Molecular Marker
Mostrando 25-36 de 1151 artigos, teses e dissertações.
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25. Sequence-related amplified polymorphisms (SRAPs) reveal genetic diversity and variation regions in upland cotton (Gossypium hirsutum L.) in China
Abstract The lack of genetic diversity is an obstacle for genetic improvement of upland cotton in China; thus, new technologies must be developed to produce more polymorphic molecular markers associated with agricultural traits of the existing resources for breeding. A highly efficient and economical technology of sequence-related amplified polymorphism (SRA
Crop Breed. Appl. Biotechnol.. Publicado em: 2018-04
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26. DNA fingerprinting based on SSR amplification profiles for Piper species identification (Piperaceae)
ABSTRACT DNA fingerprinting based on SSR amplification profiles was applied to native species of Piper from the Atlantic Forest to compare the utility of this type of molecular marker with the morphological characters traditionally applied in Piper taxonomy and identification. Fifty-one SSR markers developed for four species of Piper native to Asia and Mesoa
Acta Bot. Bras.. Publicado em: 19/03/2018
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27. Association between molecular markers and behavioral phenotypes in the immatures of a butterfly
Abstract Newly hatched caterpillars of the butterfly Heliconius erato phyllis routinely cannibalize eggs. In a manifestation of kin recognition they cannibalize sibling eggs less frequently than unrelated eggs. Previous work has estimated the heritability of kin recognition in H. erato phyllis to lie between 14 and 48%. It has furthermore been shown that the
Genet. Mol. Biol.. Publicado em: 19/03/2018
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28. Haploid identification using tropicalized haploid inducer progenies in maize
Abstract The aim of this study was to identify maize haploid plants and compare the efficiency of identification of maize haploid plants using the R1-nj morphological marker, plant vigor, flow cytometry, chromosome counting, and microsatellite molecular markers under tropical conditions. We also established a protocol for chromosome duplication in maize hapl
Crop Breed. Appl. Biotechnol.. Publicado em: 2018-03
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29. Trypanosoma janseni n. sp. (Trypanosomatida: Trypanosomatidae) isolated from Didelphis aurita (Mammalia: Didelphidae) in the Atlantic Rainforest of Rio de Janeiro, Brazil: integrative taxonomy and phylogeography within the Trypanosoma cruzi clade
BACKGROUND Didelphis spp. are a South American marsupial species that are among the most ancient hosts for the Trypanosoma spp. OBJECTIVES We characterise a new species (Trypanosoma janseni n. sp.) isolated from the spleen and liver tissues of Didelphis aurita in the Atlantic Rainforest of Rio de Janeiro, Brazil. METHODS The parasites were isolated and a
Mem. Inst. Oswaldo Cruz. Publicado em: 2018-01
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30. Ecological drivers of plant genetic diversity at the southern edge of geographical distributions: Forestal vines in a temperate region
Abstract The Tropical Niche Conservatism hypothesis is one of the most relevant theories to explain why tropical diversity is high, although the mechanisms underlying this hypothesis require further clarification. A possible research avenue to address the underlying mechanisms includes determining population-level processes associated with such a hypothesis,
Genet. Mol. Biol.. Publicado em: 2018
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31. Characterization of air-liquid interface culture of A549 alveolar epithelial cells
Alveolar epithelia play an essential role in maintaining the integrity and homeostasis of lungs, in which alveolar epithelial type II cells (AECII) are a cell type with stem cell potential for epithelial injury repair and regeneration. However, mechanisms behind the physiological and pathological roles of alveolar epithelia in human lungs remain largely unkn
Braz J Med Biol Res. Publicado em: 11/12/2017
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32. Allele dosage of PVY resistance genes in potato clones using molecular markers
Abstract Potato virus Y (PVY) is considered one of the most important pathogens in potato crop. The objective of this study was to estimate the allele dosage of Ry genes and select clones with multiple copies of resistance alleles to be used as parents in potato breeding programs. Seven clonal families were genotyped, including five parents with resistance t
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-12
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33. Introgression of the Rl adg allele of resistance to potato leafroll virus in Solanum tuberosum L.
Abstract Genetic resistance to Potato Leafroll Virus (PLRV) is polygenic, which hinders the obtainment of resistant cultivars. However, works carried out at the International Potato Center have identified an andigena accession, LOP-868, with high resistance level and low accumulation of PLRV due to the gene of major effect Rladg. We verify the transfer of th
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-09
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34. Oleic acid variation and marker-assisted detection of Pervenets mutation in high- and low-oleic sunflower cross
Abstract High-oleic sunflower oil is in high demand on the market due to its heart-healthy properties and richness in monounsaturated fatty acids that makes it more stable in processing than standard sunflower oil. Consequently, one of sunflower breeder’s tasks is to develop stable high-oleic sunflower genotypes that will produce high quality oil. We analy
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-09
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35. Detection and molecular characterisation of a diagnosis escape variant associated with occult hepatitis B virus in Brazil
BACKGROUND Many studies have identified mutations in the hepatitis B surface antigen (HBsAg) as important factors limiting the ability of commercial serological assays to detect this viral antigen. However, an association between mutations in the HBsAg gene and the occurrence of occult HBV infection (OBI) in patients has not been established. OBJECTIVES
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-07
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36. Universal tail sequence-SSR applied to molecular characterization of tropical maize hybrids
ABSTRACT The development of efficient and low-cost genotyping methods is essential to precise genetic characterization of cultivars. Here, we present a system based on fluorescently labeled universal tail sequence primers (UTSP) to resolve microsatellite (SSR) markers as an alternative for molecular fingerprinting of maize. A set of 20 SSRs using the UTSP pr
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-04