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Expressed sequence tag analysis and annotation of genetic information from the freshwater clam, Pisidium (Neopisidium) coreanum endemic to Korea

Authors
Jeong, Ji EunKang, Se WonHwang, Hee-JuPark, So YoungPatnaik, Bharat BhusanKim, ChangmuKim, SoonokNam, Myung-MoLee, Jae BongWang, Tae HunPark, Eun BiYi, Sun ShinHan, Yeon SooLee, Jun-SangPark, Hong SeogLee, Yong Seok
Issue Date
Dec-2015
Publisher
한국유전학회
Keywords
Pisidium (Neopisidium) coreanum; Endemic species; Expressed sequence tags; Functional annotation; Bone morphogenetic proteins
Citation
Genes & Genomics, v.37, no.12, pp 1041 - 1049
Pages
9
Journal Title
Genes & Genomics
Volume
37
Number
12
Start Page
1041
End Page
1049
URI
https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/10111
DOI
10.1007/s13258-015-0345-7
ISSN
1976-9571
2092-9293
Abstract
Pisidium (Neopisidium) coreanum is a freshwater clam endemic to Korea. It has been classified as a vulnerable bivalve by the Korean Red List of threatened species and there exist no regional conservation measures. In the present study, we made an attempt to study the expressed sequence tags (ESTs) from the clam species for elucidating genomic information through the annotation of essential genes. A high-quality cDNA library was constructed from the whole body tissue of Pisidium coreanum yielding a collection of 5760 clones. The sequencing of the resultant clones identified 5656 ESTs assembled into 1312 non-redundant sequences, comprising of 791 contigs and 521 singletons. We identified 3265 and 3314 EST sequences showing significant matches (E value < 1e-5) to known sequences in the mollusks sequence database (Malacological Society of Korea) and the NCBI non-redundant database, respectively. A total of 1674 putative sequences showed significant matches (E value of 1e-10) with the National Centre for Biotechnology Information-Eukaryotic Clusters of Orthologous Groups (NCBI KOG) database. These sequences were successfully assigned to classified biological processes including translation, ribosomal structure and biogenesis (18.61 %), post-translational modification, protein turnover and chaperones (13.29 %), energy production and conversion (13.86 %), cytoskeleton (12.78 %), and signal transduction mechanisms (7.15 %). Furthermore, we identified 16 transcripts showing high homology with bone morphogenetic protein 2-B that could pave an advancement towards bone therapeutics development.
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