367-1 Genetic Diversity Among Soybean Genotypes Intended for Human Consumption and Cyst Nematode-Resistant to Composition Hybridizations.

Poster Number 213

See more from this Division: C01 Crop Breeding & Genetics
See more from this Session: General Crop Breeding and Genetics: II

Wednesday, November 6, 2013
Tampa Convention Center, East Exhibit Hall

Lilian Cristina Andrade de Araújo1, Sandra Helena Unêda-Trevisoli2, Viviane Formice Vianna2, Fabiana Mota da Silva2, Ana Cristina Pinto Juhasz3 and Daniel Carvalho Leite4, (1)Produção Vegetal, Universidade Estadual Paulista, Jaboticabal, SP, Brazil
(2)Produção Vegetal, Universidade Estadual Paulista "Júlio de Mesquita Filho", Jaboticabal, SP, Brazil
(3)Empresa de Pesquisa Agropecuária de Minas Gerais, Uberaba, MG, Brazil
(4)Agronomic Engineering, Centro Universitario Toledo Araçatuba, Araçatuba, BRAZIL
Soybean (Glycine max (L.) Merrill) is an annual legume that has different purposes, among them, a growing strand relates to the direct use human consumption. There is demand for soybean cultivars with this allocation showing improvement in flavor, appearance and texture of grains, and also resistance to numerous pathogens and pests. In particular stands the cyst nematode (Heterodera glycines) that causes significant loss in yield. In view of this, the objective of this work was to evaluate the promising parental with genetic diversity for these traits, allowing the identification of satisfactory contrasting parental for artificial hybridization, resulting in greater genetic variability. For this purpose, 35 Simple Sequence Repeat (SSR) markers were used, distributed over the 20 linkage groups, to assess the genetic diversity of 32 soybean genotypes owned by the soybean germplasm bank for human consumption of a governmental research company (EMBRAPA/EPAMIG/Fundação Triângulo). The SSR markers were assessed using 3% (w/v) agarose gels stained with ethidium bromide. All analyzed loci were polymorphic, and 101 alleles were found. Data were analyzed by hierarchical clustering method using the Euclidean distance and the connection between groups by Ward's method. The constructed dendrogram indicate high genetic diversity among the evaluated genotypes. Using a random criterion Euclidean distance between a maximum of 13,5 linkage distance, there was formation of 4 distinct groups. Therefore, crosses between BRSMG 810C (Soybean cyst nematode-resistant cultivar) x BRSMG 790A (human consumption cultivar with yellow seed coat); and BRSMG 810C x BRSMG 800A (human consumption cultivar with brown seed coat) are promising for hybridization considering genetic diversity. Through this analysis will be possible recommend hybrid combinations that explore the variability according to desired attributes for plant breeding.

See more from this Division: C01 Crop Breeding & Genetics
See more from this Session: General Crop Breeding and Genetics: II

Previous Abstract | Next Abstract >>