Satellite DNA: an evolving topic

MA Garrido-Ramos - Genes, 2017 - mdpi.com
Satellite DNA represents one of the most fascinating parts of the repetitive fraction of the
eukaryotic genome. Since the discovery of highly repetitive tandem DNA in the 1960s, a lot …

The modern view of B chromosomes under the impact of high scale omics analyses

SF Ahmad, C Martins - Cells, 2019 - mdpi.com
Supernumerary B chromosomes (Bs) are extra karyotype units in addition to A
chromosomes, and are found in some fungi and thousands of animals and plant species. Bs …

Origin and Evolution of B Chromosomes in the Cichlid Fish Astatotilapia latifasciata Based on Integrated Genomic Analyses

GT Valente, MA Conte, BEA Fantinatti… - Molecular biology …, 2014 - academic.oup.com
Approximately 15% of eukaryotes contain supernumerary B chromosomes. When present, B
chromosomes frequently represent as much as 5% of the genome. Despite thousands of …

Delimiting the Origin of a B Chromosome by FISH Mapping, Chromosome Painting and DNA Sequence Analysis in Astyanax paranae (Teleostei, Characiformes)

DMZA Silva, JC Pansonato-Alves, R Utsunomia… - PloS one, 2014 - journals.plos.org
Supernumerary (B) chromosomes have been shown to contain a wide variety of repetitive
sequences. For this reason, fluorescent in situ hybridisation (FISH) is a useful tool for …

B chromosome contains active genes and impacts the transcription of A chromosomes in maize (Zea mays L.)

W Huang, Y Du, X Zhao, W Jin - BMC Plant Biology, 2016 - Springer
Abstract Background The dispensable maize (Zea mays L.) B chromosome is highly
heterochromatic and widely believed to be devoid of functional genes. Although low-copy B …

Genes on B chromosomes: old questions revisited with new tools

AM Banaei-Moghaddam, MM Martis, J Macas… - … et Biophysica Acta (BBA …, 2015 - Elsevier
Background B chromosomes are supernumerary dispensable parts of the karyotype which
appear in some individuals of some populations in some species. Often, they have been …

B chromosomes: from cytogenetics to systems biology

GT Valente, RT Nakajima, BEA Fantinatti, DF Marques… - Chromosoma, 2017 - Springer
Though hundreds to thousands of reports have described the distribution of B chromosomes
among diverse eukaryote groups, a comprehensive theory of their biological role has not yet …

B chromosomes of multiple species have intense evolutionary dynamics and accumulated genes related to important biological processes

SF Ahmad, M Jehangir, AL Cardoso, IR Wolf… - BMC genomics, 2020 - Springer
Background One of the biggest challenges in chromosome biology is to understand the
occurrence and complex genetics of the extra, non-essential karyotype elements, commonly …

Protein-coding genes in B chromosomes of the grasshopper Eyprepocnemis plorans

B Navarro-Domínguez, FJ Ruiz-Ruano, J Cabrero… - Scientific Reports, 2017 - nature.com
For many years, parasitic B chromosomes have been considered genetically inert elements.
Here we show the presence of ten protein-coding genes in the B chromosome of the …

Uncovering the Ancestry of B Chromosomes in Moenkhausia sanctaefilomenae (Teleostei, Characidae)

R Utsunomia, DMZA Silva, FJ Ruiz-Ruano… - PLoS …, 2016 - journals.plos.org
B chromosomes constitute a heterogeneous mixture of genomic parasites that are
sometimes derived intraspecifically from the standard genome of the host species, but result …