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| Registros recuperados: 13 | |
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| Pérez Ruíz, Elizabeth. |
| El Factor 9 de Crecimiento y Diferenciación (GDF9) es miembro de la súperfamilia β de factores de crecimiento (TGFβ) y su expresión en el ovocito es esencial para el desarrollo y crecimiento folicular. Diferentes mutaciones en el gen GDF9 han sido asociadas con el incremento de tasa de ovulación y/o prolificidad en algunas razas de ovejas, por lo que el objetivo de este estudio fue la búsqueda de polimorfismos de una sola base (SNPs) en el gen GDF9, así como la asociación entre polimorfismos del gen GDF9 y el índice de prolificidad en ovejas de la raza Pelibuey. Se tomaron muestras sanguíneas de la vena yugular de 16 ovejas y fueron conservadas en papel FTA® (Whatman Mini Card). El exón dos del gen fue amplificado mediante la técnica de Polimerase Chain... |
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Palavras-chave: Análisis de secuencias; GDF9; Mutación; Polimorfismo; PCR; SNP; Sequence analysis; Mutation; Polymorphism; Maestría; Ganadería. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/1712 |
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| Jie,Li; Zheng,Ping-Ping; Song,Jiao-Lian; Rui,Jin-Long; Nie,Liu-Wang. |
| The Sox family of genes shares a high sequence similarity with the HMG box region of the human Y chromosomal gene, SRY. We used highly degenerate primers to clone and sequence seven Eremias breuchleyi Sox genes (EbSox2, EbSox3, EbSox4, EbSox11, EbSox12, EbSox14 and EbSox21). A database search for the cloned sequences revealed the following percentage identity with the homologous human SOX genes: EbSox2 = 96%, EbSox3 = 88%, EbSox4 = 94%, EbSox11 = 99%, EbSox12 = 96%, EbSox14 = 98%, EbSox21 = 97%. Cluster analysis indicates that they seem to belong to group B and group C of Sox gene family, respectively. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Eremias breuchleyi; PCR; Sequence analysis; Sox genes; SSCP. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572006000300031 |
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| Henkes,Luiz Ernani; Silva Jr,Wilson Araújo; Moraes,José Carlos Ferrugem; Weimer,Tania Azevedo. |
| The genetic diversity of 277 nucleotides in the mitochondrial DNA control region (nt 15,964 to 16,240 in reference sequence) was analyzed in crossbreed beef cattle (Brangus-Ibage, 5/8 Bos primigenius taurus x 3/8 Bos primigenius indicus) as well as in some Nellore samples (B. p. indicus). Fifty-seven mutations were found in Brangus-Ibage comprising 18 haplotypes (haplotype diversity, h = 0.851 ± 0.041 and nucleotide diversity, ntd = 0.009 ± 0.006) and 66 in Nellore (h = 1.00 ± 0.27, ntd = 0.014 ± 0.012). These data indicated sequence identities of 99.6 and 92.1% between the B. p. taurus' reference sequence and Brangus-Ibage and Nellore, respectively. The comparison of our data with sequence data for 612 individuals recovered from GenBank showed a total of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bovine mtDNA; Maternal lineage; Sequence analysis; Beef cattle; Genetic diversity. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000100011 |
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| Wang,Xiran; Pei,Yu; Dou,Jingtao; Lu,Juming; Li,Jian; Lv,Zhaohui. |
| Osteogenesis imperfecta (OI) is a family of genetic disorders associated with bone loss and fragility. Mutations associated with OI have been found in genes encoding the type I collagen chains. People with OI type I often produce insufficient α1-chain type I collagen because of frameshift, nonsense, or splice site mutations in COL1A1 or COL1A2. This report is of a Chinese daughter and mother who had both experienced two bone fractures. Because skeletal fragility is predominantly inherited, we focused on identifying mutations in COL1A1 and COL1A2 genes. A novel mutation in COL1A1, c.700delG, was detected by genomic DNA sequencing in the mother and daughter, but not in their relatives. The identification of this mutation led to the conclusion that they were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Osteogenesis imperfecta; Chinese OI type 1 family; Type I collagen; Sequence analysis; Frameshift mutation. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000100001 |
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| Zhu, Z.X.; Zhuang, W.Y.. |
| Stromata of Trichoderma species having green ascospores were collected in various regions of China. Based on morphology of the sexual and asexual morph, culture characteristics, and sequence analyses of rpb2 and tef1 genes, 17 species with green ascospores were identified. Among them, Trichoderma rosulatum, T. rufobrunneum and T. stipitatum are described as new species, and seven other species are reported for the first time from China. Trichoderma rosulatum produces small bright yellow or pale greenish stromata with dense dark green ostioles and gliocladium-like conidiophores, shows a close relationship to T. thelephoricola, and belongs to the Chlorospora clade. Trichoderma rufobrunneum, which typically forms reddish brown stromata, is recognised as a... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Ascomycota; Hypocreales; ITS; Morphology; Rpb2; Sequence analysis; Systematics; Tef1. |
| Ano: 2015 |
URL: http://www.repository.naturalis.nl/record/560056 |
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| Réblová, M.; Réblová, K.; Štěpánek, V.. |
| Thirteen morphologically similar strains of barbatosphaeria- and tectonidula-like fungi were studied based on the comparison of cultural and morphological features of sexual and asexual morphs and phylogenetic analyses of five nuclear loci, i.e. internal transcribed spacer rDNA operon (ITS), large and small subunit nuclear ribosomal DNA, β-tubulin, and second largest subunit of RNA polymerase II. Phylogenetic results were supported by in-depth comparative analyses of common core secondary structure of ITS1 and ITS2 in all strains and the identification of non-conserved, co-evolving nucleotides that maintain base pairing in the RNA transcript. Barbatosphaeria is defined as a well-supported monophyletic clade comprising several lineages and is placed in the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Phylogenetics; Ramichloridium; Sequence analysis; Spacer regions; Sporothrix; Tectonidula. |
| Ano: 2015 |
URL: http://www.repository.naturalis.nl/record/588698 |
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| Liu,YongHong; Yang,Bo; Li,XianQiang; Wang,XueFeng; Zhang,LuYao; Li,Fei; Zhao,Li. |
| ABSTRACT In China, Peste des petits ruminants (PPR) was officially first reported in 2007. From 2010 until the outbreak of 2013, PPRV infection was not reported. In November 2013, PPRV re-emerged in Xinjiang and rapidly spread to 22 P/A/M (provinces, autonomous regions and municipalities) of China. In the study, suspected PPRV-infected sheep in a breeding farm of South Xinjiang in 2014 were diagnosed and the characteristics of complete sequence of N protein gene of PPRV was analyzed. The sheep showed PPRV-infected signs, such as fever, orinasal secretions increase, dyspnea and diarrhea, with 60% of morbidity and 21.1% of fatality rate. The macroscopic lesions after autopsy and histopathological changes were observed under light microscope including... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: PPR; Diagnosis; N gene; Sequence analysis. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000501105 |
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| Khatoon,Lubna; Baliraine,Frederick N.; Malik,Salman A.; Yan,Guiyun. |
| Plasmodium vivax and Plasmodium falciparum are becoming resistant to drugs including antifolates, sulphonamides and chloroquine. This study was focused at sequence analysis of resistant genes of these parasites against sulphadoxine-pyrimethamine and chloroquine, from Bannu, Pakistan. Known mutations were detected at codons 57, 58 and 117 of pvdhfr gene of P. vivax, while none of the isolates had any pvdhps mutation. Similarly P. falciparum isolates exhibited double 59R + 108N mutations in pfdhfr, and single 437G in pfdhps thus demonstrating the existance of triple mutant 59R + 108N + 437G haplotype in this region. The key chloroquine resistance mutation, 76T in pfcrt was observed in 100% of the P. falciparum isolates, with haplotype SVMNT which is also... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Plasmodium vivax; Plasmodium falciparum; Sequence analysis; Pakistan. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702013000500013 |
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| Streck,André Felipe; Souza,Carine Kunzler de; Gonçalves,Karla Rathje; Zang,Luciana; Pinto,Luciane Dubina; Canal,Cláudio Wageck. |
| The presence of canine parvovirus type 2 (CPV-2), 2a and 2b has been described in Brazil, however, the type 2c had not been reported until now. In the current study, seven out of nine samples from dogs with diarrhea were characterized as CPV-2c, indicating that this virus is already circulating in the Brazilian canine population. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Canine parvovirus type 2c; Sequence analysis; Brazil. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000300008 |
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| Castro,T.X.; Costa,E.M; Leite,J.P.G.; Labarthe,N.V.; Cubel Garcia,R.C.N.. |
| Canine parvovirus (CPV) is the most important enteric virus for dogs and it seems to be undergoing continuous evolution, generating new genetic and antigenic variants throughout the world. The aim of this study was to analyze the distribution of CPV variants from 1995 to 2009 and to investigate the circulation of the new variant CPV-2c in Rio de Janeiro, Brazil. In addition, the clinical features of CPV infection were also reported. After CPV laboratorial confirmation by HA/HI and PCR, thirty-two fecal samples were analyzed by sequencing a 583-bp fragment of the VP2 gene. One sample, collected in 2008 was typed as the new type CPV-2c. All samples from 1995 to 2003 were identified as "new CPV-2a". From 2004 to 2006, both "new CPV-2a" and CPV-2b were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: CPV-2c; Sequence analysis; Enteritis; Rio de Janeiro; Brazil. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000400031 |
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| Registros recuperados: 13 | |
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