Article
Long-term persistence of supernumerary B chromosomes in multiple species of Astyanax fish.
BMC biology - 19 Mar 2021
Silva Duílio Mazzoni Zerbinato de Andrade, Ruiz-Ruano Francisco J, Utsunomia Ricardo, Martín-Peciña María, Castro Jonathan Pena, Freire Paula Paccielli, Carvalho Robson Francisco, Hashimoto Diogo T, Suh Alexander, Oliveira Claudio, Porto-Foresti Fábio, Artoni Roberto Ferreira, Foresti Fausto, Camacho Juan Pedro M
Abstract excerpt
BACKGROUND: Eukaryote genomes frequently harbor supernumerary B chromosomes in addition to the "standard" A chromosome set. B chromosomes are thought to arise as byproducts of genome rearrangements and have mostly been considered intraspecific oddities. However, their evolutionary transcendence beyond species level has remained untested. RESULTS: Here we reveal that the large metacentric B chromosomes reported in...
Topics
- Animals
- Characidae
- Chromosome Mapping
- Chromosomes
- Female
- Genome
- Male
- Polymorphism, Single Nucleotide
- Species Specificity