What is a B chromosome? Early definitions revisited.
G3 (Bethesda)
; 14(6)2024 Jun 05.
Article
em En
| MEDLINE
| ID: mdl-38626314
ABSTRACT
Since the discovery of B chromosomes, multiple different definitions of these selfish genetic elements have been put forth. We reconsidered early definitions in light of recently published studies. While there are many characteristics that vary among different B chromosomes, such as their evolutionary origins, size, segregation behaviors, gene content, and function, there is one defining trait of all B chromosomes they are nonessential for the organism. The points raised here may be useful for framing future B chromosome studies and help guide the categorization of new chromosomal elements that are uncovered in genomic studies.
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Base de dados:
MEDLINE
Assunto principal:
Cromossomos
Limite:
Animals
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article