Markers Assisted Selection
Mostrando 13-24 de 86 artigos, teses e dissertações.
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13. A multiplex PCR system for detection of wide compatibility allele S5-n and erect panicle allele dep1 in rice
Abstract Wide compatibility and erect panicles are important traits for heterosis and ideal plant type breeding in rice and accordingly are targets for rice yield improvement. In this study, a multiplex PCR system based on functional markers was developed to simultaneously identify genotypes of the wide compatibility allele S5-n and the erect panicle allele
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-09
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14. Behavior of grape breeding lines with distinct resistance alleles to downy mildew (Plasmopara viticola)
Abstract Downy mildew (Plasmopara viticola) is the main grapevine disease in humid regions. In the present investigation, marker-assisted selection (MAS) was used to develop grapevine lines homozygous in loci Rpv1 and Rpv3 for resistance against P. viticola. The experimental populations UFSC-2013-1 (n = 420) and UFSC-2013-2 (n = 237) were obtained by self-po
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-06
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15. Linkage and mapping of quantitative trait loci associated with angular leaf spot and powdery mildew resistance in common beans
Abstract Angular leaf spot (ALS) and powdery mildew (PWM) are two important fungi diseases causing significant yield losses in common beans. In this study, a new genetic linkage map was constructed using single sequence repeats (SSRs) and single nucleotide polymorphisms (SNPs), in a segregating population derived from the AND 277 x SEA 5 cross, with 105 reco
Genet. Mol. Biol.. Publicado em: 20/02/2017
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16. QTL mapping for yield components and agronomic traits in a Brazilian soybean population
Abstract The objective of this work was to map QTL for agronomic traits in a Brazilian soybean population. For this, 207 F2:3 progenies from the cross CS3035PTA276-1-5-2 x UFVS2012 were genotyped and cultivated in Viçosa-MG, using randomized block design with three replications. QTL detection was carried out by linear regression and composite interval mappi
Crop Breed. Appl. Biotechnol.. Publicado em: 2016-12
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17. Genome-wide association study of drought-related resistance traits in Aegilops tauschii
Abstract The D-genome progenitor of wheat (Triticum aestivum), Aegilops tauschii, possesses numerous genes for resistance to abiotic stresses, including drought. Therefore, information on the genetic architecture of A. tauschii can aid the development of drought-resistant wheat varieties. Here, we evaluated 13 traits in 373 A. tauschii accessions grown under
Genet. Mol. Biol.. Publicado em: 07/07/2016
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18. Novel single nucleotide polymorphisms in candidate genes for growth in tilapia ( Oreochromis niloticus )
ABSTRACT The objective of the present work was to identify and validate single nucleotide variations located in candidate genes to growth traits in tilapia (Oreochromis niloticus). Two transitions were identified in the promoter region of the growth hormone gene (GH); eight nucleotide changes were identified in introns and promoter region of the IGF-I gene;
R. Bras. Zootec.. Publicado em: 2016-06
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19. Genome selection in fruit breeding: application to table grapes
ABSTRACT Genomic selection (GS) has recently been proposed as a new selection strategy which represents an innovative paradigm in crop improvement, now widely adopted in animal breeding. Genomic selection relies on phenotyping and high-density genotyping of a sufficiently large and representative sample of the target breeding population, so that the majority
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-04
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20. Molecular-assisted selection for resistance to cassava mosaic disease in Manihot esculenta Crantz
The geminivirus complex known as cassava mosaic disease (CMD) is one of the most devastating viruses for cassava (Manihot esculenta Crantz). The aim of this study was to use molecular-assisted selection (MAS) to identify CMD-resistant accessions and ascertain promising crosses with elite Brazilian varieties. One thousand two hundred twenty-four accessions we
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-12
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21. Inheritance patterns and identification of microsatellite markers linked to the rice blast resistance in BC2F1 population of rice breeding
The BC2F1 population was derived from a cross between rice variety, MR219 (susceptible to blast) and Pongsu Seribu 1 (resistant to blast). The objectives of this research were to know the inheritance pattern of blast resistance and to identify the linked markers associated with blast resistance in BC2F1 population. Sixteen microsatellite markers were found a
Bragantia. Publicado em: 2015-03
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22. Caracterizacion y analisis de la variabilidad genética de la granadilla (Passiflora ligularis juss.) en Colombia empleando marcadores microsatélites
Sweet passion fruit is the second economically important species of the genus Passiflora and Colombia is the largest producer in the world with 53,000 t/year. There are however, few studies on intraspecific diversity within the species that establish genetic relationships between individuals. The objective of this research was to explore the genetic variabil
Rev. Bras. Frutic.. Publicado em: 2014-09
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23. Incorporação de informações de marcadores genéticos em programas de melhoramento genético de bovinos de corte / Incorporation of genetic markers information in beef cattle breeding programs
A disponibilidade de informações baseadas nos marcadores genéticos surgiu como oportunidade de aprimorar os programas de melhoramento animal pela incorporação desses efeitos nas avaliações genéticas. Nesse contexto, o presente estudo teve como objetivos comparar modelos que consideraram ou não os efeitos dos marcadores para a estimação dos valores
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/05/2012
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24. Association of TLR4 polymorphisms with subclinical mastitis in Brazilian holsteins
The identification of dairy cows with greater or lower potential to develop mastits has been pursued for many years among different segments of the milk industry, including governmental organizations. Genomic studies have suggested that Single Nucleotide Polymorphisms (SNPs) within the pattern recognition receptors (PRR) could lead to different responses to
Brazilian Journal of Microbiology. Publicado em: 2012-06