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Construction of cDNA expression library of watermelon for isolation of ClWRKY1 transcription factors gene involved in resistance to Fusarium wilt.
Indian J Biochem Biophys ; 2014 Aug; 51(4): 302-307
Artigo em Inglês | IMSEAR | ID: sea-154252
ABSTRACT
Full-length cDNAs are very important for genome annotation and functional analysis of genes. The number of full-length cDNAs from watermelon remains limited. Here we report first the construction of a full-length enriched cDNA library from Fusarium wilt stressed watermelon (Citrullus lanatus Thunb.) cultivar PI296341 root tissues using the SMART method. The titer of primary cDNA library and amplified library was 2.21 × 106 and 2.0 × 1010 pfu/ml, respectively and the rate of recombinant was above 85%. The size of insert fragment ranged from 0.3 to 2.0 kb. In this study, we first cloned a gene named ClWRKY1, which was 1981 bp long and encoded a protein consisting of 394 amino acids. It contained two characteristic WRKY domains and two zinc finger motifs. Quantitative real-time PCR showed that ClWRKY1 expression levels reached maximum level at 12 h after inoculation with Fusarium oxysporum f. sp. niveum. The full-length cDNA library of watermelon root tissues is not only essential for the cloning of genes which are known, but also an initial key for the screening and cloning of new genes that might be involved in resistance to Fusarium wilt.
Assuntos

Texto completo: DisponíveL Índice: IMSEAR (Sudeste Asiático) Assunto principal: Recombinação Genética / Fatores de Transcrição / Dados de Sequência Molecular / Sequência de Bases / Sequência de Aminoácidos / Homologia de Sequência de Aminoácidos / Genes de Plantas / DNA Complementar / Primers do DNA / RNA de Plantas Idioma: Inglês Revista: Indian J Biochem Biophys Ano de publicação: 2014 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: IMSEAR (Sudeste Asiático) Assunto principal: Recombinação Genética / Fatores de Transcrição / Dados de Sequência Molecular / Sequência de Bases / Sequência de Aminoácidos / Homologia de Sequência de Aminoácidos / Genes de Plantas / DNA Complementar / Primers do DNA / RNA de Plantas Idioma: Inglês Revista: Indian J Biochem Biophys Ano de publicação: 2014 Tipo de documento: Artigo