NDLI: Profiling the Transcriptome of Gracilaria changii (Rhodophyta) in Response to Light Deprivation

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Profiling the Transcriptome of Gracilaria changii (Rhodophyta) in Response to Light Deprivation

Content Provider	Springer Nature Link
Author	Ho, Chai Ling Teoh, Seddon Teo, Swee Sen Rahim, Raha Abdul Phang, Siew Moi
Copyright Year	2008
Abstract	Light regulates photosynthesis, growth and reproduction, yield and properties of phycocolloids, and starch contents in seaweeds. Despite its importance as an environmental cue that regulates many developmental, physiological, and biochemical processes, the network of genes involved during light deprivation are obscure. In this study, we profiled the transcriptome of Gracilaria changii at two different irradiance levels using a cDNA microarray containing more than 3,000 cDNA probes. Microarray analysis revealed that 93 and 105 genes were up- and down-regulated more than 3-fold under light deprivation, respectively. However, only 50% of the transcripts have significant matches to the nonredundant peptide sequences in the database. The transcripts that accumulated under light deprivation include vanadium chloroperoxidase, thioredoxin, ferredoxin component, and reduced nicotinamide adenine dinucleotide dehydrogenase. Among the genes that were down-regulated under light deprivation were genes encoding light harvesting protein, light harvesting complex I, phycobilisome 7.8 kDa linker polypeptide, low molecular weight early light-inducible protein, and vanadium bromoperoxidase. Our findings also provided important clues to the functions of many unknown sequences that could not be annotated using sequence comparison.
Starting Page	513
Ending Page	519
Page Count	7
File Format	PDF
ISSN	14362228
Journal	Marine Biotechnology
Volume Number	11
Issue Number	4
e-ISSN	14362236
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-11-29
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	cDNA microarray Irradiance Gracilaria changii Light deprivation Seaweed Engineering Zoology Microbiology Freshwater & Marine Ecology
Content Type	Text
Resource Type	Article
Subject	Aquatic Science Biotechnology

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