Identification of chilling-responsive transcripts in peanut (Arachis hypogaea L.)



Document title: Identification of chilling-responsive transcripts in peanut (Arachis hypogaea L.)
Journal: Electronic journal of biotechnology
Database: PERIÓDICA
System number: 000358226
ISSN: 0717-3458
Authors: 1
2
1
3
3
3
2
4
2
2
Institutions: 1Ocean University of China, College of Marine Life Sciences, Qingdao, Shandong. China
2Shandong Peanut Research Institute, Qingdao, Shandong. China
3Jilin Academy of Agricultural Sciences, Institute of Economic Plants, Gongzhuling, Jilin. China
4Zhengzhou Tobacco Research Institute of CNTC, China Tobacco Gene Research Center, Zhengzhou, Henan. China
Year:
Volumen: 14
Number: 5
Country: Chile
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract To isolate differentially expressed peanut genes responsive to chilling, a suppression subtractive hybridization (SSH) cDNA library was constructed for a chilling tolerant peanut cultivar A4 with mRNAs extracted from the seeds imbibed at 2ºC and 15ºC, respectively, for 24 hrs. A total of 466 cDNA clones were sequenced, from which 193 unique transcripts (73 contigs and 120 singlets) were assembled. Of these unique transcripts, 132 (68.4%) were significantly similar to the sequences in GenBank non-redundant (nr) protein database, which belonged to diverse functional categories including metabolism, signal transduction, stress response, cell defense and transcriptional regulation. The remaining 61 (31.6%) showed no similarity to either hypothetical or known proteins. Six differentially expressed transcripts were further confirmed with real-time quantitative PCR (RT-qPCR)
Disciplines: Biología
Keyword: Fisiología vegetal,
Genética,
Biotecnología,
Tolerancia al frío,
Congelación,
Respuesta fisiológica,
Expresión génica,
Cacahuate,
Arachis hypogaea
Keyword: Biology,
Genetics,
Plant physiology,
Biotechnology,
Cold tolerance,
Chilling,
Physiological response,
Gene expression,
Peanut,
Arachis hypogaea
Full text: Texto completo (Ver HTML)