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Registro Completo
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
04/02/2015 |
Data da última atualização: |
14/07/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
NASCIMENTO, J. B.; BARRIGOSSI, J. A. F.; BORBA, T. C. de O.; MARTINS, J. F. da S.; FERNANDES, P. M.; MELLO, R. N. de. |
Afiliação: |
JACQUELINE BARBOSA NASCIMENTO, UNIVERSIDADE FEDERAL DE GOIAS; JOSE ALEXANDRE F BARRIGOSSI, CNPAF; TEREZA CRISTINA DE OLIVEIRA BORBA, CNPAF; JOSE FRANCISCO DA SILVA MARTINS, CPACT; PAULO MARÇAL FERNANDES, UNIVERSIDADE FEDERAL DE GOIÁS; RAQUEL NEVES DE MELLO, CNPAF. |
Título: |
Evaluation of rice genotypes for sugarcane borer resistance using phenotypic methods and molecular markers. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Crop Protection, v. 67, p. 43-51, Jan. 2015. |
DOI: |
10.1016/j.cropro.2014.09.018 |
Idioma: |
Inglês |
Conteúdo: |
This study aimed to observe the response of 34 rice accessions to attack by sugarcane borer (Diatraea saccharalis Fabr., 1794) and to analyze the genetic diversity of these accessions by microsatellite markers. Twenty larvae were placed on the leaf sheaths of rice plants. At 30 days after infestation the rice plants at ground level were taken to the laboratory where the signs of borer attack, external and internal diameter of the stem and weight of surviving larvae were determined. For the molecular analysis of rice accessions, 24 microsatellite markers were used. The results of the morphological traits of the rice plant, response of the plant to insect attack, development of the sugarcane borer larvae and molecular data, indicated a genotypic variation. The accessions that most favored larval survival were IAC 47 and Ti Ho Hung. Larvae with highest weight (0.0986 g and 0.0862 g) and the largest internal diameters of the rice stem (3.18 mm) were found in land races ?Canela de Ferro? (rust colored stem) and all these ?Canela de Ferro? accessions also remained genetically grouped. The most tolerant materials, based on the ability to produce new tillers after larval infestation were, Chiang an Tsao Pai Ku and IR 40 which remained morphological and genetically grouped. The results of this study indicate that all the traits and molecular analyses were able to separate the accessions of rice into different groups in relation to resistance to the sugarcane borer. These materials can be used as donor sources in breeding for genetic resistance to sugarcane borers and can be used as donors to amplify the genetic base of Brazilian rice. MenosThis study aimed to observe the response of 34 rice accessions to attack by sugarcane borer (Diatraea saccharalis Fabr., 1794) and to analyze the genetic diversity of these accessions by microsatellite markers. Twenty larvae were placed on the leaf sheaths of rice plants. At 30 days after infestation the rice plants at ground level were taken to the laboratory where the signs of borer attack, external and internal diameter of the stem and weight of surviving larvae were determined. For the molecular analysis of rice accessions, 24 microsatellite markers were used. The results of the morphological traits of the rice plant, response of the plant to insect attack, development of the sugarcane borer larvae and molecular data, indicated a genotypic variation. The accessions that most favored larval survival were IAC 47 and Ti Ho Hung. Larvae with highest weight (0.0986 g and 0.0862 g) and the largest internal diameters of the rice stem (3.18 mm) were found in land races ?Canela de Ferro? (rust colored stem) and all these ?Canela de Ferro? accessions also remained genetically grouped. The most tolerant materials, based on the ability to produce new tillers after larval infestation were, Chiang an Tsao Pai Ku and IR 40 which remained morphological and genetically grouped. The results of this study indicate that all the traits and molecular analyses were able to separate the accessions of rice into different groups in relation to resistance to the sugarcane borer. These materials ca... Mostrar Tudo |
Palavras-Chave: |
Insect resistance; Morphological traits; SSR markers. |
Thesagro: |
Arroz; Broca; Diatraea saccharalis; Inseto; Oryza sativa; Praga de planta. |
Thesaurus NAL: |
Genetic variation; Microsatellite repeats; Pest resistance; Rice. |
Categoria do assunto: |
O Insetos e Entomologia |
Marc: |
LEADER 02669naa a2200349 a 4500 001 2007728 005 2015-07-14 008 2015 bl uuuu u00u1 u #d 024 7 $a10.1016/j.cropro.2014.09.018$2DOI 100 1 $aNASCIMENTO, J. B. 245 $aEvaluation of rice genotypes for sugarcane borer resistance using phenotypic methods and molecular markers.$h[electronic resource] 260 $c2015 520 $aThis study aimed to observe the response of 34 rice accessions to attack by sugarcane borer (Diatraea saccharalis Fabr., 1794) and to analyze the genetic diversity of these accessions by microsatellite markers. Twenty larvae were placed on the leaf sheaths of rice plants. At 30 days after infestation the rice plants at ground level were taken to the laboratory where the signs of borer attack, external and internal diameter of the stem and weight of surviving larvae were determined. For the molecular analysis of rice accessions, 24 microsatellite markers were used. The results of the morphological traits of the rice plant, response of the plant to insect attack, development of the sugarcane borer larvae and molecular data, indicated a genotypic variation. The accessions that most favored larval survival were IAC 47 and Ti Ho Hung. Larvae with highest weight (0.0986 g and 0.0862 g) and the largest internal diameters of the rice stem (3.18 mm) were found in land races ?Canela de Ferro? (rust colored stem) and all these ?Canela de Ferro? accessions also remained genetically grouped. The most tolerant materials, based on the ability to produce new tillers after larval infestation were, Chiang an Tsao Pai Ku and IR 40 which remained morphological and genetically grouped. The results of this study indicate that all the traits and molecular analyses were able to separate the accessions of rice into different groups in relation to resistance to the sugarcane borer. These materials can be used as donor sources in breeding for genetic resistance to sugarcane borers and can be used as donors to amplify the genetic base of Brazilian rice. 650 $aGenetic variation 650 $aMicrosatellite repeats 650 $aPest resistance 650 $aRice 650 $aArroz 650 $aBroca 650 $aDiatraea saccharalis 650 $aInseto 650 $aOryza sativa 650 $aPraga de planta 653 $aInsect resistance 653 $aMorphological traits 653 $aSSR markers 700 1 $aBARRIGOSSI, J. A. F. 700 1 $aBORBA, T. C. de O. 700 1 $aMARTINS, J. F. da S. 700 1 $aFERNANDES, P. M. 700 1 $aMELLO, R. N. de 773 $tCrop Protection$gv. 67, p. 43-51, Jan. 2015.
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