Keywords: evolution meiotic drive supernumerary chromosome

Evolution of B Chromosomes: From Dispensable Parasitic Chromosomes to Essential Genomic Players M. Johnson Pokorná and R. Reifová,  Frontiers in Genetics,  12:727570. 2021. B chromosomes represent additional chromosomes found in many eukaryotic organisms. Their origin is not completely understood but recent genomic studies suggest that they mostly arise through rearrangements and duplications from standard chromosomes. They can occur in single or ... Keywords: b-chromosome, evolution meiotic drive supernumerary chromosome, review