Unravelling the unusual: chromosome elimination, nondisjunction and extra pollen mitosis characterize the B chromosome in wild sorghum

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F24%3A00600788" target="_blank" >RIV/61389030:_____/24:00600788 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15310/24:73626906

Result on the web

<a href="https://doi.org/10.1111/nph.19954" target="_blank" >https://doi.org/10.1111/nph.19954</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/nph.19954" target="_blank" >10.1111/nph.19954</a>

Result language

angličtina

Original language name

Unravelling the unusual: chromosome elimination, nondisjunction and extra pollen mitosis characterize the B chromosome in wild sorghum

Original language description

The B chromosomes exhibit diverse behaviour compared with conventional genetic models. The capacity of the B chromosome either to accumulate or to be eliminated in a tissue-specific manner is dependent on biological processes related to aberrant cell division(s), but here yet remains compatible with normal development. We studied B chromosome elimination in Sorghum purpureosericeum embryos through cryo-sections and demonstrated the B chromosome instability during plant growth using flow cytometry, molecular markers and fluorescent in situ hybridization techniques. Consequently, using B chromosome-specific probes we revealed the non-Mendelian inheritance of B chromosomes in developing pollen. We disclosed that the occurrence of the B chromosome is specific to certain tissues or organs. The distribution pattern is mainly caused by an extensive elimination that functions primarily during embryo development and persists throughout plant development. Furthermore, we described that B chromosome accumulation can occur either by nondisjunction at first pollen mitosis (PMI) or the initiation of extra nuclear division(s) during pollen development. Our study demonstrates the existence of a not-yet-fully described B chromosome drive process, which is likely under the control of the B chromosome.

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

10603 - Genetics and heredity (medical genetics to be 3)

Project

<a href="/en/project/GA22-02108S" target="_blank" >GA22-02108S: Elimination of the B chromosome in Sorghum purpureosericeum</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

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

Name of the periodical

New Phytologist

ISSN

0028-646X

e-ISSN

1469-8137

Volume of the periodical

243

Issue of the periodical within the volume

5

Country of publishing house

GB - UNITED KINGDOM

Number of pages

15

Pages from-to

1840-1854

UT code for WoS article

001271133900001

EID of the result in the Scopus database

2-s2.0-85198661574