The evolutionary divergence of psbA gene in Synechococcus and their myoviruses in the East China Sea.

Marine Synechococcus is a principal component of the picophytoplankton and makes an important contribution to primary productivity in the ocean. Synechophages, infecting Synechococcus, are believed to have significant influences on the distribution and abundance of their hosts. Extensive previous ec...

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Autores principales:	Qiang Zheng, Nianzhi Jiao, Rui Zhang, Jingjing Wei, Fei Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6cf0c5fdfd3b4638a1c4f591a1cc8cea
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spelling	oai:doaj.org-article:6cf0c5fdfd3b4638a1c4f591a1cc8cea2021-11-18T08:36:05ZThe evolutionary divergence of psbA gene in Synechococcus and their myoviruses in the East China Sea.1932-620310.1371/journal.pone.0086644https://doaj.org/article/6cf0c5fdfd3b4638a1c4f591a1cc8cea2014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24466184/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Marine Synechococcus is a principal component of the picophytoplankton and makes an important contribution to primary productivity in the ocean. Synechophages, infecting Synechococcus, are believed to have significant influences on the distribution and abundance of their hosts. Extensive previous ecological studies on cyanobacteria and viruses have been carried out in the East China Sea (ECS). Here we investigate the diversity and divergence of Synechococcus and their myoviruses (Synechomyoviruses) based on their shared photosynthesis psbA gene. Synechococcus is dominated by subclades 5.1A I, 5.1A II and 5.1A IV in the ECS, and clades I and II are the dominant groups in the Synechomyoviruses. As two phylogenetically independent clades, there is much higher diversity of the Synechomyoviruses than Synechococcus. Obvious partitioning characteristics of GC and GC3 (the GC content at the third codon position) contents are obtained among different picophytoplankton populations and their phages. The GC3 content causes the psbA gene in Synechococcus to have a higher GC content, while the opposite is true in the Synechomyoviruses. Analyzing more than one-time difference of the codon usage frequency of psbA sequences, the third position nucleotides of preferred codons for Synechococcus are all G and C, while most Synechomyoviral sequences (72.7%) have A and T at the third position of their preferred codons. This work shed light on the ecology and evolution of phage-host interactions in the environment.Qiang ZhengNianzhi JiaoRui ZhangJingjing WeiFei ZhangPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 1, p e86644 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Qiang Zheng Nianzhi Jiao Rui Zhang Jingjing Wei Fei Zhang The evolutionary divergence of psbA gene in Synechococcus and their myoviruses in the East China Sea.
description	Marine Synechococcus is a principal component of the picophytoplankton and makes an important contribution to primary productivity in the ocean. Synechophages, infecting Synechococcus, are believed to have significant influences on the distribution and abundance of their hosts. Extensive previous ecological studies on cyanobacteria and viruses have been carried out in the East China Sea (ECS). Here we investigate the diversity and divergence of Synechococcus and their myoviruses (Synechomyoviruses) based on their shared photosynthesis psbA gene. Synechococcus is dominated by subclades 5.1A I, 5.1A II and 5.1A IV in the ECS, and clades I and II are the dominant groups in the Synechomyoviruses. As two phylogenetically independent clades, there is much higher diversity of the Synechomyoviruses than Synechococcus. Obvious partitioning characteristics of GC and GC3 (the GC content at the third codon position) contents are obtained among different picophytoplankton populations and their phages. The GC3 content causes the psbA gene in Synechococcus to have a higher GC content, while the opposite is true in the Synechomyoviruses. Analyzing more than one-time difference of the codon usage frequency of psbA sequences, the third position nucleotides of preferred codons for Synechococcus are all G and C, while most Synechomyoviral sequences (72.7%) have A and T at the third position of their preferred codons. This work shed light on the ecology and evolution of phage-host interactions in the environment.
format	article
author	Qiang Zheng Nianzhi Jiao Rui Zhang Jingjing Wei Fei Zhang
author_facet	Qiang Zheng Nianzhi Jiao Rui Zhang Jingjing Wei Fei Zhang
author_sort	Qiang Zheng
title	The evolutionary divergence of psbA gene in Synechococcus and their myoviruses in the East China Sea.
title_short	The evolutionary divergence of psbA gene in Synechococcus and their myoviruses in the East China Sea.
title_full	The evolutionary divergence of psbA gene in Synechococcus and their myoviruses in the East China Sea.
title_fullStr	The evolutionary divergence of psbA gene in Synechococcus and their myoviruses in the East China Sea.
title_full_unstemmed	The evolutionary divergence of psbA gene in Synechococcus and their myoviruses in the East China Sea.
title_sort	evolutionary divergence of psba gene in synechococcus and their myoviruses in the east china sea.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/6cf0c5fdfd3b4638a1c4f591a1cc8cea
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The evolutionary divergence of psbA gene in Synechococcus and their myoviruses in the East China Sea.

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