| Registro completo |
| Provedor de dados: |
Genet. Mol. Biol.
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| País: |
Brazil
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| Título: |
Mitochondrial genome nucleotide substitution pattern between domesticated silkmoth, Bombyx mori, and its wild ancestors, Chinese Bombyx mandarina and Japanese Bombyx mandarina
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| Autores: |
Li,Yu-Ping
Song,Wu
Shi,Sheng-Lin
Liu,Yan-Qun
Pan,Min-Hui
Dai,Fang-Yin
Lu,Cheng
Xiang,Zhong-Huai
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| Data: |
2010-01-01
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| Ano: |
2010
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| Palavras-chave: |
Nucleotide substitution pattern
Mitochondrial genome
Bombyx mori
Chinese Bombyx mandarina
Japanese Bombyx mandarina
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| Resumo: |
Bombyx mori and Bombyx mandarina are morphologically and physiologically similar. In this study, we compared the nucleotide variations in the complete mitochondrial (mt) genomes between the domesticated silkmoth, B. mori, and its wild ancestors, Chinese B. mandarina (ChBm) and Japanese B. mandarina (JaBm). The sequence divergence and transition mutation ratio between B. mori and ChBm are significantly smaller than those observed between B. mori and JaBm. The preference of transition by DNA strands between B. mori and ChBm is consistent with that between B. mori and JaBm, however, the regional variation in nucleotide substitution rate shows a different feature. These results suggest that the ChBm mt genome is not undergoing the same evolutionary process as JaBm, providing evidence for selection on mtDNA. Moreover, investigation of the nucleotide sequence divergence in the A+T-rich region of Bombyx mt genomes also provides evidence for the assumption that the A+T-rich region might not be the fastest evolving region of the mtDNA of insects.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000100031
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| Editor: |
Sociedade Brasileira de Genética
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| Relação: |
10.1590/S1415-47572009005000108
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| Formato: |
text/html
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| Fonte: |
Genetics and Molecular Biology v.33 n.1 2010
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| Direitos: |
info:eu-repo/semantics/openAccess
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