Abstract

Genome replication mapping methods profile cell populations, masking cell-to-cell heterogeneity. Here, we describe FORK-seq, a nanopore sequencing method to map replication of single DNA molecules at 200-nucleotide resolution. By quantifying BrdU incorporation along pulse-chased replication intermediates from Saccharomyces cerevisiae, we orient 58,651 replication tracks reproducing population-based replication directionality profiles and map 4964 and 4485 individual initiation and termination events, respectively. Although most events cluster at known origins and fork merging zones, 9% and 18% of initiation and termination events, respectively, occur at many locations previously missed. Thus, FORK-seq reveals the full extent of cell-to-cell heterogeneity in DNA replication.

Details

Title
FORK-seq: replication landscape of the Saccharomyces cerevisiae genome by nanopore sequencing
Author
Hennion, Magali; Arbona, Jean-Michel; Lacroix, Laurent; Cruaud, Corinne; Theulot, Bertrand; Benoît Le Tallec; Proux, Florence; Wu, Xia; Novikova, Elizaveta; Engelen, Stefan; Lemainque, Arnaud; Audit, Benjamin; Hyrien, Olivier
Pages
1-25
Section
Method
Publication year
2020
Publication date
2020
Publisher
BioMed Central
ISSN
14747596
e-ISSN
1474760X
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2414833386
Copyright
© 2020. This work is licensed under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.