Characterization of Expressed Sequence Tags from Flower Buds of Alpine Lilium formosanum using a Subtractive cDNA Library

NCUIR > college of Health Sciences and Technology > Department of Life Science > journal & Dissertation > Item 987654321/50807

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/50807

Title:	Characterization of Expressed Sequence Tags from Flower Buds of Alpine Lilium formosanum using a Subtractive cDNA Library
Authors:	Wang,WK;Liu,CC;Chiang,TY;Chen,MT;Chou,CH;Yeh,CH
Contributors:	生命科學系
Keywords:	LIPID-TRANSFER PROTEIN;ENVIRONMENTAL-STRESSES;ASCORBATE PEROXIDASE;LOTUS-JAPONICUS;GENE FAMILY;IDENTIFICATION;PLANTS;ARABIDOPSIS;CONFIDENCE;GENERATION
Date:	2011
Issue Date:	2012-03-27 18:10:29 (UTC+8)
Publisher:	國立中央大學
Abstract:	Formosan lily (Lilium formosanum), a species endemic in Taiwan, is characterized by showy and fragrant flowers. To understand the gene expression at its reproductive phase, we constructed a suppression subtractive cDNA library of immature flower buds, from which 1,324 expressed sequence tags (ESTs) were randomly selected and sequenced. These EST sequences were clustered into 974 nonredundant sequences. Based on BLAST searching, functions of 376 sequences (39%) were determined, and 80 sequences showed high similarities to genes encoding hypothetical proteins without known functions. Another 518 sequences did not show significant homology to any known sequences and were therefore classified as novel sequences. Further analyses of the 376 ESTs sequences revealed high abundance of stress-related and flower-development genes. The highly expressing stress-related transcripts include 39 with high similarities to lipid transfer proteins, five to ascorbate peroxidases, and five to heat shock proteins 70. Using real-time quantitative RT-PCR analysis, we further revealed the expression of these three genes in the immature flower buds and in the pistils or stamens of the blooming flower of Formosan lily collected from alpine regions. These results suggest that the flower of L. formosanum possesses a significantly elevated level of stress genes in response to alpine environment and the ESTs analyzed here represent a valuable resource for studying a resistance mechanism of the reproductive organs of Formosan lily.
Relation:	PLANT MOLECULAR BIOLOGY REPORTER
Appears in Collections:	[Department of Life Science] journal & Dissertation

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	636	View/Open

社群 sharing

Loading...