Mtdna
Mostrando 13-24 de 927 artigos, teses e dissertações.
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13. Variação de sequências de D-Loop Mitocondrial entre Pato Central Java na Indonésia
RESUMO. Este estudo foi realizado para determinar a variação genética do pato de Java Central baseado no D-Loop mtDNA. A D-Loop foi amplificada utilizando a técnica de PCR com primer específico e sequenciado usando o método de terminação dideoxi com sequenciador ITB automático. ClustalW do programa software de MEGA-6.06 foi utilizado para alinhament
Acta Sci., Anim. Sci.. Publicado em: 2017-12
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14. Crescimento, mortalidade e susceptibilidade de ostras Crassostrea spp. à infecção por Perkinsus spp. em cultivo no Nordeste do Brasil
Resumo Crassostrea rhizophorae e C. gasar são cultivadas na região Nordeste. Parasitas Perkinsus infectam bivalves e seus efeitos em ostras de regiões tropicais são pouco compreendidos. Este estudo avaliou o impacto da infecção por Perkinsus em parâmetros de produção de ostras nativas. Ostras foram coletadas bimestralmente durante 7 meses, de julho
Rev. Bras. Parasitol. Vet.. Publicado em: 09/11/2017
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15. Growth hormone insensitivity with immune dysfunction caused by a STAT5B mutation in the south of Brazil: evidence for a founder effect
ABSTRACT Homozygous STAT5B mutations causing growth hormone insensitivity with immune dysfunction were described in 10 patients since 2003, including two Brazilian brothers from the south of Brazil. Our objectives were to evaluate the prevalence of their STAT5B mutation in this region and to analyze the presence of a founder effect. We obtained DNA samples f
Genet. Mol. Biol.. Publicado em: 05/06/2017
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16. Molecular analyses reveal the occurrence of three new sympatric lineages of velvet worms (Onychophora: Peripatidae) in the eastern Amazon basin
Abstract In the present study, we investigated the possible existence of new lineages of peripatids through comparisons between known Neotropical species and specimens obtained from two locations in Pará, a state in eastern Brazilian Amazonia using a molecular approach based on sequences of the mtDNA genes COI, 16Sr RNA, and 18S RNA. The analyses included a
Genet. Mol. Biol.. Publicado em: 02/03/2017
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17. Mitochondrial and Y chromosome genetic diversity in the Portuguese Lidia bovine breed
ABSTRACT A total of 80 samples were collected to analyze the mitochondrial DNA (mtDNA) and Y chromosome genetic diversity of two main Portuguese Lidia bovine populations and clarify their genetic relationships with Spanish Lidia lineages. A 521-bp D-loop fragment was sequenced in 40 animals belonging to four herds (three Brava dos Açores and one Casta Portu
R. Bras. Zootec.. Publicado em: 2017-02
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18. Uniparental ancestry markers in Chilean populations
Abstract The presence of Native Americans, Europeans, and Africans has led to the development of a multi-ethnic, admixed population in Chile. This study aimed to contribute to the characterization of the uniparental genetic structure of three Chilean regions. Newborns from seven hospitals in Independencia, Providencia, Santiago, Curicó, Cauquenes, Valdívia
Genet. Mol. Biol.. Publicado em: 04/08/2016
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19. Molecular assessment of the phylogeny and biogeography of a recently diversified endemic group of South American canids (Mammalia: Carnivora: Canidae)
Abstract To investigate the evolution and biogeography of an endemic group of South American foxes, we examined mitochondrial DNA control region sequences for 118 individuals belonging to all six extant species of the genus Lycalopex. Phylogenetic and molecular dating analyses supported the inference that this genus has undergone a very recent and rapid radi
Genet. Mol. Biol.. Publicado em: 25/07/2016
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20. High interpopulation homogeneity in Central Argentina as assessed by Ancestry Informative Markers (AIMs)
The population of Argentina has already been studied with regard to several genetic markers, but much more data are needed for the appropriate definition of its genetic profile. This study aimed at investigating the admixture patterns and genetic structure in Central Argentina, using biparental markers and comparing the results with those previously obtained
Genet. Mol. Biol.. Publicado em: 2015-09
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21. Phylogenetic incongruence inferred with two mitochondrial genes in Mepraia spp. and Triatoma eratyrusiformis (Hemiptera, Reduviidae)
Mitochondrial DNA (mtDNA) is widely used to clarify phylogenetic relationships among and within species, and to determine population structure. Due to the linked nature of mtDNA genes it is expected that different genes will show similar results. Phylogenetic incongruence using mtDNA genes may result from processes such as heteroplasmy, nuclear integration o
Genet. Mol. Biol.. Publicado em: 21/08/2015
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22. Origens e dinâmica demográfica da expansão Tupi: uma história genética
Resumo: Grupos linguísticos Tupí exibem uma grande dispersão geográfica na América do Sul, provavelmente originadas, conforme apontada pela linguistica, na Região Madeira-Guaporé (MGR), Brasil. O presente estudo revisou dados geneticos de populacoes Tupí para marcadores autossomicos e uniparentais (Y-cromossomo and mtDNA), delineando abordagens para
Bol. Mus. Para. Emílio Goeldi. Ciênc. hum.. Publicado em: 2015-08
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23. Presence of two mitochondrial genomes in the mytilid Perumytilus purpuratus: Phylogenetic evidence for doubly uniparental inheritance
This study presents evidence, using sequences of ribosomal 16S and COI mtDNA, for the presence of two mitochondrial genomes in Perumytilus purpuratus. This may be considered evidence of doubly uniparental mtDNA inheritance. The presence of the two types of mitochondrial genomes differentiates females from males. The F genome was found in the somatic and gona
Genet. Mol. Biol.. Publicado em: 2015-06
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24. Diagnose morfológica e molecular de Pseudoterranova decipiens (sensu stricto) (Anisakidae) em bacalhau importado vendido no Brasil
Uma larva de Nematoda anisakídeo encontrada em bacalhau comercializado no Estado de Minas Gerais, Brasil foi estudada por microscopias de luz e eletrônica de varredura e por uma abordagem molecular. As regiões da subunidade 2 da citocromo c-oxidase mitocondrial (mtDNA cox-2), 28S rRNA e ITS1, 5.8S e ITS2 foram amplificadas usando a reação em cadeia da p
Rev. Bras. Parasitol. Vet.. Publicado em: 2015-06