J 2016

TDM1 Regulation Determines the Number of Meiotic Divisions

CIFUENTES, Marta, Sylvie JOLIVET, Laurence CROMER, Hirofumi HARASHIMA, Petra BULANKOVA et. al.

Basic information

Original name

TDM1 Regulation Determines the Number of Meiotic Divisions

Authors

CIFUENTES, Marta (250 France), Sylvie JOLIVET (250 France), Laurence CROMER (250 France), Hirofumi HARASHIMA (392 Japan), Petra BULANKOVA (40 Austria), Charlotte RENNE (250 France), Wayne CRISMANI (250 France), Yuko NOMURA (392 Japan), Hirofumi NAKAGAMI (392 Japan), Keiko SUGIMOTO (392 Japan), Arp SCHNITTGER (276 Germany), Karel ŘÍHA (203 Czech Republic, guarantor, belonging to the institution) and Raphael MERCIER (250 France)

Edition

PLOS GENETICS, SAN FRANCISCO, PUBLIC LIBRARY SCIENCE, 2016, 1553-7404

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

Genetics and molecular biology

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 6.100

RIV identification code

RIV/00216224:14740/16:00088769

Organization unit

Central European Institute of Technology

UT WoS

000372554100039

Keywords in English

ANAPHASE-PROMOTING COMPLEX/CYCLOSOME; MEIOSIS-II TRANSITION; FISSION YEAST; ARABIDOPSIS; CYCLIN; PROTEINS; APC/C; PROGRESSION; EXPRESSION; INTERKINESIS

Tags

Změněno: 13/3/2017 14:38, Mgr. Eva Špillingová

Abstract

V originále

Cell cycle control must be modified at meiosis to allow two divisions to follow a single round of DNA replication, resulting in ploidy reduction. The mechanisms that ensure meiosis termination at the end of the second and not at the end of first division are poorly understood. We show here that Arabidopsis thaliana TDM1, which has been previously shown to be essential for meiotic termination, interacts directly with the Anaphase-Promoting Complex. Further, mutations in TDM1 in a conserved putative Cyclin-Dependant Kinase (CDK) phosphorylation site (T16-P17) dominantly provoked premature meiosis termination after the first division, and the production of diploid spores and gametes. The CDKA; 1-CYCA1.2/TAM complex, which is required to prevent premature meiotic exit, phosphorylated TDM1 at T16 in vitro. Finally, while CYCA1;2/TAM was previously shown to be expressed only at meiosis I, TDM1 is present throughout meiosis. These data, together with epistasis analysis, lead us to propose that TDM1 is an APC/C component whose function is to ensure meiosis termination at the end of meiosis II, and whose activity is inhibited at meiosis I by CDKA; 1-TAM-mediated phosphorylation to prevent premature meiotic exit. This provides a molecular mechanism for the differential decision of performing an additional round of division, or not, at the end of meiosis I and II, respectively.

Links

GA14-22346S, research and development project
Name: Funkce TDM1 proteinu v meiόze
Investor: Czech Science Foundation