Autor(es):
Aguiar, Bruna Ibanes ; Sebbenn, Alexandre Magno ; Tarazi, Roberto ; Vogado, Nara Oliveira [UNESP] ; Morellato, Leonor Patricia C. [UNESP] ; Tambarussi, Evandro Vagner ; Moreno, Maria Andréia ; Pereira, Lya C. S. M. ; Montibeller, Cinthia ; Ferraz, Elza Martins ; Gandara, Flávio Bertin ; Kageyama, Paulo Yoshio
Data: 2020
Identificador Persistente: http://hdl.handle.net/11449/201403
Origem: Oasisbr
Assunto(s): Genotypic diversity; Microsatellite markers; Population genetics; Tropical tree species; Vegetative and reproductive phenology; Genotypic diversity; Genotypic diversity; Microsatellite markers; Microsatellite markers; Population genetics; Population genetics; Tropical tree species; Tropical tree species; Vegetative and reproductive phenology; Vegetative and reproductive phenology
Descrição
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Diospyros lasiocalyx (Mart.) B. Wall. is a dioecious tree species found in the threatened and fragmented Brazilian Cerrado. Its fleshy fruits, which are consumed extensively by wildlife, make the species ideal for use in restoration. This study includes a ten-year phenological observation, germination tests, and analysis of molecular markers to understand the reproductive strategy of D. lasiocalyx based on samples from three populations in two Cerrado ecosystems in São Paulo State, Brazil. The within population reproductive phenological pattern presented low synchrony, indicating a lack of sexual reproduction. The vegetative phenological pattern was well pronounced, with the peak of senescence occurring at the end of the dry season, just before leaf flushing. A small number of unique genets were found, indicating asexual reproduction and low genotypic diversity in the studied populations. The absence of inbreeding and the presence of ramets (stems) suggest that reproduction mainly occurs by apomixis and vegetative propagation, with some mating among unrelated stems and a low germination rate. Our study indicates that D. lasiocalyx can colonize harsh environments such as the Cerrado using alternative asexual reproductive strategies, while simultaneously attracting many seed dispersers.
Escola Superior de Agricultura “Luiz de Queiroz” University of São Paulo, Av. Pádua Dias, 11, PO Box 9
Instituto Florestal de São Paulo, PO Box 1322
Discovery Breeder of BASF SA – Rod, GO 060, Km 25, S/N, Zona Rural
Centre for Tropical Environmental and Sustainability Sciences College of Science and Engineering James Cook University
Universidade Estadual Paulista UNESP Instituto de Biociências Departamento de Botânica Laboratório de Fenologia, A. 24A, 1515, C.P.199
Departamento de Engenharia Florestal Universidade Estadual do Centro-Oeste, PR 153 Km 7 – Riozinho
Universidade Estadual Paulista UNESP Instituto de Biociências Departamento de Botânica Laboratório de Fenologia, A. 24A, 1515, C.P.199
