Consulta: creatorFacets:"Leite,Monik Evelin"
Registros recuperados: 7
Data/hora: 02/06/2024 16:02:01

Natural selection for efficiency in the use of nitrogen in common bean identified by analysis of microsatellites and grain yield
Provedor de dados: 69
Autores: Leite,Monik Evelin; Lima,Igor Almeida; Pereira,Dyanna Rangel; Santos,João Bosco dos.
This study was carried out in order to verify whether natural selection acts on segregating common bean populations grown in the presence and absence of N, and to verify that natural selection affects the frequency of microsatellite alleles specifically, and in order to identify those that can assist in selection. Four populations from the crosses Ouro Negro x CI-107 and VC-5 x IAPAR-81 were carried forward in bulk to F8 at both levels of N. Ouro Negro and VC-5 are considered stress tolerant to nitrogen and IAPAR-81 and CI-107 responsive. One hundred progenies were obtained from each cross and grown in the presence and absence of N. DNA was extracted from 400 progenies, of which 194 were evaluated in the rainy season and 79 in the winter crop for grain...
Tipo: Journal article
Palavras-chave: Adaptation; Nitrogen use efficiency; Phaseolus vulgaris; SSR markers.
Ano: 2012
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582012000600005

Marker-assisted backcrossing using microsatellites and validation of SCAR Phs marker for resistance to white mold in common bean
Provedor de dados: 69
Autores: Carneiro,Flávia Fernandes; Santos,João Bosco dos; Leite,Monik Evelin.
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 F1 plants from backcross (BC) BC1 and 113 plants from backcross BC2.SSR polymorphic markers were adopted. The relationship between BC plants and...
Tipo: Journal article
Palavras-chave: Backcross; Genetic similarity; Phaseolus vulgaris; SCAR; Sclerotinia sclerotiorum; SSR assisted selection.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000600009

Natural selection in common bean microsatellite alleles and identification of QTLs for grain yield
Provedor de dados: 69
Autores: Leite,Monik Evelin; Santos,João Bosco dos; Carneiro,Flávia Fernandes; Couto,Karla Rodrigues.
Natural selection acts to select better adapted individuals or alleles in segregating population and help plant breeding. The objective of this work was to verify the effect of natural selection on microsatellite alleles as indicators of better adaptation and identification of quantitative trait loci (QTLs) for grain yield. This study evaluated 107 progenies from the F8 and 107 from the F24 generation derived from crossing Carioca MG and ESAL 686 lines, carried out by the bulk method, and evaluated in three different seasons: winter 2001; rainy 2001 and dry 2002. It was utilized 22 polymorphic markers and the natural selection acted in all of them. The frequency of the alleles of the parent Carioca MG, the most adapted, was increased in all of the 22 loci...
Tipo: Journal article
Palavras-chave: Bulk method; Fitness coefficient; Phaseolus vulgaris; SSR markers.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582011000100005

Increasing the resistance of common bean to white mold through recurrent selection
Provedor de dados: 63
Autores: Leite,Monik Evelin; Dias,Juliana Andrade; Souza,Danuza Araujo de; Alves,Filipe Couto; Pinheiro,Lucas Rezende; Santos,João Bosco dos.
ABSTRACT White mold, caused by Sclerotinea sclerotiorum (Lib.) de Bary is one of the most important diseases of the common bean (Phaseolus vulgaris L.) worldwide. Physiological resistance and traits related to disease avoidance such as architecture contribute to field resistance. The aim of this study was to verify the efficiency of recurrent selection in physiological resistance to white mold, “Carioca” grain type and upright habit in common bean. Thirteen common bean lines with partial resistance to white mold were intercrossed by means of a circulant diallel table, and seven recurrent selection cycles were obtained. Of these cycles, progenies of the S0:1, S0:2 and S0:3 generations of cycles III, IV, V and VI were evaluated. The best (8 to 10) progenies...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sclerotinia sclerotiorum; Phaseolus vulgaris; Genetic resistance; Genetic progress.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000100071

Reaction of common bean progenies to white mold derived from recurrent selection
Provedor de dados: 65
Autores: Souza,Danuza Araújo de; Pereira,Fernanda Aparecida Castro; Dias,Juliana Andrade; Leite,Monik Evelin; Santos,João Bosco dos.
This study was realized with the objective of verifying the resistance to white mold of common bean progenies derived from recurrent selection for resistance to angular leaf spot. The plant material used was obtained from a program of recurrent selection, which was started by crossing seven lines with carioca grain type with ten sources of resistance to angular leaf spot according to the partial diallel scheme. To evaluate the resistance to white mold, it was verified the reaction of 17 parents plus 35 selected progenies, to oxalic acid. Huge heterogeneity among the parents was observed, showing that some of them have resistance alleles to white mold, and thus, there is a possibility of recombine these alleles through the recurrent selection and obtaining...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Oxalic acid; Physiological resistance.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000400001

Seleção assistida por marcadores para teor de matéria seca e açúcares redutores em tubérculos de batata
Provedor de dados: 65
Autores: Bhering,Leonardo Lopes; Pinto,César Augusto Brasil Pereira; Benites,Flávio Rodrigo Gandolfi; Leite,Monik Evelin; Silva,Felipe Lopes da.
A seleção precoce de clones que possuam níveis elevados de matéria seca e baixos teores de açúcares redutores é uma necessidade nos programas de melhoramento para a qualidade de processamento da batata (Solanum tuberosum L.) na forma de palitos fritos ou chips. A seleção precoce tornou-se possível com a utilização de marcadores genéticos, visto que permitem a identificação precisa de indivíduos superiores. Assim, procura-se cada vez mais encontrar marcadores capazes de caracterizar tais indivíduos e utilizá-los via seleção assistida. O objetivo deste trabalho foi avaliar a eficiência da seleção assistida, utilizando os marcadores identificados por ANDREU (2004) que estariam associados ao teor de matéria seca e açúcares redutores em tubérculos de batata....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum tuberosum L.; Seleção precoce; Qualidades de tubérculos.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782009000100007

Seleção de famílias de feijoeiro baseada na produtividade, no tipo de grãos e informações de QTLs
Provedor de dados: 64
Autores: Torga,Paula Pereira; Santos,João Bosco dos; Pereira,Helton Santos; Ferreira,Daniel Furtado; Leite,Monik Evelin.
Objetivou-se neste trabalho, selecionar famílias de feijoeiro promissoras para a produtividade de grãos com tipo de grãos ideal utilizando informações fenotípicas e de marcadores moleculares ligados a QTLs. Foram utilizadas 100 famílias F3:7, avaliadas em três safras, com dois experimentos/safra, totalizando seis experimentos. A primeira safra foi a da seca/2007, na qual conduziu-se um experimento em Lavras-MG e o outro em Ijaci-MG. Nas safras de inverno/2007 e águas 2007/2008, foram conduzidos, em cada uma, um experimento em Lavras-MG e outro em Lambari-MG. Em todos eles foi utilizado o delineamento látice triplo 10x10, com parcelas de duas linhas de dois metros. As famílias foram avaliadas pela sua produtividade de grãos. Em apenas um dos experimentos de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Linhagens; Seleção assistida por marcadores; Seleção fenotípica; Microssatélites.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542010000100012