Analysis of whole genome sequences of 16 strains of rubella virus from the United States, 1961–2009
<p>Abstract</p> <p>Rubella virus is the causative agent of rubella, a mild rash illness, and a potent teratogenic agent when contracted by a pregnant woman. Global rubella control programs target the reduction and elimination of congenital rubella syndrome. Phylogenetic analysis of...
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| Format: | Article |
| Language: | English |
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BMC
2013-01-01
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| Series: | Virology Journal |
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| Online Access: | http://www.virologyj.com/content/10/1/32 |
| _version_ | 1818150398735679488 |
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| author | Abernathy Emily Chen Min-hsin Bera Jayati Shrivastava Susmita Kirkness Ewen Zheng Qi Bellini William Icenogle Joseph |
| author_facet | Abernathy Emily Chen Min-hsin Bera Jayati Shrivastava Susmita Kirkness Ewen Zheng Qi Bellini William Icenogle Joseph |
| author_sort | Abernathy Emily |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Rubella virus is the causative agent of rubella, a mild rash illness, and a potent teratogenic agent when contracted by a pregnant woman. Global rubella control programs target the reduction and elimination of congenital rubella syndrome. Phylogenetic analysis of partial sequences of rubella viruses has contributed to virus surveillance efforts and played an important role in demonstrating that indigenous rubella viruses have been eliminated in the United States. Sixteen wild-type rubella viruses were chosen for whole genome sequencing. All 16 viruses were collected in the United States from 1961 to 2009 and are from 8 of the 13 known rubella genotypes. Phylogenetic analysis of 30 whole genome sequences produced a maximum likelihood tree giving high bootstrap values for all genotypes except provisional genotype 1a. Comparison of the 16 new complete sequences and 14 previously sequenced wild-type viruses found regions with clusters of variable amino acids. The 5<sup>′</sup> 250 nucleotides of the genome are more conserved than any other part of the genome. Genotype specific deletions in the untranslated region between the non-structural and structural open reading frames were observed for genotypes 2B and genotype 1G. No evidence was seen for recombination events among the 30 viruses. The analysis presented here is consistent with previous reports on the genetic characterization of rubella virus genomes. Conserved and variable regions were identified and additional evidence for genotype specific nucleotide deletions in the intergenic region was found. Phylogenetic analysis confirmed genotype groupings originally based on structural protein coding region sequences, which provides support for the WHO nomenclature for genetic characterization of wild-type rubella viruses.</p> |
| first_indexed | 2024-12-11T13:22:18Z |
| format | Article |
| id | doaj.art-9b7cce581d2d4170ac6e0b85936591cf |
| institution | Directory Open Access Journal |
| issn | 1743-422X |
| language | English |
| last_indexed | 2024-12-11T13:22:18Z |
| publishDate | 2013-01-01 |
| publisher | BMC |
| record_format | Article |
| series | Virology Journal |
| spelling | doaj.art-9b7cce581d2d4170ac6e0b85936591cf2022-12-22T01:05:44ZengBMCVirology Journal1743-422X2013-01-011013210.1186/1743-422X-10-32Analysis of whole genome sequences of 16 strains of rubella virus from the United States, 1961–2009Abernathy EmilyChen Min-hsinBera JayatiShrivastava SusmitaKirkness EwenZheng QiBellini WilliamIcenogle Joseph<p>Abstract</p> <p>Rubella virus is the causative agent of rubella, a mild rash illness, and a potent teratogenic agent when contracted by a pregnant woman. Global rubella control programs target the reduction and elimination of congenital rubella syndrome. Phylogenetic analysis of partial sequences of rubella viruses has contributed to virus surveillance efforts and played an important role in demonstrating that indigenous rubella viruses have been eliminated in the United States. Sixteen wild-type rubella viruses were chosen for whole genome sequencing. All 16 viruses were collected in the United States from 1961 to 2009 and are from 8 of the 13 known rubella genotypes. Phylogenetic analysis of 30 whole genome sequences produced a maximum likelihood tree giving high bootstrap values for all genotypes except provisional genotype 1a. Comparison of the 16 new complete sequences and 14 previously sequenced wild-type viruses found regions with clusters of variable amino acids. The 5<sup>′</sup> 250 nucleotides of the genome are more conserved than any other part of the genome. Genotype specific deletions in the untranslated region between the non-structural and structural open reading frames were observed for genotypes 2B and genotype 1G. No evidence was seen for recombination events among the 30 viruses. The analysis presented here is consistent with previous reports on the genetic characterization of rubella virus genomes. Conserved and variable regions were identified and additional evidence for genotype specific nucleotide deletions in the intergenic region was found. Phylogenetic analysis confirmed genotype groupings originally based on structural protein coding region sequences, which provides support for the WHO nomenclature for genetic characterization of wild-type rubella viruses.</p>http://www.virologyj.com/content/10/1/32Rubella virusWhole genome |
| spellingShingle | Abernathy Emily Chen Min-hsin Bera Jayati Shrivastava Susmita Kirkness Ewen Zheng Qi Bellini William Icenogle Joseph Analysis of whole genome sequences of 16 strains of rubella virus from the United States, 1961–2009 Virology Journal Rubella virus Whole genome |
| title | Analysis of whole genome sequences of 16 strains of rubella virus from the United States, 1961–2009 |
| title_full | Analysis of whole genome sequences of 16 strains of rubella virus from the United States, 1961–2009 |
| title_fullStr | Analysis of whole genome sequences of 16 strains of rubella virus from the United States, 1961–2009 |
| title_full_unstemmed | Analysis of whole genome sequences of 16 strains of rubella virus from the United States, 1961–2009 |
| title_short | Analysis of whole genome sequences of 16 strains of rubella virus from the United States, 1961–2009 |
| title_sort | analysis of whole genome sequences of 16 strains of rubella virus from the united states 1961 2009 |
| topic | Rubella virus Whole genome |
| url | http://www.virologyj.com/content/10/1/32 |
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