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Marker-assisted backcrossing using microsatellites and validation of SCAR Phs marker for resistance to white mold in common bean
Indexado
WoS WOS:000288177100013
Scopus SCOPUS_ID:79960780373
SciELO S0717-34582010000600009
DOI 10.2225/VOL13-ISSUE6-FULLTEXT-13
Año 2010
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



Molecular markers may accelerate selection through the identification of plants with higher proportion of recurrent parent genome, as well as identifying those plants bearing target alleles like quantitative traits loci (QTLs) for white mold resistance. The objectives of this work were: 1) to employ microsatellite markers (SSR) in order to accelerate the recovery of recurrent parent genome 2) to validate sequence characterized amplified region (SCAR) Phs associated with a QTL that confers resistance to white mold, as previously identified in bean populations. Lines G122 and M20 were crossed, which generated 267 F-1 plants from backcross (BC) BC1 and 113 plants from backcross BC2.SSR polymorphic markers were adopted. The relationship between BC plants and the recurrent parent was estimated based on the recurrent genome proportion (PR) in each BC plant, and the Sorensen-Dice genetic similarity (sg(ir)). To determine how much the phenotypic variation is explained by SCAR Phs, 56 F1:2BC1 progenies were evaluated on the field following a random block design with two replications through the straw test method. SSR markers are efficient in identifying individuals with a greater proportion of the recurrent genome. SCAR Phs was not efficient for the indirect selection of common beans for white mold resistance.

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Disciplinas de Investigación



WOS
Biotechnology & Applied Microbiology
Scopus
Biotechnology
Applied Microbiology And Biotechnology
SciELO
Applied Social Sciences
Biological Sciences
Engineering
Exact And Earth Sciences

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



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Autores - Afiliación



Ord. Autor Género Institución - País
1 Carneiro, Flavia Fernandes Mujer Univ Fed Lavras - Brasil
Universidade Federal de Lavras - Brasil
2 dos Santos, Joao Bosco - Univ Fed Lavras - Brasil
Universidade Federal de Lavras - Brasil
2 Santos, João Bosco dos Hombre Universidade Federal de Lavras - Brasil
3 Leite, Monik Evelin - Univ Fed Lavras - Brasil
Universidade Federal de Lavras - Brasil

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Financiamiento



Fuente
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Coordena��o de Aperfei�oamento de Pessoal de N�vel Superior

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Agradecimientos



Agradecimiento
Financial support: Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES).

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