Evolution of B Chromosomes: From Dispensable Parasitic Chromosomes to Essential Genomic Players

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985904%3A_____%2F21%3A00551990" target="_blank" >RIV/67985904:_____/21:00551990 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/21:10438863

Result on the web

<a href="https://www.frontiersin.org/articles/10.3389/fgene.2021.727570/full" target="_blank" >https://www.frontiersin.org/articles/10.3389/fgene.2021.727570/full</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3389/fgene.2021.727570" target="_blank" >10.3389/fgene.2021.727570</a>

Result language

angličtina

Original language name

Evolution of B Chromosomes: From Dispensable Parasitic Chromosomes to Essential Genomic Players

Original language description

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 multiple copies in a cell and are usually present only in a subset of individuals in the population. Because B chromosomes frequently show unstable inheritance, their maintenance in a population is often associated with meiotic drive or other mechanisms that increase the probability of their transmission to the next generation. For all these reasons, B chromosomes have been commonly considered to be nonessential, selfish, parasitic elements. Although it was originally believed that B chromosomes had little or no effect on an organism's biology and fitness, a growing number of studies have shown that B chromosomes can play a significant role in processes such as sex determination, pathogenicity and resistance to pathogens. In some cases, B chromosomes became an essential part of the genome, turning into new sex chromosomes or germline-restricted chromosomes with important roles in the organism's fertility. Here, we review such cases of cellular domestication of B chromosomes and show that B chromosomes can be important genomic players with significant evolutionary impact.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology

Project

<a href="/en/project/GA20-23794S" target="_blank" >GA20-23794S: Germline restricted chromosome in songbirds: understanding its origin, function and evolutionary significance</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Frontiers in genetics

ISSN

1664-8021

e-ISSN

1664-8021

Volume of the periodical

12

Issue of the periodical within the volume

DEC 9

Country of publishing house

CH - SWITZERLAND

Number of pages

11

Pages from-to

727570

UT code for WoS article

000738341200001

EID of the result in the Scopus database

2-s2.0-85121715285