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Analysis of expressed sequence tags from the agarophyte Gracilaria tenuistipitata (Rhodophyta)
Stockholm University, Faculty of Science, Department of Botany.
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2012 (English)In: Journal of Applied Phycology, ISSN 0921-8971, E-ISSN 1573-5176, Vol. 24, no 4, 641-647 p.Article in journal (Refereed) Published
Abstract [en]

A total of 3,631 expressed sequence tags (ESTs) were established from two size-selected cDNA libraries made from the tetrasporophytic phase of the agarophytic red alga Gracilaria tenuistipitata. The average sizes of the inserts in the two libraries were 1,600 bp and 600 bp, with an average length of the edited sequences of 850 bp. Clustering gave 2,387 assembled sequences with a redundancy of 53%. Of the ESTs, 65% had significant matches to sequences deposited in public databases, 11% to proteins without known function, and 35% were novel. The most represented ESTs were a Na/K-transporting ATPase, a hedgehog-like protein, a glycine dehydrogenase and an actin. Most of the identified genes were involved in primary metabolism and housekeeping. The largest functional group was thus genes involved in metabolism with 14% of the ESTs; other large functional categories included energy, transcription, and protein synthesis and destination. The codon usage was examined using a subset of the data, and the codon bias was found to be limited with all codon combinations used.

Place, publisher, year, edition, pages
2012. Vol. 24, no 4, 641-647 p.
Keyword [en]
Agarophyte, Codon bias, Expressed sequence tags, Gracilaria tenuistipitata, Rhodophyta
National Category
Agricultural Biotechnology
URN: urn:nbn:se:su:diva-80614DOI: 10.1007/s10811-011-9681-4ISI: 000306219900002OAI: diva2:556512


Available from: 2012-09-25 Created: 2012-09-25 Last updated: 2012-09-25Bibliographically approved

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