Nuclear DNA content and karyotype of Rosewood (Aniba rosaeodora)
Rosewood (Aniba rosaeodora Ducke, Lauraceae) is ecologically and economically important to the Amazon region. As a consequence of its economic importance, rosewood populations have been decimated in the Amazon forest. Species of nine genera of the Lauraceae family have characterized karyotypes with...
| Autor principal: | Contim, Luis Antonio Serrao |
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| Outros Autores: | Carvalho, Carlos Roberto de, Martins, Franciele Alline, Freitas, Danival Vieira de |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Genetics and Molecular Biology
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/14966 |
| Resumo: |
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Rosewood (Aniba rosaeodora Ducke, Lauraceae) is ecologically and economically important to the Amazon region. As a consequence of its economic importance, rosewood populations have been decimated in the Amazon forest. Species of nine genera of the Lauraceae family have characterized karyotypes with n = × = 12 chromosomes in the gametophytic phase but the genus Aniba is one of the least studied Lauraceae genera with a previously undescribed genome. We used cytogenetic techniques to determine that the A. rosaeodora karyotype contained 12 pairs (2n=24) of relatively small submetacentric chromosomes with lengths ranging from 1.34 to 2.25 μm and a nucleolar organizer region (NOR) in the short arm of chromosome 7. Flow cytometry gave 2C=2.32 pg of DNA, equivalent to approximately 2.24 × 109 base pairs. Copyright by the Brazilian Society of Genetics. |