Genetic diversity and phylogeography of annatto (Bixa orellana L.) from Brazilian ...
| Grant number: | 15/26837-0 |
| Support type: | Regular Research Grants |
| Duration: | April 01, 2016 - November 30, 2018 |
| Field of knowledge: | Biological Sciences - Genetics - Plant Genetics |
| Principal Investigator: | Elizabeth Ann Veasey |
| Grantee: | Elizabeth Ann Veasey |
| Home Institution: | Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil |
| Assoc. researchers: | Alessandro Alves Pereira ; Charles Roland Clement ; Doriane Picanço Rodrigues ; Eliane Gomes Fabri ; Fabio de Olivera Freitas ; Maria Imaculada Zucchi ; Natália Carolina de Almeida Silva ; Rafael Vidal ; Roberto Fritsche Neto ; Santiago Linorio Ferreyra Ramos |
Abstract
The processes of plant domestication and dispersal occurred over the past 12,000 years, involving strong selective pressures caused both by humans and by natural selection itself, leading to genetic modifications to better adapt selected populations to the ecological and agronomic conditions, and cultural aspects of human populations that cultivated them. By using tools of molecular genetics and population genomics, as well as phenotypic characterization, this project aims to: a) determine the center of domestication and understand the process of dispersal of annatto in Brazil, and also look at the reproductive system of its wild populations; b) determine the dispersal process of maize in the lowlands of South America, and identify races of maize in Brazil, in order to update the information on maize diversity in in situ-on farm conservation. To this end, molecular markers such as microsatellites, SNPs and sequences of chloroplast DNA regions will be used. Phenotypic evaluations will also be conducted in maize for the identification of races of maize currently present in Brazil. (AU)