Identification of genomic regions associated with iron and zinc content in common bean seeds using associative mapping

• Grant number: 14/06647-9
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: August 01, 2014
• End date: July 31, 2016
• Field of knowledge: Agronomical Sciences - Agronomy
• Agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
• Principal Investigator: Maria Lúcia Carneiro Vieira
• Grantee: Augusto Lima Diniz
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil

Abstract

The common bean is one of the most traditional foods consumed by the Brazilian population. It is essential to human nutrition due to its energy and protein content. Moreover, beans are an excellent source of essential nutrients such as iron and zinc, therefore the crop has been a good target for biofortification in order to increase the amount of these nutrients in the human diet. Remarkably, the germplasm has sufficient variability to achieve this purpose. Furthermore, the selection of genotypes with high iron and zinc may also be effective for increasing the content of other nutrients, since positive and significant correlations were detected. The identification of superior genotypes but also genomic regions involved in the acquisition and accumulation of these minerals should contribute in improving the nutritional quality of new cultivars. Currently, the identification and subsequent location of genomic regions has been done by linkage analyses, generating maps from inbred populations. However, associative mapping is an alternative to explore a wide range of genetic variability, providing a high-resolution identification of genomic regions of interest. In this context, our goal is to detect loci involved in the control of iron and zinc amount in common bean seeds using by the associative mapping approach. (AU)

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)

DINIZ, AUGUSTO LIMA; GIORDANI, WILLIAN; COSTA, ZIRLANE PORTUGAL; MARGARIDO, GABRIEL R. A.; PERSEGUINI, JULIANA MORINI K. C.; BENCHIMOL-REIS, LUCIANA L.; CHIORATO, ALISSON F.; GARCIA, ANTONIO AUGUSTO F.; CARNEIRO VIEIRA, MARIA LUCIA. Evidence for Strong Kinship Influence on the Extent of Linkage Disequilibrium in Cultivated Common Beans. GENES, v. 10, n. 1, JAN 2019. (14/06647-9)

GIORDANI, WILLIAN; GAMA, HENRIQUE CASTRO; CHIORATO, ALISSON FERNANDO; FRANCO GARCIA, ANTONIO AUGUSTO; CARNEIRO VIEIRA, MARIA LUCIA. Genome-wide association studies dissect the genetic architecture of seed shape and size in common bean. G3-GENES, GENOMES, GENETICS, v. 12, n. 4, p. 16-pg., 2022-02-26. (18/09069-7, 20/02755-2, 14/06647-9)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

DINIZ, Augusto Lima. Genomic regions controlling agronomic traits and macro- and micronutrient contents in common bean grains, via association mapping. 2016. Doctoral Thesis - Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz (ESALA/BC) Piracicaba.