Marker Assisted Selection
Mostrando 25-36 de 96 artigos, teses e dissertações.
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25. Comparative mapping reveals quantitative trait loci that affect spawning time in coho salmon (Oncorhynchus kisutch)
Spawning time in salmonids is a sex-limited quantitative trait that can be modified by selection. In rainbow trout (Oncorhynchus mykiss), various quantitative trait loci (QTL) that affect the expression of this trait have been discovered. In this study, we describe four microsatellite loci associated with two possible spawning time QTL regions in coho salmon
Genetics and Molecular Biology. Publicado em: 2012
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26. Seleção genômica ampla e novos métodos de melhoramento do milho / Genome wide selection and new methods of maize breeding
The evaluation for nutrient efficiency use (UE) generally use destructive methods of the plant, not allowing, depending on the population genetic structure, using those identified as superior in hybridizations. Consequently, there is a reduction in the potential gains with selection. Additionally, some conventional breeding methods, such as the recurrent sel
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/04/2011
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27. Polymorphic microsatellite marker set for Carica papaya L. and its use in molecular-assisted selection.
Conventional methods for the selection of papaya pure lines are time-consuming. Procedures involving the use of molecular markers and the indirect selection of homozygous plants can reduce this time considerably. The objective of this study was to evaluate the informativeness of a microsatellite marker set when used in marker-assisted selection (MAS) for the
Euphytica. Publicado em: 2011
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28. Marker-assisted selection of maintainer lines within an onion tropical population.
2010
Scientia Agrícola. Publicado em: 2011
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29. Identification of a molecular marker linked to apomixis in Brachiaria humidicola (Poaceae)
A bulked segregant analysis using RAPD technique was carried out to identify molecular markers linked to apomixis in a Brachiaria humidicola F1 population that segregated 1 : 1 for the mode of reproduction (apomixis and sexual). A marker related to the apo-locus was found. Segregation data, together with this marker were used to generate a map of the region.
Plant Breeding. Publicado em: 2011
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30. Genomic selection in Eucalyptus: marker assisted selection coming to reality in forest trees.
Genomic selection (GS) involves selection decisions based on genomic breeding values estimated as the sum of the effects of genome-wide markers capturing most QTLs for the target trait(s). GS is revolutionizing breeding practice for complex trait in domestic animals. The same approach and concepts can be readily applied to forest tree breeding. Trees also ha
PLANT & ANIMAL GENOMES CONFERENCE. Publicado em: 2011
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31. Marker-assisted selection for the rice blast resistance gene Pi-ar in a backcross population.
A doubled-haploid (DH) population, obtained by anther culture of F 1 plants from a cross between a highly susceptible rice cultivar Lijiangxintuanheigu and the resistant somaclone (SC09), of the cultivar Araguaia, was used to identify RAPD markers linked to the blast resistance gene Pi-ar. The 86 DH plants, inoculated with the race IB-9 of Magnaporthe oryzae
Crop Breeding and Applied Biotechnology. Publicado em: 2011
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32. Study of simple sequence repeat markers from coffee expressed sequences associated to leaf miner resistance.
The objective of this work was to identify expressed simple sequence repeats (SSR) markers associated to leaf miner resistance in coffee progenies. Identification of SSR markers was accomplished by directed searches on the Brazilian Coffee Expressed Sequence Tags (EST) database. Sequence analysis of 32 selected SSR loci showed that 65% repeats are of tetra-,
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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33. Study of simple sequence repeat markers from coffee expressed sequences associated to leaf miner resistance.
The objective of this work was to identify expressed simple sequence repeats (SSR) markers associated to leaf miner resistance in coffee progenies. Identification of SSR markers was accomplished by directed searches on the Brazilian Coffee Expressed Sequence Tags (EST) database. Sequence analysis of 32 selected SSR loci showed that 65% repeats are of tetra-,
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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34. Development of rice lines with gene introgression from the wild Oryza glumaepatula by the AB-QTL methodology.
Wild rice of the species Oryza glumaepatula is found Brazil and has been used to broaden the genetic basis of irrigated rice populations in Embrapa breeding programmes. The objective of this study was to demonstrate and discuss approaches used in the development of Oryza sativa lines containing genes transferred from Oryza glumaepatula, resulting in introgre
Crop Breeding and Applied Biotechnology. Publicado em: 2011
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35. Inheritance of coffee leaf rust reistance and identification of AFLP markers linked to the resistance gene.
The most important disease of Coffea arabica is coffee leaf rust caused by the fungus Hemileia vastatrix. The purpose of this study was to characterize the inheritance of coffee resistance gene(s) to race II of this pathogen and to identify and map molecular markers linked to this trait. Different populations were used: F2 (160 plants), BCr (20), and BCs (13
EUPHYTICA. Publicado em: 2011
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36. Inheritance of coffee leaf rust reistance and identification of AFLP markers linked to the resistance gene.
The most important disease of Coffea arabica is coffee leaf rust caused by the fungus Hemileia vastatrix. The purpose of this study was to characterize the inheritance of coffee resistance gene(s) to race II of this pathogen and to identify and map molecular markers linked to this trait. Different populations were used: F2 (160 plants), BCr (20), and BCs (13
EUPHYTICA. Publicado em: 2011