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BMC Genomics

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https://www.readbyqxmd.com/read/28646875/genome-analysis-of-diploscapter-coronatus-insights-into-molecular-peculiarities-of-a-nematode-with-parthenogenetic-reproduction
#1
Hideaki Hiraki, Hiroshi Kagoshima, Christopher Kraus, Philipp H Schiffer, Yumiko Ueta, Michael Kroiher, Einhard Schierenberg, Yuji Kohara
BACKGROUND: Sexual reproduction involving the fusion of egg and sperm is prevailing among eukaryotes. In contrast, the nematode Diploscapter coronatus, a close relative of the model Caenorhabditis elegans, reproduces parthenogenetically. Neither males nor sperm have been observed and some steps of meiosis are apparently skipped in this species. To uncover the genomic changes associated with the evolution of parthenogenesis in this nematode, we carried out a genome analysis. RESULTS: We obtained a 170 Mbp draft genome in only 511 scaffolds with a N50 length of 1 Mbp...
June 24, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28646867/a-high-quality-annotated-transcriptome-of-swine-peripheral-blood
#2
Haibo Liu, Timothy P L Smith, Dan J Nonneman, Jack C M Dekkers, Christopher K Tuggle
BACKGROUND: High throughput gene expression profiling assays of peripheral blood are widely used in biomedicine, as well as in animal genetics and physiology research. Accurate, comprehensive, and precise interpretation of such high throughput assays relies on well-characterized reference genomes and/or transcriptomes. However, neither the reference genome nor the peripheral blood transcriptome of the pig have been sufficiently assembled and annotated to support such profiling assays in this emerging biomedical model organism...
June 24, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28646863/fine-mapping-host-genetic-variation-underlying-outcomes-to-mycobacterium-bovis-infection-in-dairy-cows
#3
S Wilkinson, S C Bishop, A R Allen, S H McBride, R A Skuce, M Bermingham, J A Woolliams, E J Glass
BACKGROUND: Susceptibility to Mycobacterium bovis infection in cattle is governed in part by host genetics. However, cattle diagnosed as infected with M. bovis display varying signs of pathology. The variation in host response to infection could represent a continuum since time of exposure or distinct outcomes due to differing pathogen handling. The relationships between host genetics and variation in host response and pathological sequelae following M. bovis infection were explored by genotyping 1966 Holstein-Friesian dairy cows at 538,231 SNPs with three distinct phenotypes...
June 24, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28645321/genome-wide-analysis-of-dna-methylation-in-hypothalamus-and-ovary-of-capra-hircus
#4
Stefano Frattini, Emanuele Capra, Barbara Lazzari, Stephanie D McKay, Beatrice Coizet, Andrea Talenti, Debora Groppetti, Pietro Riccaboni, Alessandro Pecile, Stefania Chessa, Bianca Castiglioni, John L Williams, Giulio Pagnacco, Alessandra Stella, Paola Crepaldi
BACKGROUND: DNA methylation is a frequently studied epigenetic modification due to its role in regulating gene expression and hence in biological processes and in determining phenotypic plasticity in organisms. Rudimentary DNA methylation patterns for some livestock species are publically available: among these, goat methylome deserves to be further explored. RESULTS: Genome-wide DNA methylation maps of the hypothalamus and ovary from Saanen goats were generated using Methyl-CpG binding domain protein sequencing (MBD-seq)...
June 23, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28645261/genome-wide-analysis-of-udp-glycosyltransferase-super-family-in-brassica-rapa-and-brassica-oleracea-reveals-its-evolutionary-history-and-functional-characterization
#5
Jingyin Yu, Fan Hu, Komivi Dossa, Zhaokai Wang, Tao Ke
BACKGROUND: Glycosyltransferases comprise a highly divergent and polyphyletic multigene family that is involved in widespread modification of plant secondary metabolites in a process called glycosylation. According to conserved domains identified in their amino acid sequences, these glycosyltransferases can be classified into a single UDP-glycosyltransferase (UGT) 1 superfamily. RESULTS: We performed genome-wide comparative analysis of UGT genes to trace evolutionary history in algae, bryophytes, pteridophytes, and angiosperms; then, we further investigated the expansion mechanisms and function characterization of UGT gene families in Brassica rapa and Brassica oleracea...
June 23, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28645249/comparative-transcriptomic-analysis-of-the-evolution-and-development-of-flower-size-in-saltugilia-polemoniaceae
#6
Jacob B Landis, Douglas E Soltis, Pamela S Soltis
BACKGROUND: Flower size varies dramatically across angiosperms, representing innovations over the course of >130 million years of evolution and contributing substantially to relationships with pollinators. However, the genetic underpinning of flower size is not well understood. Saltugilia (Polemoniaceae) provides an excellent non-model system for extending the genetic study of flower size to interspecific differences that coincide with variation in pollinators. RESULTS: Using targeted gene capture methods, we infer phylogenetic relationships among all members of Saltugilia to provide a framework for investigating the genetic control of flower size differences via RNA-Seq de novo assembly...
June 23, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28645248/characterizing-the-reproductive-transcriptomic-correlates-of-acute-dehydration-in-males-in-the-desert-adapted-rodent-peromyscus-eremicus
#7
Lauren Kordonowy, Matthew MacManes
BACKGROUND: The understanding of genomic and physiological mechanisms related to how organisms living in extreme environments survive and reproduce is an outstanding question facing evolutionary and organismal biologists. One interesting example of adaptation is related to the survival of mammals in deserts, where extreme water limitation is common. Research on desert rodent adaptations has focused predominantly on adaptations related to surviving dehydration, while potential reproductive physiology adaptations for acute and chronic dehydration have been relatively neglected...
June 23, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28645245/transcriptomic-dynamics-in-soybean-near-isogenic-lines-differing-in-alleles-for-an-aphid-resistance-gene-following-infestation-by-soybean-aphid-biotype-2
#8
Sungwoo Lee, Bryan J Cassone, Asela Wijeratne, Tae-Hwan Jun, Andrew P Michel, M A Rouf Mian
BACKGROUND: Genetic resistance of soybean [Glycine max (L.) Merr] against Aphis glycines provides effective management of this invasive pest, though the underlying molecular mechanisms are largely unknown. This study aimed to investigate genome-wide changes in gene expressions of soybean near-isogenic lines (NILs) either with the Rag5 allele for resistance or the rag5 allele for susceptibility to the aphid following infestation with soybean aphid biotype 2. RESULTS: The resistant (R)-NIL responded more rapidly to aphid infestation than the susceptible (S)-NIL, with differential expressions of 2496 genes during first 12 h of infestation (hai), compared to the aphid-free control...
June 23, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28641571/erratum-to-long-lasting-effect-of-obesity-on-skeletal-muscle-transcriptome
#9
Ilhem Messaoudi, Mithila Handu, Maham Rais, Suhas Sureshchandra, Byung S Park, Suzanne S Fei, Hollis Wright, Ashley E White, Ruhee Jain, Judy L Cameron, Kerri M Winters-Stone, Oleg Varlamov
No abstract text is available yet for this article.
June 22, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28637447/differential-gene-expression-at-different-stages-of-mesocarp-development-in-high-and-low-yielding-oil-palm
#10
Yick Ching Wong, Huey Fang Teh, Katharina Mebus, Tony Eng Keong Ooi, Qi Bin Kwong, Ka Loo Koo, Chuang Kee Ong, Sean Mayes, Fook Tim Chew, David R Appleton, Harikrishna Kulaveerasingam
BACKGROUND: The oil yield trait of oil palm is expected to involve multiple genes, environmental influences and interactions. Many of the underlying mechanisms that contribute to oil yield are still poorly understood. In this study, we used a microarray approach to study the gene expression profiles of mesocarp tissue at different developmental stages, comparing genetically related high- and low- oil yielding palms to identify genes that contributed to the higher oil-yielding palm and might contribute to the wider genetic improvement of oil palm breeding populations...
June 21, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28633640/biological-mechanisms-discriminating-growth-rate-and-adult-body-weight-phenotypes-in-two-chinese-indigenous-chicken-breeds
#11
Tengfei Dou, Sumei Zhao, Hua Rong, Dahai Gu, Qihua Li, Ying Huang, Zhiqiang Xu, Xiaohui Chu, Linli Tao, Lixian Liu, Changrong Ge, Marinus F W Te Pas, Junjing Jia
BACKGROUND: Intensive selection has resulted in increased growth rates and muscularity in broiler chickens, in addition to adverse effects, including delayed organ development, sudden death syndrome, and altered metabolic rates. The biological mechanisms underlying selection responses remain largely unknown. Non-artificially-selected indigenous Chinese chicken breeds display a wide variety of phenotypes, including differential growth rate, body weight, and muscularity. The Wuding chicken breed is a fast growing large chicken breed, and the Daweishan mini chicken breed is a slow growing small chicken breed...
June 20, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28629368/identification-and-characterization-of-long-intergenic-noncoding-rnas-in-bovine-mammary-glands
#12
Chao Tong, Qiaoling Chen, Lili Zhao, Junfei Ma, Eveline M Ibeagha-Awemu, Xin Zhao
BACKGROUND: Mammary glands of dairy cattle produce milk for the newborn offspring and for human consumption. Long intergenic noncoding RNAs (lincRNAs) play various functions in eukaryotic cells. However, types and roles of lincRNAs in bovine mammary glands are still poorly understood. RESULTS: Using computational methods, 886 unknown intergenic transcripts (UITs) were identified from five RNA-seq datasets from bovine mammary glands. Their non-coding potentials were predicted by using the combination of four software programs (CPAT, CNCI, CPC and hmmscan), with 184 lincRNAs identified...
June 19, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28629322/construction-of-high-density-genetic-map-and-qtl-mapping-of-yield-related-and-two-quality-traits-in-soybean-rils-population-by-rad-sequencing
#13
Nianxi Liu, Mu Li, Xiangbao Hu, Qibin Ma, Yinghui Mu, Zhiyuan Tan, Qiuju Xia, Gengyun Zhang, Hai Nian
BACKGROUND: One of the overarching goals of soybean breeding is to develop lines that combine increased yield with improved quality characteristics. High-density-marker QTL mapping can serve as an effective strategy to identify novel genomic information to facilitate crop improvement. In this study, we genotyped a recombinant inbred line (RIL) population (Zhonghuang 24 × Huaxia 3) using a restriction-site associated DNA sequencing (RAD-seq) approach. A high-density soybean genetic map was constructed and used to identify several QTLs that were shown to influence six yield-related and two quality traits...
June 19, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28629321/the-biocontrol-agent-pseudomonas-chlororaphis-pa23-primes-brassica-napus-defenses-through-distinct-gene-networks
#14
Kelly A Duke, Michael G Becker, Ian J Girard, Jenna L Millar, W G Dilantha Fernando, Mark F Belmonte, Teresa R de Kievit
BACKGROUND: The biological control agent Pseudomonas chlororaphis PA23 is capable of protecting Brassica napus (canola) from the necrotrophic fungus Sclerotinia sclerotiorum via direct antagonism. While we have elucidated bacterial genes and gene products responsible biocontrol, little is known about how the host plant responds to bacterial priming on the leaf surface, including global changes in gene activity in the presence and absence of S. sclerotiorum. RESULTS: Application of PA23 to the aerial surfaces of canola plants reduced the number of S...
June 19, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28625162/a-reference-genome-for-nicotiana-tabacum-enables-map-based-cloning-of-homeologous-loci-implicated-in-nitrogen-utilization-efficiency
#15
K D Edwards, N Fernandez-Pozo, K Drake-Stowe, M Humphry, A D Evans, A Bombarely, F Allen, R Hurst, B White, S P Kernodle, J R Bromley, J P Sanchez-Tamburrino, R S Lewis, L A Mueller
BACKGROUND: Tobacco (Nicotiana tabacum) is an important plant model system that has played a key role in the early development of molecular plant biology. The tobacco genome is large and its characterisation challenging because it is an allotetraploid, likely arising from hybridisation between diploid N. sylvestris and N. tomentosiformis ancestors. A draft assembly was recently published for N. tabacum, but because of the aforementioned genome complexities it was of limited utility due to a high level of fragmentation...
June 19, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28619070/genome-and-transcriptome-sequence-of-finger-millet-eleusine-coracana-l-gaertn-provides-insights-into-drought-tolerance-and-nutraceutical-properties
#16
Shailaja Hittalmani, H B Mahesh, Meghana Deepak Shirke, Hanamareddy Biradar, Govindareddy Uday, Y R Aruna, H C Lohithaswa, A Mohanrao
BACKGROUND: Finger millet (Eleusine coracana (L.) Gaertn.) is an important staple food crop widely grown in Africa and South Asia. Among the millets, finger millet has high amount of calcium, methionine, tryptophan, fiber, and sulphur containing amino acids. In addition, it has C4 photosynthetic carbon assimilation mechanism, which helps to utilize water and nitrogen efficiently under hot and arid conditions without severely affecting yield. Therefore, development and utilization of genomic resources for genetic improvement of this crop is immensely useful...
June 15, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28615065/genome-wide-association-study-and-genomic-prediction-for-fatty-acid-composition-in-chinese-simmental-beef-cattle-using-high-density-snp-array
#17
Bo Zhu, Hong Niu, Wengang Zhang, Zezhao Wang, Yonghu Liang, Long Guan, Peng Guo, Yan Chen, Lupei Zhang, Yong Guo, Heming Ni, Xue Gao, Huijiang Gao, Lingyang Xu, Junya Li
BACKGROUND: Fatty acid composition of muscle is an important trait contributing to meat quality. Recently, genome-wide association study (GWAS) has been extensively used to explore the molecular mechanism underlying important traits in cattle. In this study, we performed GWAS using high density SNP array to analyze the association between SNPs and fatty acids and evaluated the accuracy of genomic prediction for fatty acids in Chinese Simmental cattle. RESULTS: Using the BayesB method, we identified 35 and 7 regions in Chinese Simmental cattle that displayed significant associations with individual fatty acids and fatty acid groups, respectively...
June 14, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28615053/loci-and-candidate-genes-conferring-resistance-to-soybean-cyst-nematode-hg-type-2-5-7
#18
Xue Zhao, Weili Teng, Yinghui Li, Dongyuan Liu, Guanglu Cao, Dongmei Li, Lijuan Qiu, Hongkun Zheng, Yingpeng Han, Wenbin Li
BACKGROUND: Soybean (Glycine max L. Merr.) cyst nematode (SCN, Heterodera glycines I,) is a major pest of soybean worldwide. The most effective strategy to control this pest involves the use of resistant cultivars. The aim of the present study was to investigate the genome-wide genetic architecture of resistance to SCN HG Type 2.5.7 (race 1) in landrace and elite cultivated soybeans. RESULTS: A total of 200 diverse soybean accessions were screened for resistance to SCN HG Type 2...
June 14, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28615048/integrated-metabolome-and-transcriptome-analysis-of-magnolia-champaca-identifies-biosynthetic-pathways-for-floral-volatile-organic-compounds
#19
Savitha Dhandapani, Jingjing Jin, Vishweshwaran Sridhar, Rajani Sarojam, Nam-Hai Chua, In-Cheol Jang
BACKGROUND: Magnolia champaca, commonly known as champak is a well-known tree due to its highly fragrant flowers. Champak floral scent is attributed to a complex mix of volatile organic compounds (VOCs). These aromatic flowers are widely used in flavors and fragrances industry. Despite its commercial importance, the VOC biosynthesis pathways in these flowers are largely unknown. Here, we combine metabolite and RNA sequencing (RNA-seq) analyses of fully opened champak flowers to discover the active VOC biosynthesis pathways as well as floral scent-related genes...
June 14, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28610618/relatively-frequent-switching-of-transcription-start-sites-during-cerebellar-development
#20
Peter Zhang, Emmanuel Dimont, Thomas Ha, Douglas J Swanson, Winston Hide, Dan Goldowitz
BACKGROUND: Alternative transcription start site (TSS) usage plays important roles in transcriptional control of mammalian gene expression. The growing interest in alternative TSSs and their role in genome diversification spawned many single-gene studies on differential usages of tissue-specific or temporal-specific alternative TSSs. However, exploration of the switching usage of alternative TSS usage on a genomic level, especially in the central nervous system, is largely lacking. RESULTS: In this study, We have prepared a unique set of time-course data for the developing cerebellum, as part of the FANTOM5 consortium ( http://fantom...
June 13, 2017: BMC Genomics
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