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Dive into the research topics where C. T. Guimaraes is active.

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Featured researches published by C. T. Guimaraes.


Scientific Reports | 2018

Exploiting sorghum genetic diversity for enhanced aluminum tolerance: allele mining based on the AltSB locus.

Barbara Hufnagel; C. T. Guimaraes; Eric Craft; Jon E. Shaff; R. E. Schaffert; Leon V. Kochian; Jurandir V. Magalhaes

Root damage due to aluminum (Al) toxicity restricts crop production on acidic soils, which are extensive in the tropics. The sorghum root Al-activated citrate transporter, SbMATE, underlies the Al tolerance locus, AltSB, and increases grain yield under Al toxicity. Here, AltSB loci associated with Al tolerance were converted into Amplification Refractory Mutation System (ARMS) markers, which are cost effective and easy to use. A DNA pooling strategy allowed us to identify accessions harboring rare favorable AltSB alleles in three germplasm sets while greatly reducing genotyping needs. Population structure analysis revealed that favorable AltSB alleles are predominantly found in subpopulations enriched with guinea sorghums, supporting a possible Western African origin of AltSB. The efficiency of allele mining in recovering Al tolerance accessions was the highest in the largest and highly diverse germplasm set, with a 10-fold reduction in the number of accessions that would need to be phenotyped in the absence of marker information. Finally, Al tolerant accessions were found to rely on SbMATE to exclude Al3+ from sensitive sites in the root apex. This study emphasizes gene-specific markers as important tools for efficiently mining useful rare alleles in diverse germplasm, bridging genetic resource conservation efforts and pre-breeding for Al tolerance.


Maydica | 2010

Inheritance and breeding strategies for phosphorus efficiency in tropical maize (Zea mays L.).

Sidney Netto Parentoni; C. L. de Souza Júnior; V. M. de C. Alves; Elto Eugenio Gomes e Gama; A. M. Coelho; A. C. de Oliveira; Paulo Evaristo de Oliveira Guimarães; C. T. Guimaraes; Marileide Januária Vasconcelos; Cleso Antônio Patto Pacheco; W. F. Meirelles; J. V. de Magalhães; Lauro José Moreira Guimarães; A. R. da Silva; F. F. Mendes; R. E. Schaffert


Journal of Phytopathology | 2012

Detection and Molecular Diversity of Pantoea ananatis Associated with White Spot Disease in Maize, Sorghum and Crabgrass in Brazil

Ubiraci Gomes de Paula Lana; Eliane Aparecida Gomes; Dagma Dionísia da Silva; Rodrigo Véras da Costa; Luciano Viana Cota; Douglas Ferreira Parreira; Isabel Regina Prazeres De Souza; C. T. Guimaraes


Archive | 2010

Marcadores moleculares e suas aplicações no melhoramento genético.

C. T. Guimaraes; J. V. de Magalhaes; M. A. Lanza; I. Schuster


Archive | 2010

Produção de haplóides androgenéticos em milho.

G. J. da S. Silva; C. T. Guimaraes; S. N. Parentoni; M. Rabel; U. G. de P. Lana; Edilson Paiva


Archive | 2018

Enhancing phosphorus efficiency in maize and sorghum.

S. M. de Sousa; B. Hufnagel; G. C. Azevedo; S. M. Lopes; B. F. Negri; U. G. P. Lana; B. A. Barros; M. C. Alves; A. A. Carneiro; C. T. Guimaraes; Jurandir V. Magalhaes


Archive | 2017

Morphological characterization of two sorghum diversity panels grown in nutrient solution with low phosphorus.

B. F. Negri; C. A. G. Ribeiro; B. Hufnagel; C. T. Guimaraes; Jurandir V. Magalhaes; S. M. de Sousa


Archive | 2017

Phenotyping is essential to enhance phosphorus efficiency in maize and sorghum.

S. M. de Sousa; B. Hufnagel; G. C. Azevedo; C. T. Guimaraes; Jurandir V. Magalhaes


Archive | 2017

Escaneamento genômico para tolerância à seca em sorgo.

J. V. de Magalhaes; M. M. Pastina; R. Gazaffi; C. B. de Menezes; J. R. B. F. Rosa; C. T. Guimaraes; F. D. Tardin; R. E. Schaffert; Reinaldo L. Gomide; C. de L. T. de Andrade; P. E. P. de Albuquerque; E. A. Bastos; M. J. Cardoso


Archive | 2017

Cloning and characterization of the gene expression profiles of maize phosphorus-starvation tolerance 1 genes.

N. F. Ferreira; B. F. Negri; C. T. Guimaraes; S. M. de Sousa

Collaboration


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R. E. Schaffert

Empresa Brasileira de Pesquisa Agropecuária

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B. F. Negri

Universidade Federal de São João del-Rei

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Jurandir V. Magalhaes

Empresa Brasileira de Pesquisa Agropecuária

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S. N. Parentoni

Empresa Brasileira de Pesquisa Agropecuária

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V. M. C. Alves

Empresa Brasileira de Pesquisa Agropecuária

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A. A. Carneiro

Empresa Brasileira de Pesquisa Agropecuária

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G. C. Azevedo

Universidade Federal de Minas Gerais

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M. C. Alves

Pontifícia Universidade Católica de Campinas

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M. M. Pastina

Empresa Brasileira de Pesquisa Agropecuária

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U. G. P. Lana

Empresa Brasileira de Pesquisa Agropecuária

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