RESUMO

BACKGROUND: Hevea brasiliensis, a member of the Euphorbiaceae family, is the major commercial source of natural rubber (NR). NR is a latex polymer with high elasticity, flexibility, and resilience that has played a critical role in the world economy since 1876. RESULTS: Here, we report the draft genome sequence of H. brasiliensis. The assembly spans ~1.1 Gb of the estimated 2.15 Gb haploid genome. Overall, ~78% of the genome was identified as repetitive DNA. Gene prediction shows 68,955 gene models, of which 12.7% are unique to Hevea. Most of the key genes associated with rubber biosynthesis, rubberwood formation, disease resistance, and allergenicity have been identified. CONCLUSIONS: The knowledge gained from this genome sequence will aid in the future development of high-yielding clones to keep up with the ever increasing need for natural rubber.

Assuntos

Genômica , Hevea/genética , Análise de Sequência , Alérgenos/genética , Resistência à Doença/genética , Evolução Molecular , Proteínas F-Box/genética , Genoma de Planta/genética , Haploidia , Hevea/imunologia , Hevea/metabolismo , Látex/metabolismo , Anotação de Sequência Molecular , Filogenia , Reguladores de Crescimento de Plantas/genética , Borracha/metabolismo , Transdução de Sinais/genética , Fatores de Transcrição/genética , Madeira/metabolismo