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DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes

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https://www.readbyqxmd.com/read/28633360/expression-properties-exhibit-correlated-patterns-with-the-fate-of-duplicated-genes-their-divergence-and-transcriptional-plasticity-in-saccharomycotina
#1
Florian Mattenberger, Beatriz Sabater-Muñoz, Christina Toft, Gaurav Sablok, Mario A Fares
Gene duplication is an important source of novelties and genome complexity. What genes are preserved as duplicated through long evolutionary times can shape the evolution of innovations. Identifying factors that influence gene duplicability is therefore an important aim in evolutionary biology. Here, we show that in the yeast Saccharomyces cerevisiae the levels of gene expression correlate with gene duplicability, its divergence, and transcriptional plasticity. Genes that were highly expressed before duplication are more likely to be preserved as duplicates for longer evolutionary times and wider phylogenetic ranges than genes that were lowly expressed...
June 15, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28605512/low-coverage-resequencing-detects-meiotic-recombination-pattern-and-features-in-tomato-rils
#2
Lars S de Haas, Roy Koopmans, Cilia L C Lelivelt, Remco Ursem, Rob Dirks, Geo Velikkakam James
Traditional plant breeding relies on meiotic recombination for mixing of parental alleles to create novel allele combinations. Detailed analysis of recombination patterns in model organisms shows that recombination is tightly regulated within the genome, but frequencies vary extensively along chromosomes. Despite being a model organism for fruit developmental studies, high-resolution recombination patterns are lacking in tomato. In this study, we developed a novel methodology to use low-coverage resequencing to identify genome-wide recombination patterns and applied this methodology on 60 tomato Recombinant Inbred Lines (RILs)...
June 9, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28586432/locus-specific-chip-combined-with-ngs-analysis-reveals-genomic-regulatory-regions-that-physically-interact-with-the-pax5-promoter-in-a-chicken-b-cell-line
#3
Toshitsugu Fujita, Fusako Kitaura, Miyuki Yuno, Yutaka Suzuki, Sumio Sugano, Hodaka Fujii
Chromosomal interactions regulate genome functions, such as transcription, via dynamic chromosomal organization in the nucleus. In this study, we attempted to identify genomic regions that physically bind to the promoter region of the Pax5 gene, which encodes a master regulator for B cell lineage commitment, in a chicken B cell line, DT40, with the goal of obtaining mechanistic insight into transcriptional regulation through chromosomal interaction. We found that the Pax5 promoter bound to multiple genomic regions using locus-specific chromatin immunoprecipitation (locus-specific ChIP), a method for locus-specific isolation of target genomic regions, in combination with next-generation sequencing (NGS)...
June 6, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28575160/dynamic-changes-in-methylome-and-transcriptome-patterns-in-response-to-methyltransferase-inhibitor-5-azacytidine-treatment-in-citrus
#4
Jidi Xu, Xia Wang, Hongbo Cao, Haidan Xu, Qiang Xu, Xiuxin Deng
DNA methylation is known to play an important role in various developmental processes in plants. However, there is a general lack of understanding about the possible functions of DNA methylation in fruit trees. Using callus as a model, methylome, transcriptome and metabolite changes were assessed after treatment with the DNA methyltransferase inhibitor 5-azacytidine (5azaC). Genome-wide methylome analysis revealed the demethylation of a diverse of genes, including many genes encoding transcription factors (TFs), genes involved in biological processes, and the up-regulation of a wide range of transposable elements (TEs)...
June 1, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28575165/genome-wide-profiling-of-sus-scrofa-circular-rnas-across-nine-organs-and-three-developmental-stages
#5
Guoming Liang, Yalan Yang, Guanglin Niu, Zhonglin Tang, Kui Li
The spatio-temporal expression patterns of Circular RNA (circRNA) across organs and developmental stages are critical for its function and evolution analysis. However, they remain largely unclear in mammals. Here, we comprehensively analysed circRNAs in nine organs and three skeletal muscles of Guizhou miniature pig (S. scrofa), a widely used biomedical model animal. We identified 5,934 circRNAs and analysed their molecular properties, sequence conservation, spatio-temporal expression pattern, potential function, and interaction with miRNAs...
May 29, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28541388/the-genome-sequence-of-sweet-cherry-prunus-avium-for-use-in-genomics-assisted-breeding
#6
Kenta Shirasawa, Kanji Isuzugawa, Mitsunobu Ikenaga, Yutaro Saito, Toshiya Yamamoto, Hideki Hirakawa, Sachiko Isobe
We determined the genome sequence of sweet cherry (Prunus avium) using next-generation sequencing technology. The total length of the assembled sequences was 272.4 Mb, consisting of 10,148 scaffold sequences with an N50 length of 219.6 kb. The sequences covered 77.8% of the 352.9 Mb sweet cherry genome, as estimated by k-mer analysis, and included >96.0% of the core eukaryotic genes. We predicted 43,349 complete and partial protein-encoding genes. A high-density consensus map with 2,382 loci was constructed using double-digest restriction site-associated DNA sequencing...
May 25, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28498906/heap-a-highly-sensitive-and-accurate-snp-detection-tool-for-low-coverage-high-throughput-sequencing-data
#7
Masaaki Kobayashi, Hajime Ohyanagi, Hideki Takanashi, Satomi Asano, Toru Kudo, Hiromi Kajiya-Kanegae, Atsushi J Nagano, Hitoshi Tainaka, Tsuyoshi Tokunaga, Takashi Sazuka, Hiroyoshi Iwata, Nobuhiro Tsutsumi, Kentaro Yano
Recent availability of large-scale genomic resources enables us to conduct so called genome-wide association studies (GWAS) and genomic prediction (GP) studies, particularly with next-generation sequencing (NGS) data. The effectiveness of GWAS and GP depends on not only their mathematical models, but the quality and quantity of variants employed in the analysis. In NGS single nucleotide polymorphism (SNP) calling, conventional tools ideally require more reads for higher SNP sensitivity and accuracy. In this study, we aimed to develop a tool, Heap, that enables robustly sensitive and accurate calling of SNPs, particularly with a low coverage NGS data, which must be aligned to the reference genome sequences in advance...
May 11, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28460080/a-genomic-landscape-of-mitochondrial-dna-insertions-in-the-pig-nuclear-genome-provides-evolutionary-signatures-of-interspecies-admixture
#8
Giuseppina Schiavo, Orsolya Ivett Hoffmann, Anisa Ribani, Valerio Joe Utzeri, Marco Ciro Ghionda, Francesca Bertolini, Claudia Geraci, Samuele Bovo, Luca Fontanesi
Nuclear DNA sequences of mitochondrial origin (numts) are derived by insertion of mitochondrial DNA (mtDNA), into the nuclear genome. In this study, we provide, for the first time, a genome picture of numts inserted in the pig nuclear genome. The Sus scrofa reference nuclear genome (Sscrofa10.2) was aligned with circularized and consensus mtDNA sequences using LAST software. A total of 430 numt sequences that may represent 246 different numt integration events (57 numt regions determined by at least two numt sequences and 189 singletons) were identified, covering about 0...
April 27, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28459978/short-and-long-term-evolutionary-dynamics-of-subtelomeric-pirna-clusters-in-drosophila
#9
Amna Asif-Laidin, Valérie Delmarre, Jeanne Laurentie, Wolfgang J Miller, Stéphane Ronsseray, Laure Teysset
Two Telomeric Associated Sequences, TAS-R and TAS-L, form the principal subtelomeric repeat families identified in Drosophila melanogaster. They are PIWI-interacting RNA (piRNA) clusters involved in repression of Transposable Elements. In this study, we revisited TAS structural and functional dynamics in D. melanogaster and in related species. In silico analysis revealed that TAS-R family members are composed of previously uncharacterized domains. This analysis also showed that TAS-L repeats are composed of arrays of a region we have named "TAS-L like" (TLL) identified specifically in one TAS-R family member, X-TAS...
April 27, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28453813/identification-and-allelic-dissection-uncover-roles-of-lncrnas-in-secondary-growth-of-populus-tomentosa
#10
Daling Zhou, Qingzhang Du, Jinhui Chen, Qingshi Wang, Deqiang Zhang
Long non-coding RNAs (lncRNAs) function in various biological processes. However, their roles in secondary growth of plants remain poorly understood. Here, 15,691 lncRNAs were identified from vascular cambium, developing xylem, and mature xylem of Populus tomentosa with high and low biomass using RNA-seq, including 1,994 lncRNAs that were differentially expressed (DE) among the six libraries. 3,569 cis-regulated and 3,297 trans-regulated protein-coding genes were predicted as potential target genes (PTGs) of the DE lncRNAs to participate in biological regulation...
April 26, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28449092/genome-wide-dna-methylomes-from-discrete-developmental-stages-reveal-the-predominance-of-non-cpg-methylation-in-tribolium-castaneum
#11
Xiaowen Song, Fei Huang, Juanjuan Liu, Chengjun Li, Shanshan Gao, Wei Wu, Mengfan Zhai, Xiaojuan Yu, Wenfeng Xiong, Jia Xie, Bin Li
Cytosine DNA methylation is a vital epigenetic regulator of eukaryotic development. Whether this epigenetic modification occurs in Tribolium castaneum has been controversial, its distribution pattern and functions have not been established. Here, using bisulphite sequencing (BS-Seq), we confirmed the existence of DNA methylation and described the methylation profiles of the four life stages of T. castaneum. In the T. castaneum genome, both symmetrical CpG and non-CpG methylcytosines were observed. Symmetrical CpG methylation, which was catalysed by DNMT1 and occupied a small part in T...
April 25, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28449100/integrated-analysis-of-individual-codon-contribution-to-protein-biosynthesis-reveals-a-new-approach-to-improving-the-basis-of-rational-gene-design
#12
Juan C Villada, Otávio José Bernardes Brustolini, Wendel Batista da Silveira
Gene codon optimization may be impaired by the misinterpretation of frequency and optimality of codons. Although recent studies have revealed the effects of codon usage bias (CUB) on protein biosynthesis, an integrated perspective of the biological role of individual codons remains unknown. Unlike other previous studies, we show, through an integrated framework that attributes of codons such as frequency, optimality and positional dependency should be combined to unveil individual codon contribution for protein biosynthesis...
April 24, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28430897/genetic-variants-associated-with-the-root-system-architecture-of-oilseed-rape-brassica-napus-l-under-contrasting-phosphate-supply
#13
Xiaohua Wang, Yanling Chen, Catherine L Thomas, Guangda Ding, Ping Xu, Dexu Shi, Fabian Grandke, Kemo Jin, Hongmei Cai, Fangsen Xu, Bin Yi, Martin R Broadley, Lei Shi
Breeding crops with ideal root system architecture for efficient absorption of phosphorus is an important strategy to reduce the use of phosphate fertilizers. To investigate genetic variants leading to changes in root system architecture, 405 oilseed rape cultivars were genotyped with a 60K Brassica Infinium SNP array in low and high P environments. A total of 285 single-nucleotide polymorphisms were associated with root system architecture traits at varying phosphorus levels. Nine single-nucleotide polymorphisms corroborate a previous linkage analysis of root system architecture quantitative trait loci in the BnaTNDH population...
April 19, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28430886/intrinsic-protein-disorder-reduces-small-scale-gene-duplicability
#14
Sanghita Banerjee, Felix Feyertag, David Alvarez-Ponce
Whereas the rate of gene duplication is relatively high, only certain duplications survive the filter of natural selection and can contribute to genome evolution. However, the reasons why certain genes can be retained after duplication whereas others cannot remain largely unknown. Many proteins contain intrinsically disordered regions (IDRs), whose structures fluctuate between alternative conformational states. Due to their high flexibility, IDRs often enable protein-protein interactions and are the target of post-translational modifications...
April 19, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28419256/chloromitocu-codon-patterns-across-organelle-genomes-for-functional-genomics-and-evolutionary-applications
#15
Gaurav Sablok, Ting-Wen Chen, Chi-Ching Lee, Chi Yang, Ruei-Chi Gan, Jill L Wegrzyn, Nicola L Porta, Kinshuk C Nayak, Po-Jung Huang, Claudio Varotto, Petrus Tang
Organelle genomes are widely thought to have arisen from reduction events involving cyanobacterial and archaeal genomes, in the case of chloroplasts, or α-proteobacterial genomes, in the case of mitochondria. Heterogeneity in base composition and codon preference has long been the subject of investigation of topics ranging from phylogenetic distortion to the design of overexpression cassettes for transgenic expression. From the overexpression point of view, it is critical to systematically analyze the codon usage patterns of the organelle genomes...
April 17, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28431017/long-non-coding-rna-exchange-during-the-oocyte-to-embryo-transition-in-mice
#16
Rosa Karlic, Sravya Ganesh, Vedran Franke, Eliska Svobodova, Jana Urbanova, Yutaka Suzuki, Fugaku Aoki, Kristian Vlahovicek, Petr Svoboda
No abstract text is available yet for this article.
April 1, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28431016/somatic-transposition-and-meiotically-driven-elimination-of-an-active-helitron-family-in-pleurotus-ostreatus
#17
Alessandra Borgognone, Raúl Castanera, Elaia Muguerza, Antonio G Pisabarro, Lucía Ramírez
Helitrons constitute a superfamily of DNA transposons that were discovered in silico and are widespread in most eukaryotic genomes. They are postulated to mobilize through a "rolling-circle" mechanism, but the experimental evidence of their transposition has been described only recently. Here, we present the inheritance patterns of HELPO1 and HELPO2 helitron families in meiotically derived progeny of the basidiomycete Pleurotus ostreatus. We found distorted segregation patterns of HELPO2 helitrons that led to a strong under-representation of these elements in the progeny...
April 1, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28431015/large-scale-collection-of-full-length-cdna-and-transcriptome-analysis-in-hevea-brasiliensis
#18
Yuko Makita, Kiaw Kiaw Ng, G Veera Singham, Mika Kawashima, Hideki Hirakawa, Shusei Sato, Ahmad Sofiman Othman, Minami Matsui
Natural rubber has unique physical properties that cannot be replaced by products from other latex-producing plants or petrochemically produced synthetic rubbers. Rubber from Hevea brasiliensis is the main commercial source for this natural rubber that has a cis-polyisoprene configuration. For sustainable production of enough rubber to meet demand elucidation of the molecular mechanisms involved in the production of latex is vital. To this end, we firstly constructed rubber full-length cDNA libraries of RRIM 600 cultivar and sequenced around 20,000 clones by the Sanger method and over 15,000 contigs by Illumina sequencer...
April 1, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28431014/the-draft-genome-of-ruellia-speciosa-beautiful-wild-petunia-acanthaceae
#19
Yongbin Zhuang, Erin A Tripp
The genus Ruellia (Wild Petunias; Acanthaceae) is characterized by an enormous diversity of floral shapes and colours manifested among closely related species. Using Illumina platform, we reconstructed the draft genome of Ruellia speciosa, with a scaffold size of 1,021 Mb (or ∼1.02 Gb) and an N50 size of 17,908 bp, spanning ∼93% of the estimated genome (∼1.1 Gb). The draft assembly predicted 40,124 gene models and phylogenetic analyses of four key enzymes involved in anthocyanin colour production [flavanone 3-hydroxylase (F3H), flavonoid 3'-hydroxylase (F3'H), flavonoid 3',5'-hydroxylase (F3'5'H), and dihydroflavonol 4-reductase (DFR)] found that most angiosperms here sampled harboured at least one copy of F3H, F3'H, and DFR...
April 1, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28431013/dna-double-strand-break-repair-in-penaeus-monodon-is-predominantly-dependent-on-homologous-recombination
#20
Shikha Srivastava, Sumedha Dahal, Sharanya J Naidu, Deepika Anand, Vidya Gopalakrishnan, Rajendran Kooloth Valappil, Sathees C Raghavan
DNA double-strand breaks (DSBs) are mostly repaired by nonhomologous end joining (NHEJ) and homologous recombination (HR) in higher eukaryotes. In contrast, HR-mediated DSB repair is the major double-strand break repair pathway in lower order organisms such as bacteria and yeast. Penaeus monodon, commonly known as black tiger shrimp, is one of the economically important crustaceans facing large-scale mortality due to exposure to infectious diseases. The animals can also get exposed to chemical mutagens under the culture conditions as well as in wild...
April 1, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
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