• Title/Summary/Keyword: genome

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Whole Mitochondrial Genome Sequence of an Indian Plasmodium falciparum Field Isolate

  • Tyagi, Suchi;Pande, Veena;Das, Aparup
    • Parasites, Hosts and Diseases
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    • v.52 no.1
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    • pp.99-103
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    • 2014
  • Mitochondrial genome sequence of malaria parasites has served as a potential marker for inferring evolutionary history of the Plasmodium genus. In Plasmodium falciparum, the mitochondrial genome sequences from around the globe have provided important evolutionary understanding, but no Indian sequence has yet been utilized. We have sequenced the whole mitochondrial genome of a single P. falciparum field isolate from India using novel primers and compared with the 3D7 reference sequence and 1 previously reported Indian sequence. While the 2 Indian sequences were highly divergent from each other, the presently sequenced isolate was highly similar to the reference 3D7 strain.

Hybrid Fungal Genome Annotation Pipeline Combining ab initio, Evidence-, and Homology-based gene model evaluation

  • Min, Byoungnam;Choi, In-Geol
    • 한국균학회소식:학술대회논문집
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    • 2018.05a
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    • pp.22-22
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    • 2018
  • Fungal genome sequencing and assembly have been trivial in these days. Genome analysis relies on high quality of gene prediction and annotation. Automatic fungal genome annotation pipeline is essential for handling genomic sequence data accumulated exponentially. However, building an automatic annotation procedure for fungal genomes is not an easy task. FunGAP (Fungal Genome Annotation Pipeline) is developed for precise and accurate prediction of gene models from any fungal genome assembly. To make high-quality gene models, this pipeline employs multiple gene prediction programs encompassing ab initio, evidence-, and homology-based evaluation. FunGAP aims to evaluate all predicted genes by filtering gene models. To make a successful filtering guide for removal of false-positive genes, we used a scoring function that seeks for a consensus by estimating each gene model based on homology to the known proteins or domains. FunGAP is freely available for non-commercial users at the GitHub site (https://github.com/CompSynBioLab-KoreaUniv/FunGAP).

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The complete plastid genome of Scopolia parviflora (Dunn.) Nakai (Solanaceae)

  • Park, Jin Hee;Lee, Jungho
    • Korean Journal of Plant Taxonomy
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    • v.46 no.1
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    • pp.60-64
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    • 2016
  • Scopolia parviflora of the family Solanaceae is an endemic species of Korea and a traditional Korean medicinal plant. The plastid genome was sequenced by next-generation sequencing (NGS) method. The characterized cp genome is 156,193 bp in size; the large single-copy (LSC) region is 86,364 bp, the inverted repeat (IR) is 25,905 bp, and the small single copy (SSC) region is 18,019 bp. The overall GC content of the plastid genome amounts to 37.61%. The cp genome contains 113 genes and 21 introns, including 80 proteincoding genes, four RNA genes, 30 tRNA genes, 20 group II introns, and one group I intron. A phylogenetic analysis showed that Scopolia parviflora was closely related to Hyoscyamus niger.

Genome data mining for everyone

  • Lee, Gir-Won;Kim, Sang-Soo
    • BMB Reports
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    • v.41 no.11
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    • pp.757-764
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    • 2008
  • The genomic sequences of a huge number of species have been determined. Typically, these genome sequences and the associated annotation data are accessed through Internet-based genome browsers that offer a user-friendly interface. Intelligent use of the data should expedite biological knowledge discovery. Such activity is collectively called data mining and involves queries that can be simple, complex, and even combinational. Various tools have been developed to make genome data mining available to computational and experimental biologists alike. In this mini-review, some tools that have proven successful will be introduced along with examples taken from published reports.

Estimation of nuclear DNA content of various bamboo and rattan species

  • Kumar, Prakash P.;Turner, Ian M.;Rao, A. Nagaraja;Arumuganathan, K.
    • Plant Biotechnology Reports
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    • v.5 no.4
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    • pp.317-322
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    • 2011
  • We determined the nuclear DNA content (genome size) of over 35 accessions each of bamboo and rattan species from Southeast Asia. The 2C DNA per nucleus was quantified by flow cytometry. The fluorescence of nuclei isolated from the leaves and stained with propidium iodide was measured. The genome size of the bamboo species examined was between 2.5 and 5.9 pg DNA per 2C nucleus. The genome size of the rattan species examined ranged from 1.8 to 10.5 pg DNA per 2C nucleus. This information will be useful for scientists working in diverse areas of plant biology such as biotechnology, biodiversity, genome analysis, plant breeding, physiology and molecular biology. Such data may be utilized to attempt to correlate the genome size with the ploidy status of bamboo species in cases where ploidy status has been reported.

Genome-Wide Comparison of Carbohydrate-Active Enzymes (CAZymes) Repertoire of Flammulina ononidis

  • Park, Young-Jin;Kong, Won-Sik
    • Mycobiology
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    • v.46 no.4
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    • pp.349-360
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    • 2018
  • Whole-genome sequencing of Flammulina ononidis, a wood-rotting basidiomycete, was performed to identify genes associated with carbohydrate-active enzymes (CAZymes). A total of 12,586 gene structures with an average length of 2009 bp were predicted by the AUGUSTUS tool from a total 35,524,258 bp length of de novo genome assembly (49.76% GC). Orthologous analysis with other fungal species revealed that 7051 groups contained at least one F. ononidis gene. In addition, 11,252 (89.5%) of 12,586 genes for F. ononidis proteins had orthologs among the Dikarya, and F. ononidis contained 8 species-specific genes, of which 5 genes were paralogous. CAZyme prediction revealed 524 CAZyme genes, including 228 for glycoside hydrolases, 21 for polysaccharide lyases, 87 for glycosyltransferases, 61 for carbohydrate esterases, 87 with auxiliary activities, and 40 for carbohydrate-binding modules in the F. ononidis genome. This genome information including CAZyme repertoire will be useful to understand lignocellulolytic machinery of this white rot fungus F. ononidis.

Genome analysis of Bacteroides sp. CACC 737 isolated from feline for its potential application

  • Kim, Jung-Ae;Jung, Min Young;Kim, Dae-Hyuk;Kim, Yangseon
    • Journal of Animal Science and Technology
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    • v.62 no.6
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    • pp.952-955
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    • 2020
  • Bacteroides sp. CACC 737 was isolated from a feline, and its potential probiotic properties were characterized using functional genome analysis. Whole-genome sequencing was performed using the PacBio RSII and Illumina HiSeq platforms. The complete genome of strain CACC 737 contained 4.6 Mb, with a guanine (G) + cytosine (C) content of 45.8%, six cryptic plasmids, and extracellular polysaccharide gene as unique features. The strain was beneficial to animal health when consumed as feed, for example, for ameliorating immunological dysfunctions and metabolic disorders. The genome information adds to the comprehensive understanding of Bacteroides sp. and suggests potential animal-related industrial applications for this strain.

Advances in higher-order chromatin architecture: the move towards 4D genome

  • Jung, Namyoung;Kim, Tae-Kyung
    • BMB Reports
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    • v.54 no.5
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    • pp.233-245
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    • 2021
  • In eukaryotes, the genome is hierarchically packed inside the nucleus, which facilitates physical contact between cis-regulatory elements (CREs), such as enhancers and promoters. Accumulating evidence highlights the critical role of higher-order chromatin structure in precise regulation of spatiotemporal gene expression under diverse biological contexts including lineage commitment and cell activation by external stimulus. Genomics and imaging-based technologies, such as Hi-C and DNA fluorescence in situ hybridization (FISH), have revealed the key principles of genome folding, while newly developed tools focus on improvement in resolution, throughput and modality at single-cell and population levels, and challenge the knowledge obtained through conventional approaches. In this review, we discuss recent advances in our understanding of principles of higher-order chromosome conformation and technologies to investigate 4D chromatin interactions.

The complete chloroplast genome of Aruncus aethusifolius (Rosaceae), a species endemic to Korea

  • PARK, Jongsun;SUH, Hwa-Jung;OH, Sang-Hun
    • Korean Journal of Plant Taxonomy
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    • v.52 no.2
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    • pp.118-122
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    • 2022
  • Aruncus aethusifolius (H. Lév.) Nakai is an endemic species in Korea and is economically important as an ornamental herb. The complete chloroplast genome of A. aethusifolius is 157,217 bp long with four subregions consisting of 85,207 bp of large singlecopy and 19,222 bp of small single-copy regions separated by 26,394 bp of inverted repeat regions. The genome includes 131 genes (86 protein-coding genes, eight rRNAs, and 37 tRNAs). Phylogenetic analyses demonstrates that the chloroplast genome of A. aethusifolius was sister to A. dioicus var. kamtschaticus, forming the strongly supported clade of Aruncus. This is the first report of the chloroplast genome of A. aethusifolius.