprise a multi-family of genes with tandem repeat units, play an important role in nucleolus formation. In the present study, we sequenced and analysed the complete… read more here.
Keywords: haliotis rubra; abalone; nuclear ribosomal; ribosomal dna ... See more keywords
Concerted and birth-and-death evolution of 26S ribosomal DNA in Camellia L.
Sign Up to like & getrecommendations! Published in 2020 at "Annals of botany"
DOI: 10.1093/aob/mcaa169
Abstract: BACKGROUND AND AIMS The Ribosomal DNA (rDNA) gene family, encoding ribosomal RNA (rRNA), has long be regarded as an archetypal example in illustrating the model of concerted evolution. However, controversy is arising, as rDNA within… read more here.
Keywords: evolution; concerted birth; death evolution; rdna ... See more keywords
Transcriptional Mutagenesis Prevents Ribosomal DNA Deterioration: The Role of Duplications and Deletions
Sign Up to like & getrecommendations! Published in 2019 at "Genome Biology and Evolution"
DOI: 10.1093/gbe/evz235
Abstract: Abstract Clashes between transcription and replication complexes can cause point mutations and chromosome rearrangements on heavily transcribed genes. In eukaryotic ribosomal RNA genes, the system that prevents transcription–replication conflicts also causes frequent copy number variation.… read more here.
Keywords: duplications deletions; transcriptional mutagenesis; prevents ribosomal; mutagenesis prevents ... See more keywords
Ribosomal DNA Instability as a Potential Cause of Karyotype Evolution
Sign Up to like & getrecommendations! Published in 2022 at "Molecular Biology and Evolution"
DOI: 10.1093/molbev/msac221
Abstract: Karyotype refers to the configuration of the genome into a set of chromosomes. The karyotype difference between species is expected to impede various biological processes, such as chromosome segregation or meiotic chromosome pairing, potentially contributing… read more here.
Keywords: ribosomal dna; chromosome; karyotype; karyotype evolution ... See more keywords