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Title: Prevalence of Viral Frequency-Dependent Infection in Coastal Marine Prokaryotes Revealed Using Monthly Time Series Virome Analysis
Authors: Tominaga, Kento
Ogawa-Haruki, Nana
Nishimura, Yosuke
Watai, Hiroyasu
Yamamoto, Keigo
Ogata, Hiroyuki  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0001-6594-377X (unconfirmed)
Yoshida, Takashi  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0002-5257-0617 (unconfirmed)
Author's alias: 富永, 賢人
晴気, 七菜
西村, 陽介
綿井, 博康
山本, 圭吾
緒方, 博之
吉田, 天士
Keywords: frequency-dependent selection
K/r strategy
marine prokaryotes
marine viruses
virome
Issue Date: 23-Feb-2023
Publisher: American Society for Microbiology
Journal title: mSystems
Volume: 8
Issue: 1
Thesis number: e00931-22
Abstract: Viruses infecting marine prokaryotes have a large impact on the diversity and dynamics of their hosts. Model systems suggest that viral infection is frequency dependent and constrained by the virus-host encounter rate. However, it is unclear whether frequency-dependent infection is pervasive among the abundant prokaryotic populations with different temporal dynamics. To address this question, we performed a comparison of prokaryotic and viral communities using 16S rRNA amplicon and virome sequencing based on samples collected monthly for 2 years at a Japanese coastal site, Osaka Bay. Concurrent seasonal shifts observed in prokaryotic and viral community dynamics indicated that the abundance of viruses correlated with that of their predicted host phyla (or classes). Cooccurrence network analysis between abundant prokaryotes and viruses revealed 6, 423 cooccurring pairs, suggesting a tight coupling of host and viral abundances and their “one-to-many” correspondence. Although stable dominant species, such as SAR11, showed few cooccurring viruses, a fast succession of their viruses suggests that viruses infecting these populations changed continuously. Our results suggest that frequency-dependent viral infection prevails in coastal marine prokaryotes regardless of host taxa and temporal dynamics.
Description: 海洋微生物も”密”ならウイルスに感染する --頻度依存的なウイルス感染を大阪湾で実証--. 京都大学プレスリリース. 2023-02-24.
Rights: © 2023 Tominaga et al.
This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license.
URI: http://hdl.handle.net/2433/279505
DOI(Published Version): 10.1128/msystems.00931-22
PubMed ID: 36722950
Related Link: https://www.kyoto-u.ac.jp/ja/research-news/2023-02-24-4
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