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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

High gene flow maintains wide-range species cohesion in a Neotropical epiphyte (Tillandsia aeranthos, Bromeliaceae)

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Author(s):
Aoki-Goncalves, Felipe [1] ; Dantas De Queiroz, Marcos Vinicius [2] ; Guimaraes, Thais De Beauclair [3] ; Neffa, Viviana Solis [4] ; Palma-Silva, Clarisse [5]
Total Authors: 5
Affiliation:
[1] Univ Estadual Paulista, UNESP, Programa Posgrad Ecol & Biodiversidade, Inst Biociencias, Rio Claro - Brazil
[2] Univ Estadual Paulista, UNESP, Programa Posgrad Biol Vegetal, Inst Biociencias, Rio Claro - Brazil
[3] Herbario Dept Diagnost & Pesquisa Agr Rio Grande, Porto Alegre, RS - Brazil
[4] Inst Bot Nordeste UNNE CONICET, Fac Ciencias Exactas & Nat & Agrimensura UNNE, Corrientes - Argentina
[5] Univ Estadual Campinas, UNICAMP, Dept Biol Vegetal, Inst Biol, Campinas - Brazil
Total Affiliations: 5
Document type: Journal article
Source: Botanical Journal of the Linnean Society; v. 194, n. 2, p. 239-252, OCT 2020.
Web of Science Citations: 1
Abstract

Studies of patterns of genetic diversity, genetic structure and ecological data across geographical ranges of species allow us to test hypotheses about the evolutionary responses of organisms to fluctuations in habitat connectivity and availability. Here we present a study aiming to assess genetic diversity, population structure and breeding system across the geographical distribution of a subtropical epiphyte, Tillandsia aeranthos (Bromeliaceae), endemic to the Plata River basin (Pampa biome). Seven nuclear microsatellite markers were genotyped in 203 individuals from 13 localities across Brazil and Argentina and 14 plastid regions were sequenced for a subset of the individuals. Additionally, we performed controlled pollination experiments to discuss correlations between breeding system, genetic diversity and structure in the species. Nuclear diversity levels were high (H-E = 0.806, H-o = 0.745, allelic richness = 5.860) with no haplotype differentiation detected (c. 9 kpb sequenced). Bayesian assignment analysis, supported by principal coordinate analysis and analysis of molecular variance, show low genetic structure across the studied area (F-ST = 0.031, P < 0.001). Controlled pollination experiments indicated complete self-incompatibility in all localities analysed. Our results show effective gene flow maintaining low genetic structure between localities for T. aeranthos across an extensive area in the Pampa. (AU)

FAPESP's process: 14/15588-6 - Phylogeography, population genomics and adaptive variation in Pitcairnia lanuginosa (Bromeliaceae) species complex
Grantee:Clarisse Palma da Silva
Support Opportunities: Regular Research Grants
FAPESP's process: 16/03777-4 - Patterns of genetic diversity and phylogeography of Tillandsia aeranthos (Lois) L. B. Smith (Bromeliaceae)
Grantee:Felipe Aoki Gonçalves
Support Opportunities: Scholarships in Brazil - Master