Data/hora: 10/06/2024 00:39:03

Provedor de dados: | 74
País: | Brazil
Título: | In silico survey of resistance (R) genes in Eucalyptus transcriptome
Autores: | Barbosa-da-Silva,Adriano; Wanderley-Nogueira,Ana C.; Silva,Raphaela R.M.; Berlarmino,Luiz C.; Soares-Cavalcanti,Nina M.; Benko-Iseppon,Ana M.
Data: | 2005-01-01
Ano: | 2005
Palavras-chave: | Serine-threonine kinase; Nucleotide binding site; Leucine-rich repeats; Gene-for-gene interaction.
Resumo: | A major goal of plant genome research is to recognize genes responsible for important traits. Resistance genes are among the most important gene classes for plant breeding purposes being responsible for the specific immune response including pathogen recognition, and activation of plant defence mechanisms. These genes are quite abundant in higher plants, with 210 clusters found in Eucalyptus FOREST database presenting significant homology to known R-genes. All five gene classes of R-genes with their respective conserved domains are present and expressed in Eucalyptus. Most clusters identified (93) belong to the LRR-NBS-TIR (genes with three domains: Leucine-rich-repeat, Nucleotide-binding-site and Toll interleucine 1-receptor), followed by the serine-threonine-kinase class (49 clusters). Some new combinations of domains and motifs of R-genes may be present in Eucalyptus and could represent novel gene structures. Most alignments occurred with dicots (94.3%), with emphasis on Arabidopsis thaliana (Brassicaceae) sequences. All best alignments with monocots (5.2%) occurred with rice (Oryza sativa) sequences and a single cluster aligned with the gymnosperm Pinus sylvestris (0.5%). The results are discussed and compared with available data from other crops and may bring useful evidences for the understanding of defense mechanisms in Eucalyptus and other crop species.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000400011
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/S1415-47572005000400011
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.28 n.3 suppl.0 2005
Fonte: | info:eu-repo/semantics/openAccess