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Genetic study and QTLs mapping in soybean populations from food type x type grain topcross

Grant number: 15/00407-9
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): May 01, 2015
Effective date (End): December 31, 2017
Field of knowledge:Agronomical Sciences - Agronomy - Crop Science
Acordo de Cooperação: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal Investigator:Sandra Helena Unêda-Trevisoli
Grantee:Cleber Vinicius Giaretta Azevedo
Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil


To accord the needs of a new food type soybean cultivars patients with resistance to soybean cyst nematode (SCN) race 3, this work aims the advancement of two soybean populations progenies derived from topcrosses between genotypes type food type x grain. These populations are found in the F3 generation and will be advanced to the generation F6 with selecting superior genotypes. The evaluated data are: plant height at maturity (APM), first pod height (AIV), lodging (Ac), agronomic value (VA), number of pods per plant (NV), number of days to flowering (NDF), days to maturity (NDM), total number of seed pods formed (NV); 100 seed weight (PCS), grain yield (PG), tegument color (CT) and staining the heel (CH). Genetic parameters will be selected the upper and estimated progenies: additive genetic variance and dominance, genetic variance among progenies, genetic variance within progenies , broad sense heritability and restricted, for the average family and the estimated gain with the selection (GS) through the mixed model REML / BLUP. Moreover, there will be the mapping of QTLs associated with resistance to NCS (class 3) for these two populations, which were obtained from contrasting parents for resistance to NCS. From phenotypic data of genotypes in F2 and genotypic generated by SNPs markers will be held the construction of the genetic map link to the F2 population and subsequently identify associated QTLs with resistance to SCN. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
GIARETTA AZEVEDO, CLEBER VINICIUS; PEDROSO VAL, BRUNO HENRIQUE; ANDRADE DE ARAUJO, LILIAN CRISTINA; PINTO JUHASZ, ANA CRISTINA; DI MAURO, ANTONIO ORLANDO; UNEDA-TREVISOLI, SANDRA HELENA. Genetic parameters of soybean populations obtained from crosses between grain and food genotypes. Acta Scientiarum. Agronomy, v. 43, . (15/00407-9)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
AZEVEDO, Cleber Vinicius Giaretta. Genetic study and validation of molecular markers associated with cyst nematode in soybean populations.. 2018. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Ciências Agrárias e Veterinárias. Jaboticabal Jaboticabal.

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