Associação de marcadores microssatélites com teores de óleo e proteína em soja

O objetivo deste trabalho foi avaliar a associacao de marcadores microssatelites localizados proximos a locos de caracteres quantitativos (QTL) descritos na literatura, com os teores de oleo e proteina de genotipos de soja cultivados no Brasil. Quarenta e nove genotipos de soja foram avaliados em Vicosa, MG (12/2009); Visconde do Rio Branco, MG (2/2010); e Sao Gotardo, MG (2/2010 e 10/2011). Utilizou-se o delineamento de blocos ao acaso, com tres repeticoes. Os teores de oleo e proteina foram determinados por espectrometria do infravermelho. Foi observada ampla variabilidade genetica para esses teores. Dos 65 marcadores microssatelites testados, 35 apresentaram associacao significativa com pelo menos um dos teores, mas poucos foram consistentes com a mudanca de ambiente. Ao se levar em conta a consistencia da associacao em todos os ambientes, os marcadores Satt239, Satt384 e Satt562 destacam-se para a selecao assistida quanto aos teores de oleo e de proteina, enquanto o Satt310 destaca-se para selecao quanto ao teor de oleo, e o Satt567, quanto ao de proteina.

[1]  Pengyin Chen,et al.  Genetic diversity and association analysis of protein and oil content in food‐grade soybeans from Asia and the United States , 2010 .

[2]  M. A. Moreira,et al.  Mapeamento de QTL para contedos de protena e leo em soja , 2010 .

[3]  I. Schuster,et al.  QTL mapping for protein content in soybean cultivated in two tropical environments , 2008 .

[4]  J. Abe,et al.  Genetic relationship between lipid content and linolenic acid concentration in soybean seeds , 2008 .

[5]  Lijuan Qiu,et al.  Quantitative trait loci underlying the development of seed composition in soybean (Glycine max L. Merr.). , 2007, Genome.

[6]  D. Xin,et al.  QTL Analysis of Major Agronomic Traits in Soybean , 2007 .

[7]  V. Poysa,et al.  Seed and agronomic QTL in low linolenic acid, lipoxygenase-free soybean (Glycine max (L.) Merrill) germplasm. , 2006, Genome.

[8]  James E. Specht,et al.  Fine mapping of a seed protein QTL on soybean linkage group I and its correlated effects on agronomic traits , 2006 .

[9]  A. Saxton,et al.  Quantitative Trait Loci for Seed Protein and Oil Concentration, and Seed Size in Soybean , 2005 .

[10]  V. A. Fasoula,et al.  Validation and Designation of Quantitative Trait Loci for Seed Protein, Seed Oil, and Seed Weight from Two Soybean Populations , 2004 .

[11]  D. Hyten,et al.  Seed quality QTL in a prominent soybean population , 2004, Theoretical and Applied Genetics.

[12]  P. Gresshoff,et al.  Quantitative trait loci for agronomic and seed quality traits in an F2 and F4:6 soybean population , 2003, Euphytica.

[13]  D. Ashley,et al.  Identification of quantitative trait loci for plant height, lodging, and maturity in a soybean population segregating for growth habit , 1996, Theoretical and Applied Genetics.

[14]  R. Shoemaker,et al.  RFLP analysis of soybean seed protein and oil content , 1992, Theoretical and Applied Genetics.

[15]  J. Gai,et al.  QTL mapping of ten agronomic traits on the soybean (Glycine max L. Merr.) genetic map and their association with EST markers , 2004, Theoretical and Applied Genetics.

[16]  K. Harada,et al.  Analysis of Quantitative Trait Loci for Protein and Lipid Contents in Soybean Seeds Using Recombinant Inbred Lines , 2003 .

[17]  James E. Specht,et al.  The Seed Protein, Oil, and Yield QTL on Soybean Linkage Group I , 2003 .

[18]  J. Vollmann,et al.  Seed quality QTLs identified in a molecular map of early maturing soybean , 2001, Theoretical and Applied Genetics.

[19]  James E. Specht,et al.  Soybean response to water : A QTL analysis of drought tolerance , 2001 .

[20]  R. Shoemaker,et al.  Analysis of a Quantitative Trait Locus Allele from Wild Soybean That Increases Seed Protein Concentration in Soybean , 2000 .

[21]  K. Chase,et al.  Genetics of soybean agronomic traits: I. Comparison of three related recombinant inbred populations , 1999 .

[22]  R. Shoemaker,et al.  Mapping QTL for Seed Protein and Oil Content in Eight Soybean Populations , 1997 .