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https://www.readbyqxmd.com/read/28931078/microgeographic-population-structuring-of-aedes-aegypti-diptera-culicidae
#1
André Barretto Bruno Wilke, Ramon Wilk-da-Silva, Mauro Toledo Marrelli
Aedes aegypti is one of the species most favored by changes in the environment caused by urbanization. Its abundance increases rapidly in the face of such changes, increasing the risk of disease transmission. Previous studies have shown that mosquito species that have adapted to anthropogenic environmental changes benefit from urbanization and undergo population expansion. In light of this, we used microsatellite markers to explore how urbanization processes may be modulating Ae. aegypti populations collected from three areas with different levels of urbanization in the city of São Paulo, Brazil...
2017: PloS One
https://www.readbyqxmd.com/read/28931071/the-origin-of-multiple-clones-in-the-parthenogenetic-lizard-species-darevskia-rostombekowi
#2
Alexey P Ryskov, Fedor A Osipov, Andrey V Omelchenko, Seraphima K Semyenova, Anastasiya E Girnyk, Vitaly I Korchagin, Andrey A Vergun, Robert W Murphy
The all-female Caucasian rock lizard Darevskia rostombekowi and other unisexual species of this genus reproduce normally via true parthenogenesis. Typically, diploid parthenogenetic reptiles exhibit some amount of clonal diversity. However, allozyme data from D. rostombekowi have suggested that this species consists of a single clone. Herein, we test this hypothesis by evaluating variation at three variable microsatellite loci for 42 specimens of D. rostombekowi from four populations in Armenia. Analyses based on single nucleotide polymorphisms of each locus reveal five genotypes or presumptive clones in this species...
2017: PloS One
https://www.readbyqxmd.com/read/28929497/genetic-diversity-and-paternal-origin-of-domestic-donkeys
#3
H Han, N Chen, J Jordana, C Li, T Sun, X Xia, X Zhao, C Ji, S Shen, J Yu, F Ainhoa, H Chen, C Lei, R Dang
Numerous studies have been conducted to investigate genetic diversity, origins and domestication of donkey using autosomal microsatellites and the mitochondrial genome, whereas the male-specific region of the Y chromosome of modern donkeys is largely uncharacterized. In the current study, 14 published equine Y chromosome-specific microsatellites (Y-STR) were investigated in 395 male donkey samples from China, Egypt, Spain and Peru using fluorescent labeled microsatellite markers. The results showed that seven Y-STRs-EcaYP9, EcaYM2, EcaYE2, EcaYE3, EcaYNO1, EcaYNO2 and EcaYNO4-were male specific and polymorphic, showing two to eight alleles in the donkeys studied...
September 19, 2017: Animal Genetics
https://www.readbyqxmd.com/read/28928870/the-impact-of-microsatellite-instability-status-and-sidedness-of-the-primary-tumor-on-the-effect-of-cetuximab-containing-chemotherapy-in-patients-with-metastatic-colorectal-cancer
#4
Seung Tae Kim, Su-Jin Lee, Jeeyun Lee, Se Hoon Park, Joon Oh Park, Ho Yeong Lim, Won Ki Kang, Young Suk Park
Background: Colorectal cancer (CRC) has been reconsidered as a heterogeneous disease. Among advances of genomic analysis in CRC, the sidedness of tumors (left-sided colon vs. right-sided colon) and microsatellite instability (MSI)-high (H) tumors have been highlighted. Methods: We analyzed 153 CRC patients who were available for evaluation of MSI status and had been treated with cetuximab-containing chemotherapy between April 2008 and January 2013. KRAS mutational status was available in all 153 patients, but BRAF mutational status was only available in 72 patients (47...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28927196/the-intricate-interplay-between-msi-and-polymorphisms-of-dna-repair-enzymes-in-gastric-cancer-h-pylori-associated
#5
Isabelle Joyce de Lima Silva-Fernandes, Emanuele Silva de Oliveira, Juliana Carvalho Santos, Marcelo Lima Ribeiro, Adriana Camargo Ferrasi, Maria Inês de Moura Campos Pardini, Rommel Mário Rodriguez Burbano, Silvia Helena Barem Rabenhorst
Gastric cancer is the fourth most common type of cancer worldwide. Helicobacter pylori is a well-established risk factor and may cause injuries to genomic integrity through an inefficient DNA repair. This study aimed to examine the influence of polymorphisms in DNA repair enzymes using markers for microsatellite instability (MSI). Polymorphisms of DNA repair enzymes were detected by PCR-RFLP and MSI, by high resolution melt (HRM) analysis. Helicobacter pylori detection and genotyping were accomplished by PCR...
July 1, 2017: Mutagenesis
https://www.readbyqxmd.com/read/28927079/new-use-of-microsatellite-instability-analysis-in-endometrial-cancer
#6
Haruko Kunitomi, Kouji Banno, Megumi Yanokura, Takashi Takeda, Moito Iijima, Kanako Nakamura, Miho Iida, Masataka Adachi, Keiko Watanabe, Yusuke Matoba, Yusuke Kobayashi, Eiichiro Tominaga, Daisuke Aoki
The increasing incidence of obesity and diabetes due to changes in diet, earlier menarche, delayed menopause, late marriage, and declining birth rate have resulted in an increase in the number of endometrial cancer cases over the last few decades. Although surgical therapy is sufficient for early endometrial cancer, there is no effective therapy for patients with advanced and recurrent endometrial cancer. The oncogenic mechanism of endometrial cancer involves microsatellite instability (MSI) caused by dysfunction of DNA mismatch repair genes in 30% of patients...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28924516/characterization-and-transferability-of-microsatellites-for-the-kangaroo-paw-anigozanthos-manglesii-haemodoraceae
#7
Bronwyn M Ayre, Janet M Anthony, David G Roberts, Richard J N Allcock, Siegfried L Krauss
PREMISE OF THE STUDY: Microsatellites were developed for the future assessment of population genetic structure, mating system, and dispersal of the perennial kangaroo paw, Anigozanthos manglesii (Haemodoraceae), and related species. METHODS AND RESULTS: Using a Personal Genome Machine (PGM) semiconductor sequencer, ca. 4.03 million sequence reads were generated. QDD pipeline software was used to identify 190,000 microsatellite-containing regions and priming sites...
August 2017: Applications in Plant Sciences
https://www.readbyqxmd.com/read/28924515/characterization-of-microsatellite-markers-for-broussonetia-papyrifera-moraceae
#8
Johany Peñailillo, Wenhsi Kuo, Gabriela Olivares, Gerardo Silva-Poblete, Barbara Peña-Ahumada, Sofía Muñoz, Ximena Moncada, Kuo-Fang Chung, Daniela Seelenfreund, Andrea Seelenfreund
PREMISE OF THE STUDY: Broussonetia papyrifera (Moraceae) is native to Asia and is used as a medicinal plant and as a source of fiber for making paper. It was dispersed into the Pacific region as a fiber source for making nonwoven textiles (barkcloth). Microsatellites were developed to trace the human-mediated dispersal of this species into the Pacific region. METHODS AND RESULTS: A set of 36 microsatellites was isolated and initially assayed on 10 accessions to assess polymorphism...
August 2017: Applications in Plant Sciences
https://www.readbyqxmd.com/read/28924514/isolation-and-characterization-of-microsatellite-loci-from-arthropodium-cirratum-asparagaceae
#9
Mariana Bulgarella, Patrick J Biggs, Peter J de Lange, Lara D Shepherd
PREMISE OF THE STUDY: Microsatellite markers were developed for Arthropodium cirratum (Asparagaceae) to study population genetic structure and translocation of this species. These markers were tested for cross-amplification in two other Arthropodium species. METHODS AND RESULTS: Sixteen microsatellite markers were developed from a genomic library and tested in three populations of A. cirratum. The loci exhibited one to five alleles per locus, with private alleles present in each of the populations...
August 2017: Applications in Plant Sciences
https://www.readbyqxmd.com/read/28924513/identification-and-characterization-of-microsatellite-loci-in-the-tuliptree-liriodendron-tulipifera-magnoliaceae
#10
Ricardo Gutiérrez-Ozuna, Matthew B Hamilton
PREMISE OF THE STUDY: Twenty-three polymorphic microsatellite loci (simple sequence repeats) were identified and characterized for Liriodendron tulipifera (Magnoliaceae), a species native to eastern North America, to investigate its genetic diversity, population structure, and mating system. METHODS AND RESULTS: Using Illumina HiSeq paired-end reads from genomic DNA, searches for repeat motifs identified approximately 280,000 potentially amplifiable loci. Of 77 loci tested, 51 amplified consistently...
August 2017: Applications in Plant Sciences
https://www.readbyqxmd.com/read/28924512/fourteen-polymorphic-microsatellite-markers-for-a-widespread-limestone-endemic-carex-eburnea-cyperaceae-carex-sect-albae
#11
Emily L Gillespie, Annabella G Pauley, Megan L Haffner, Nikolai M Hay, Matt C Estep, Zack E Murrell
PREMISE OF THE STUDY: Microsatellite primers were developed for a widespread limestone endemic sedge, Carex eburnea, to facilitate investigation of the genetic diversity and phylogeography of this taxon and its closest relative, C. mckittrickensis. METHODS AND RESULTS: Forty-eight primer pairs were designed from Illumina sequence data and screened for suitability. Fourteen of these primer pairs were polymorphic and generated one to seven alleles per locus. Cross-species amplifications were conducted for all four members of Carex sect...
August 2017: Applications in Plant Sciences
https://www.readbyqxmd.com/read/28924510/development-of-est-ssr-markers-for-taxillus-nigrans-loranthaceae-in-southwestern-china-using-next-generation-sequencing
#12
Ning Miao, Lei Zhang, Maoping Li, Liqiang Fan, Kangshan Mao
PREMISE OF THE STUDY: We developed transcriptome microsatellite markers (simple sequence repeats) for Taxillus nigrans (Loranthaceae) to survey the genetic diversity and population structure of this species. METHODS AND RESULTS: We used Illumina HiSeq data to reconstruct the transcriptome of T. nigrans by de novo assembly and used the transcriptome to develop a set of simple sequence repeat markers. Overall, 40 primer pairs were designed and tested; 19 of them amplified successfully and demonstrated polymorphisms...
August 2017: Applications in Plant Sciences
https://www.readbyqxmd.com/read/28924508/correction-to-whole-genome-shotgun-sequences-for-microsatellite-discovery-and-application-in-cultivated-and-wild-macadamia-proteaceae
#13
Catherine J Nock, Martin S Elphinstone, Gary Ablett, Asuka Kawamata, Wayne Hancock, Craig M Hardner, Graham J King
[This corrects the article DOI: 10.3732/apps.1300089.].
August 2017: Applications in Plant Sciences
https://www.readbyqxmd.com/read/28923927/mif-and-d-dt-are-potential-disease-severity-modifiers-in-male-ms-subjects
#14
Gil Benedek, Roberto Meza-Romero, Kelley Jordan, Ying Zhang, Ha Nguyen, Gail Kent, Jia Li, Edwin Siu, Jenny Frazer, Marta Piecychna, Xin Du, Antoine Sreih, Lin Leng, Jack Wiedrick, Stacy J Caillier, Halina Offner, Jorge R Oksenberg, Vijayshree Yadav, Dennis Bourdette, Richard Bucala, Arthur A Vandenbark
Little is known about mechanisms that drive the development of progressive multiple sclerosis (MS), although inflammatory factors, such as macrophage migration inhibitory factor (MIF), its homolog D-dopachrome tautomerase (D-DT), and their common receptor CD74 may contribute to disease worsening. Our findings demonstrate elevated MIF and D-DT levels in males with progressive disease compared with relapsing-remitting males (RRMS) and female MS subjects, with increased levels of CD74 in females vs. males with high MS disease severity...
September 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28923119/alk-positive-gastric-inflammatory-myofibroblastic-tumor-in-an-adult-with-familial-adenomatous-polyposis-and-diffuse-fundic-polyposis
#15
Jun Fan, Bo Huang, Xiuping Yang, Ming Yang, Jun He, Xiu Nie
BACKGROUND: Inflammatory myofibroblastic tumor (IMT) of the stomach is extremely rare in adults and exhibits a variable biological behavior that ranges from frequently benign lesions to more aggressive variants. Here we report a case of gastric IMT with lymph node metastasis in an adult who had undergone total colectomy for familial adenomatous polyposis (FAP). CASE PRESENTATION: A 37-year-old man presented gradual-onset epigastric discomfort; he had undergone total colectomy for FAP 6 years before...
September 18, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28922790/the-balance-between-cytotoxic-t-cell-lymphocytes-and-immune-checkpoint-expression-in-the-prognosis-of-colon-tumors
#16
Laetitia Marisa, Magali Svrcek, Ada Collura, Etienne Becht, Pascale Cervera, Kristell Wanherdrick, Olivier Buhard, Anastasia Goloudina, Vincent Jonchère, Janick Selves, Gerard Milano, Dominique Guenot, Romain Cohen, Chrystelle Colas, Pierre Laurent-Puig, Sylviane Olschwang, Jérémie H Lefèvre, Yann Parc, Valérie Boige, Côme Lepage, Thierry André, Jean-François Fléjou, Valentin Dérangère, François Ghiringhelli, Aurélien de Reynies, Alex Duval
Background: Immune checkpoint (ICK) expression might represent a surrogate measure of tumor-infiltrating T cell (CTL) exhaustion and therefore be a more accurate prognostic biomarker for colorectal cancer (CRC) patients than CTL enumeration as measured by the Immunoscore. Methods: The expression of ICKs, Th1, CTLs, cytotoxicity-related genes, and metagenes, including Immunoscore-like metagenes, were evaluated in three independent cohorts of CRC samples (260 microsatellite instable [MSI], 971 non-MSI)...
January 1, 2018: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28921927/fast-and-cost-effective-single-nucleotide-polymorphism-snp-detection-in-the-absence-of-a-reference-genome-using-semi-deep-next-generation-random-amplicon-sequencing-ramseq
#17
Helmut Bayerl, Robert H S Kraus, Carsten Nowak, Daniel W Foerster, Joerns Fickel, Ralph Kuehn
Biodiversity has suffered a dramatic global decline during the past decades and monitoring tools are urgently needed providing data for the development and evaluation of conservation efforts both on a species and a genetic level. However, in wild species the assessment of genetic diversity is often hampered by the lack of suitable genetic markers. In this article we present Random Amplicon Sequencing (RAMseq), a novel approach for fast and cost-effective detection of single nucleotide polymorphisms (SNPs) in non-model species by semi-deep sequencing of random amplicons...
September 15, 2017: Molecular Ecology Resources
https://www.readbyqxmd.com/read/28921583/associations-of-alcohol-intake-smoking-physical-activity-and-obesity-with-survival-following-colorectal-cancer-diagnosis-by-stage-anatomic-site-and-tumor-molecular-subtype
#18
Harindra Jayasekara, Dallas R English, Andrew Haydon, Allison M Hodge, Brigid M Lynch, Christophe Rosty, Elizabeth J Williamson, Mark Clendenning, Melissa C Southey, Mark A Jenkins, Robin Room, John L Hopper, Roger L Milne, Daniel D Buchanan, Graham G Giles, Robert J MacInnis
The influence of lifestyle factors on survival following a diagnosis of colorectal cancer (CRC) is not well established. We examined associations between lifestyle factors measured before diagnosis and CRC survival. The Melbourne Collaborative Cohort Study collected data on alcohol intake, cigarette smoking and physical activity, and body measurements at baseline (1990-94) and wave 2 (2003-07). We included participants diagnosed to 31 August 2015 with incident stage I-III CRC within 10-years post exposure assessment...
September 16, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28920796/successful-laparoscopic-oviductal-artificial-insemination-in-the-clouded-leopard-neofelis-nebulosa-in-thailand
#19
Wanlaya Tipkantha, Paweena Thuwanut, Umaporn Maikeaw, Ampika Thongphakdee, Saifon Yapila, Sumate Kamolnorranath, Boripat Siriaroonrat, Pierre Comizzoli, Kaywalee Chatdarong
Captive breeding of clouded leopards (Neofelis nebulosa) is challenging because of mating incompatibility, high incidence of teratospermia in males, and inconsistent ovulation patterns in females. Assisted reproductive techniques, therefore, are necessary to overcome these issues and maintain the genetic diversity in the captive population. The objective was to use laparoscopic oviductal artificial insemination (AI) to breed genetically valuable females (n = 4; aged 4.5-5 yr) that were unsuccessfully paired...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28919973/study-of-male-mediated-gene-flow-across-a-hybrid-zone-in-the-common-shrew-sorex-araneus-using-y-chromosome
#20
Andrei V Polyakov, Viktor V Panov
Despite many studies, the impact of chromosome rearrangements on gene flow between chromosome races of the common shrew (Sorex araneus Linnaeus, 1758) remains unclear. Interracial hybrids form meiotic chromosome complexes that are associated with reduced fertility. Nevertheless comprehensive investigations of autosomal and mitochondrial markers revealed weak or no barrier to gene flow between chromosomally divergent populations. In a narrow zone of contact between the Novosibirsk and Tomsk races hybrids are produced with extraordinarily complex configurations at meiosis I...
2017: Comparative Cytogenetics
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