Genetic diversity, spatial genetic structure, mating system and gene flow in Genipa americana L. by SSR markers

• Grant number: 13/19444-6
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: December 01, 2013
• End date: November 30, 2016
• Field of knowledge: Agronomical Sciences - Forestry Resources and Forestry Engineering - Forestry
• Principal Investigator: Mario Luiz Teixeira de Moraes
• Grantee: Marília Freitas de Vasconcelos Melo
• Host Institution: Faculdade de Ciências Agronômicas (FCA). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil

Abstract

Studies on ecology and population genetics are fundamental to understand the effects of fragmentation on the forest species. A study based on microsatellite markers will be performed to estimate parameters of genetic diversity, spatial genetic structure, mating system and gene flow in natural populations and progeny tests of G. americana L., conservation programs aimed and genetic improvement of the species. The sampling will be carried out in two populations: the first (POP-SE) is located in the northeast of the country, in a transition area between the Atlantic Forest and Caatinga (Arauá / SE) and the second (POP - SP) in the southeast, in one Active Germplasm Bank, a transition area between the rainforest, represented by Semideciduous Forest and Cerrado (Rosana / SP ), which proves the ecological plasticity of the species under study. Young leaves, used for the analysis of microsatellite trees will be collected on 30 mothers and 20 plants / progeny in each of the populations. For this, we will use up to 8 SSR markers are being developed for the species. The analysis of the mating system will be conducted based on the mixed-mating model, correlated mating model and using paternity analysis. These results give an indication of the potential of these individuals for in situ conservation, collecting seeds for the formation of genebanks, as well as for collection of seeds from mother trees for recovery of degraded areas and future genetic improvement programs in areas of transition between different biomes. (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)

DE VASCONCELOS MELO, MARILIA FREITAS; SEBBENN, ALEXANDRE MAGNO; ROSSINI, BRUNO CESAR; CRUZ DA SILVA MUNIZ, ANA VERUSKA; RODRIGUES, CARLOS JOSE; MARINO, CELSO LUIS; TEIXEIRA DE MORAES, MARIO LUIZ. Estimating genetic diversity, mating system and pollen dispersal to inform ex situ conservation of the tree Genipa americana L.. PLANT GENETIC RESOURCES-CHARACTERIZATION AND UTILIZATION, v. 19, n. 1, p. 9-19, FEB 2021. (13/19444-6)

Academic Publications

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

MELO, Marília Freitas de Vasconcelos. Genetic diversity, spatial genetic structure, mating system and gene flow in jenipapo (Genipa americana Linnaeus) using microssatellite markers. 2016. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Ciências Agronômicas. Botucatu Botucatu.