Data/hora: 03/06/2024 05:10:21

Provedor de dados: | 69
País: | Chile
Título: | Normalized embryoid cDNA library of oil palm (Elaeis guineensis)
Autores: | Chan,Pek-Lan; Ma,Lay-Sun; Low,Eng-Ti L; Shariff,Elyana M; Ooi,Leslie Cheng-Li; Cheah,Suan-Choo; Singh,Rajinder.
Data: | 2010-01-01
Ano: | 2010
Palavras-chave: | Auxin; Expressed sequence tags; Gene expression; Low abundance genes; Tissue culture.
Resumo: | A normalized embryoid cDNA library (EON) was constructed based on reassociation kinetics reaction. Results from dot blot hybridization and sequencing of EON cDNA clones clearly indicated that the normalization process reduced the frequency of high abundance transcripts and increased the frequency of low abundance gene transcripts. A total of 553 non-redundant expressed sequence tags (ESTs) were identified, 325 of these were not observed in the standard oil palm cDNA libraries sequenced previously. A total of 10 EON cDNA clones were chosen for expression profiling across samples from different stages of the tissue culture process. Two of the genes exhibited promising expression patterns for predicting the embryogenic potential in callus. Some of these genes were also differentially expressed in the various tissues of oil palm. This study showed that normalization of the existing embryoid library improved the chances of identifying transcripts not captured in the standard libraries, some of which could be associated with embryogenesis. This collection of ESTs is particularly well suited for use as candidate genes for development of an oil palm DNA chip, which can be used to obtain a more comprehensive view of the molecular mechanism associated with oil palm tissue culture.
Tipo: | Journal article
Idioma: | Inglês
Identificador: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000100010
Editor: | Pontificia Universidad Católica de Valparaíso
Formato: | text/html
Fonte: | Electronic Journal of Biotechnology  v.13 n.1 2010