Genetic diversity and evolution of satellite RNAs associated with the bamboo mosaic virus.

Satellite RNAs (satRNAs) are subviral agents that depend on cognate helper viruses for genome replication and encapsidation. Their negative impacts on helper viruses have been exploited to control plant viral diseases. SatBaMV is a commonly found satRNA associated with Bamboo mosaic virus (BaMV) tha...

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Autores principales:	Ing-Nang Wang, Chung-Chi Hu, Ching-Wei Lee, Sih-Min Yen, Wen-Bing Yeh, Yau-Heiu Hsu, Na-Sheng Lin
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9640b492836246f5a96495c52c7f04fd
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spelling	oai:doaj.org-article:9640b492836246f5a96495c52c7f04fd2021-11-25T05:58:09ZGenetic diversity and evolution of satellite RNAs associated with the bamboo mosaic virus.1932-620310.1371/journal.pone.0108015https://doaj.org/article/9640b492836246f5a96495c52c7f04fd2014-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0108015https://doaj.org/toc/1932-6203Satellite RNAs (satRNAs) are subviral agents that depend on cognate helper viruses for genome replication and encapsidation. Their negative impacts on helper viruses have been exploited to control plant viral diseases. SatBaMV is a commonly found satRNA associated with Bamboo mosaic virus (BaMV) that infects diverse bamboo species in the field. To investigate the genetic diversity and evolution of satRNAs, we examined seven satBaMV populations derived from five bamboo species and cultivars from Taiwan, China, and India and one from the greenhouse. We found 3 distinct clades among the seven populations. Clade I is consisted of all satBaMV isolates, except for those from Dendrocalamus latiflorus in Taiwan and Bambusa vulgaris in India, which belong to Clades II and III, respectively. Interestingly, nucleotide diversity was lower for Clade I than II and III. However, the nucleotide diversity did not seem to depend on bamboo species or geographic location. Our population genetic analyses revealed the presence of excessive low-frequency polymorphic sites, which suggests that the satBaMV population was under purifying selection and/or population expansion. Further analysis of P20, the only satBaMV gene that encodes a non-structural protein involved in the long-distance movement of satBaMV, showed evidence of purifying selection. Taken together, our results suggest that purifying selection against defective P20 protein is responsible at least in part for the evolution of the satBaMV genome.Ing-Nang WangChung-Chi HuChing-Wei LeeSih-Min YenWen-Bing YehYau-Heiu HsuNa-Sheng LinPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 9, p e108015 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ing-Nang Wang Chung-Chi Hu Ching-Wei Lee Sih-Min Yen Wen-Bing Yeh Yau-Heiu Hsu Na-Sheng Lin Genetic diversity and evolution of satellite RNAs associated with the bamboo mosaic virus.
description	Satellite RNAs (satRNAs) are subviral agents that depend on cognate helper viruses for genome replication and encapsidation. Their negative impacts on helper viruses have been exploited to control plant viral diseases. SatBaMV is a commonly found satRNA associated with Bamboo mosaic virus (BaMV) that infects diverse bamboo species in the field. To investigate the genetic diversity and evolution of satRNAs, we examined seven satBaMV populations derived from five bamboo species and cultivars from Taiwan, China, and India and one from the greenhouse. We found 3 distinct clades among the seven populations. Clade I is consisted of all satBaMV isolates, except for those from Dendrocalamus latiflorus in Taiwan and Bambusa vulgaris in India, which belong to Clades II and III, respectively. Interestingly, nucleotide diversity was lower for Clade I than II and III. However, the nucleotide diversity did not seem to depend on bamboo species or geographic location. Our population genetic analyses revealed the presence of excessive low-frequency polymorphic sites, which suggests that the satBaMV population was under purifying selection and/or population expansion. Further analysis of P20, the only satBaMV gene that encodes a non-structural protein involved in the long-distance movement of satBaMV, showed evidence of purifying selection. Taken together, our results suggest that purifying selection against defective P20 protein is responsible at least in part for the evolution of the satBaMV genome.
format	article
author	Ing-Nang Wang Chung-Chi Hu Ching-Wei Lee Sih-Min Yen Wen-Bing Yeh Yau-Heiu Hsu Na-Sheng Lin
author_facet	Ing-Nang Wang Chung-Chi Hu Ching-Wei Lee Sih-Min Yen Wen-Bing Yeh Yau-Heiu Hsu Na-Sheng Lin
author_sort	Ing-Nang Wang
title	Genetic diversity and evolution of satellite RNAs associated with the bamboo mosaic virus.
title_short	Genetic diversity and evolution of satellite RNAs associated with the bamboo mosaic virus.
title_full	Genetic diversity and evolution of satellite RNAs associated with the bamboo mosaic virus.
title_fullStr	Genetic diversity and evolution of satellite RNAs associated with the bamboo mosaic virus.
title_full_unstemmed	Genetic diversity and evolution of satellite RNAs associated with the bamboo mosaic virus.
title_sort	genetic diversity and evolution of satellite rnas associated with the bamboo mosaic virus.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/9640b492836246f5a96495c52c7f04fd
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Genetic diversity and evolution of satellite RNAs associated with the bamboo mosaic virus.

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