Peer Review History

Original SubmissionApril 3, 2024
Decision Letter - D. Scott Samuels, Editor, Patrick Secor, Editor

Dear Ms Maier,

Thank you very much for submitting your manuscript "Pseudo-pac site sequences used by phage P22 in generalized transduction of Salmonella" for consideration at PLOS Pathogens. Your manuscript was reviewed by members of the editorial board and by two independent reviewers. The reviewers appreciated the attention to an important topic. Based on the reviews, we are likely to accept this manuscript for publication, providing that you modify the manuscript according to the review recommendations.

Specifically, you need to address the issues noted with figure quality/resolution and sequence data availability for strain 14028S.

Please prepare and submit your revised manuscript within 30 days. If you anticipate any delay, please let us know the expected resubmission date by replying to this email.

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[2] Two versions of the revised manuscript: one with either highlights or tracked changes denoting where the text has been changed; the other a clean version (uploaded as the manuscript file).

Important additional instructions are given below your reviewer comments.

Thank you again for your submission to our journal. We hope that our editorial process has been constructive so far, and we welcome your feedback at any time. Please don't hesitate to contact us if you have any questions or comments.

Sincerely,

Patrick Secor

Guest Editor

PLOS Pathogens

D. Scott Samuels

Section Editor

PLOS Pathogens

Michael Malim

Editor-in-Chief

PLOS Pathogens

orcid.org/0000-0002-7699-2064

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Reviewer Comments (if any, and for reference):

Reviewer's Responses to Questions

Part I - Summary

Please use this section to discuss strengths/weaknesses of study, novelty/significance, general execution and scholarship.

Reviewer #1: The manuscript by Maier et al. is well written and answers an important question regarding what kind of host DNA sequences does P22 package. Based on analyzing the sequence reads from P22 genome sequencing data the authors were able to detect sequences that can act as pseudo-pac sites. Further, the predicted consensus sequence was refined by analyzing genome sequencing data of P22 on a different host. I have two minor issues that I would the authors to address to improve the presenation, rigor and reproducibility of the data.

Reviewer #2: This study focuses on the detection of pseudo-pac site sequences from Salmonella enterica Serovar Typhimurium. The team used existing sequencing data to identify where the pseudo-pac site facilitated LT2 genome packaging. These discovered sites were then used to identify those of another strain 14028S.

The method used to identify pseudo-pac sites is convincing, and several articles have already described the phenomenon of over-coverage. One way of improving would be to propose a method of defining consensus other than trial and error. However this would require a change of scale, with the analysis of data from a large number of phages and hosts.

Validation of the in vitro results proposed by the authors using a plasmid is a good way forward and I hope to see these results in a future article.

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Part II – Major Issues: Key Experiments Required for Acceptance

Please use this section to detail the key new experiments or modifications of existing experiments that should be absolutely required to validate study conclusions.

Generally, there should be no more than 3 such required experiments or major modifications for a "Major Revision" recommendation. If more than 3 experiments are necessary to validate the study conclusions, then you are encouraged to recommend "Reject".

Reviewer #1: None

Reviewer #2: No major modification

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Part III – Minor Issues: Editorial and Data Presentation Modifications

Please use this section for editorial suggestions as well as relatively minor modifications of existing data that would enhance clarity.

Reviewer #1: The quality of the figures and the way they are presented. The figures are very pixelated and may be a better representation of the read abundance through out the genome will be make the impact of the paper more evident.

Is the illumina sequencing data for 14028S strain published ? If so please include a reference and if not please mention how it was done.

Reviewer #2: As a non-native English speaker, I can't comment on the English, but it seems perfectly comprehensible to me.

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Reviewer #1: No

Reviewer #2: No

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Revision 1

Attachments
Attachment
Submitted filename: Response_to_reviewers_FINAL.pdf
Decision Letter - D. Scott Samuels, Editor, Patrick Secor, Editor

Dear Ms Maier,

We are pleased to inform you that your manuscript 'Pseudo-pac site sequences used by phage P22 in generalized transduction of Salmonella' has been provisionally accepted for publication in PLOS Pathogens.

Before your manuscript can be formally accepted you will need to complete some formatting changes, which you will receive in a follow up email. A member of our team will be in touch with a set of requests.

Please note that your manuscript will not be scheduled for publication until you have made the required changes, so a swift response is appreciated.

IMPORTANT: The editorial review process is now complete. PLOS will only permit corrections to spelling, formatting or significant scientific errors from this point onwards. Requests for major changes, or any which affect the scientific understanding of your work, will cause delays to the publication date of your manuscript.

Should you, your institution's press office or the journal office choose to press release your paper, you will automatically be opted out of early publication. We ask that you notify us now if you or your institution is planning to press release the article. All press must be co-ordinated with PLOS.

Thank you again for supporting Open Access publishing; we are looking forward to publishing your work in PLOS Pathogens.

Best regards,

Patrick Secor

Guest Editor

PLOS Pathogens

D. Scott Samuels

Section Editor

PLOS Pathogens

Michael Malim

Editor-in-Chief

PLOS Pathogens

orcid.org/0000-0002-7699-2064

***********************************************************

Reviewer Comments (if any, and for reference):

Formally Accepted
Acceptance Letter - D. Scott Samuels, Editor, Patrick Secor, Editor

Dear Ms Maier,

We are delighted to inform you that your manuscript, "Pseudo-pac site sequences used by phage P22 in generalized transduction of Salmonella," has been formally accepted for publication in PLOS Pathogens.

We have now passed your article onto the PLOS Production Department who will complete the rest of the pre-publication process. All authors will receive a confirmation email upon publication.

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Soon after your final files are uploaded, the early version of your manuscript, if you opted to have an early version of your article, will be published online. The date of the early version will be your article's publication date. The final article will be published to the same URL, and all versions of the paper will be accessible to readers.

Thank you again for supporting open-access publishing; we are looking forward to publishing your work in PLOS Pathogens.

Best regards,

Michael Malim

Editor-in-Chief

PLOS Pathogens

orcid.org/0000-0002-7699-2064

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