Genome of Tenualosa ilisha from the river Padma, Bangladesh

BMC Research Notes, Dec 2018

Objective Hilsa shad (Tenualosa ilisha), is a popular fish of Bangladesh belonging to the Clupeidae family. An anadromous species, like the salmon and many other migratory fish, it is a unique species that lives in the sea and travels to freshwater rivers for spawning. During its entire life, Tenualosa ilisha migrates both from sea to freshwater and vice versa. Data description The genome of Tenualosa ilisha collected from the river Padma of Rajshahi, Bangladesh has been sequenced and its de novo hybrid assembly and structural annotations are being reported here. Illumina and PacBio sequencing platforms were used for high depth sequencing and the draft genome assembly was found to be 816 MB with N50 size of 188 kb. MAKER gene annotation tool predicted 31,254 gene models. Benchmarking Universal Single-Copy Orthologs refer 95% completeness of the assembled genome.

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Genome of Tenualosa ilisha from the river Padma, Bangladesh

BMC Research Notes December 2018, 11:921 | Cite as Genome of Tenualosa ilisha from the river Padma, Bangladesh AuthorsAuthors and affiliations Avizit DasPeter IanakievAbdul BatenRifath NehleenTasneem EhsanOly AhmedMohammad Riazul IslamM. Niamul NaserMong Sano MarmaHaseena Khan Open Access Data note First Online: 22 December 2018 Abstract Objective Hilsa shad (Tenualosa ilisha), is a popular fish of Bangladesh belonging to the Clupeidae family. An anadromous species, like the salmon and many other migratory fish, it is a unique species that lives in the sea and travels to freshwater rivers for spawning. During its entire life, Tenualosa ilisha migrates both from sea to freshwater and vice versa. Data description The genome of Tenualosa ilisha collected from the river Padma of Rajshahi, Bangladesh has been sequenced and its de novo hybrid assembly and structural annotations are being reported here. Illumina and PacBio sequencing platforms were used for high depth sequencing and the draft genome assembly was found to be 816 MB with N50 size of 188 kb. MAKER gene annotation tool predicted 31,254 gene models. Benchmarking Universal Single-Copy Orthologs refer 95% completeness of the assembled genome. KeywordsHilsa shad Tenualosa ilisha Clupediae Whole genome sequence NGS platform  Abbreviations BUSCO Benchmarking Universal Single-Copy Orthologs PacBio Pacific Bioscience Gbp giga base pair Mb mega base pair Kb kilo base pair bp base pair GO gene ontology SDS sodium dodecyl sulfate EDTA ethylenediaminetetraacetic acid qPCR quantitative polymerase chain reaction SMRT single molecule real time sequencing MaSuRCA Maryland Super-Read Celera Assembler EST expressed sequenced tag SNAP Semi-HMM-based Nucleic Acid Parser Objective Hilsa shad known as ilish in Bangladeshis popular for its taste and the texture of its flesh. This species of fish belongs to the shad in Clupeidae family. In addition to the Bay of Bengal and riverine Bangladesh (the Padma, Jamuna, Meghna, and other coastal rivers of Bangladesh), this fish is also found in the Persian Gulf, Mediterranean Sea, Arabian Sea and China Sea [1]. Fisheries, a part of the Bangladesh’s cultural heritage, have played an important role on its socioeconomic development in terms of protein supply, generation of employment and earning of foreign currency. According to the FAO, in 2018 Bangladesh ranked 3rd in the world in inland fish production. Hilsa (Tenualosa ilisha), is the most popular among the 650 or so marine and inland fish found in Bangladesh. It contributes to 11% of total fish production and 1% to the national GDP, 3.00% of the total export earnings and about 2.5 million people in Bangladesh are directly dependent on Hilsa in providing for their families [2, 3]. At present more than 60% of global Hilsa catch is reported from Bangladesh, 20–25% from Myanmar, 15–20% from India and 5–10% from other countries (e.g., Iraq, Kuwait, Malaysia, Thailand and Pakistan). The recent Hilsa production of Bangladesh is about half a million metric ton [4]. In spite of such importance Hilsa is still lacks molecular genomic information. Significance of this data for the improvement in sustainability and maintenance of diversity of this fish cannot therefore be overemphasized. Data description Fresh Tenualosa ilisha samples from the river Padma at Rajshahi were collected and instantly preserved on dry ice. White and red muscles of the fish were used for DNA extraction. A modified SDS (Sodium Dodecyl Sulfate) method [5], optimized in our lab was used for DNA extraction (detailed methodology in Data File 1, Table 1). Table 1 Overview of data files/data sets Label Name of data file/data set File types (file extension) Data repository and identifier (DOI or accession number) Data file 1 DNA isolation and library preparation methodology .docs file https://figshare.com/s/467b8b670149f1a0617c Data file 2 Whole genome assembly data FASTA NCBI GeneBank (Accession numbers: GCA_003651195.1) (http://identifiers.org/ncbi/insdc.gca:GCA_003651195.1.) Data file 3 Whole genome sequence FASTA NCBI GeneBank (Accession numbers: QYSC01000001–QYSC01124209) (http://identifiers.org/ncbi/insdc:QYSC00000000.) Data file 4 Annotation data file .tsv https://figshare.com/s/270b54d9d076ef5e5901 Pair end library with an insert size of around 300 bp was constructed for Illumina sequencing using NEB NebNext Ultra II DNA kit (detailed methodology in Data File 1, Table 1) Genomic DNA was sequenced by Illumina HiSeq 4000 and Pacific Bioscience Sequel, single molecule, real time (SMRT, Single Molecule Real Time) sequencing platforms. The quality of the reads were checked using FastQC [6]. MaSuRCA (Maryland Super-Read Celera Assembler) ver 3.2.6 was used for hybrid de novo assembly [7] using both the Illumina and PacBio data. The genome assembly data has been deposited in the NCBI GeneBank under the Accession numbers G (...truncated)


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Avizit Das, Peter Ianakiev, Abdul Baten, Rifath Nehleen, Tasneem Ehsan, Oly Ahmed, Mohammad Riazul Islam, M. Niamul Naser, Mong Sano Marma, Haseena Khan. Genome of Tenualosa ilisha from the river Padma, Bangladesh, BMC Research Notes, 2018, pp. 921, Volume 11, Issue 1, DOI: 10.1186/s13104-018-4028-8