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   Preliminary study on expressed sequence tags (ESTs) of papaya, pineapple and pummelo  
   
نویسنده Sew Y.S. ,Maheswary V. ,Noor Suhana A. ,Hayati A. ,Zulkifli A.S. ,Umi Kalsom A.B.
منبع journal of tropical agriculture and food science - 2008 - دوره : 36 - شماره : 2 - صفحه:249 -257
چکیده    A small scale expressed sequence tags (ests) were studied on papaya (carica papaya var. eksotika 2), pineapple (ananas comosus var. gandul) and pummelo (citrus grandis var. melomas). single pass sequencing was performed on 960 randomly selected papaya cdna clones, 1,440 pineapple cdna clones and 547 pummelo cdna clones. clustering and assembly of qualified ests revealed 107,178 and 48 tentative unique contigs, and 347, 301 and 302 tentative unique singletons of papaya, pineapple and pummelo, respectively. homology search of these qualified ests resulted in 76.5% having significant matches (e-value≤10 ^-10) to previously identified and registered proteins in the non-redundant database (genbank). the ests sequences that are matching to genbank nucleic acid database were further classified into 12 functional categories based on munice information center for protein sequences (mips) classification. from this preliminary ests study, various genes that involved in cell rescue and defence, stress response as well as fruit ripening process were identified. inaddition, about 15-31 % of ests showed no homology with the registered protein in genbank and their functions need to be further studied. the generated est databases can be a potential source for comparative and functional genomic studies utilizing bioinformatics.
کلیدواژه expressed sequence tags (ESTs) ,papaya ,pineapple ,pummelo
آدرس MARDI Headquarters, Biotechnology Research Centre, Malaysia, MARDI Headquarters, Biotechnology Research Centre, Malaysia, MARDI Headquarters, Biotechnology Research Centre, Malaysia, MARDI Headquarters, Biotechnology Research Centre, Malaysia, MARDI Headquarters, Biotechnology Research Centre, Malaysia, MARDI Headquarters, Biotechnology Research Centre, Malaysia
پست الکترونیکی sewyshin@mardi.gov.my
 
     
   
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