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Phylogeography, adaptive variation and reproductive biology of Pitcairnia lanuginosa complex (Bromeliaceae)

Grant number: 14/08087-0
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): September 01, 2016
Effective date (End): December 03, 2018
Field of knowledge:Biological Sciences - Botany
Principal Investigator:Clarisse Palma da Silva
Grantee:Bárbara Simões Santos Leal
Home Institution: Instituto de Biociências (IB). Universidade Estadual Paulista (UNESP). Campus de Rio Claro. Rio Claro , SP, Brazil
Associated scholarship(s):16/20273-0 - Population genomics and adaptive variation of the Pitcairnia lanuginosa complex (Bromeliaceae), BE.EP.DR


The understanding of the processes leading to the diversification of lineages and the appearance of new species is particularly important in the world's biodiversity hotspots. Genotyping-by-Sequencing (GBS) approaches, as restriction site associated DNA sequencing (RAD-Seq), have shown promise for studying such processes, even when it involves non-model organisms. In this work, we will use the Pitcairnia lanuginosa complex (Bromeliaceae), which is widely distributed in tropical regions of South America, as a model to study patterns and processes underlying the diversity in the Neotropics. For this, we will employ a large amount of SNPs markers isolated by RAD-Seq, as well as nuclear and plastid markers and ecological niche modeling (ENM), to determine the role of historical demographic processes on the neutral and adaptive genetic variation and to test the boundaries between species of the group, in a phylogeographic context. In an attempt to aggregate essential biological knowledge to interpret the patterns of diversification, we will also raise data about the morphological variation and the reproductive biology, still unknown for the species of the complex. Our results about the divergence between the lineages of P. lanuginosa complex occupying the Central Andean Yungas and the Brazilian Cerrado will provide insights about the patterns and processes that govern the high biodiversity of the South American continent. This study will also assist the understanding of demographic responses of herbaceous plants adapted to drought stress during the Quaternary climatic oscillations. (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)
NEVES CHAVES, CLEBER JULIANO; AOKI-GONCALVES, FELIPE; SANTOS LEAL, BARBARA SIMOES; ROSSATTO, DAVI RODRIGO; PALMA-SILVA, CLARISSE. Transferability of nuclear microsatellite markers to the atmospheric bromeliads Tillandsia recurvata and T-aeranthos (Bromeliaceae). BRAZILIAN JOURNAL OF BOTANY, v. 41, n. 4, p. 931-935, DEC 2018. Web of Science Citations: 1.
LEAL, BARBARA S. S.; MEDEIROS, LILIAN R.; PERES, ELEN A.; SOBRAL-SOUZA, THADEU; PALMA-SILVA, CLARISSE; ROMERO, GUSTAVO Q.; CARARETO, CLAUDIA M. A. Insights into the evolutionary dynamics of Neotropical biomes from the phylogeography and paleodistribution modeling of Bromelia balansae. AMERICAN JOURNAL OF BOTANY, v. 105, n. 10, p. 1725-1734, OCT 2018. Web of Science Citations: 1.
SANTOS LEAL, BARBARA SIMOES; DA SILVA, CLARISSE PALMA; PINHEIRO, FABIO. Phylogeographic Studies Depict the Role of Space and Time Scales of Plant Speciation in a Highly Diverse Neotropical Region. CRITICAL REVIEWS IN PLANT SCIENCES, v. 35, n. 4, p. 215-230, 2016. Web of Science Citations: 5.
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
LEAL, Bárbara Simões Santos. Filogeografia e genômica de populações de Pitcairnia lanuginosa (Bromeliaceae). 2018. 155 f. Doctoral Thesis - Universidade Estadual Paulista "Júlio de Mesquita Filho" Instituto de Biociências (Campus de Rio Claro)..

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