Ecological niche modeling and a lack of phylogeographic structure in Vriesea incurvata suggest historically stable areas in the southern Atlantic Forest

Autor(es)

Aguiar-Melo, Camila ^[1] ; Zanella, Camila M. ^{[2, 1]} ; Goetze, Marcia ^[1] ; Palma-Silva, Clarisse ^[3] ; Hirsch, Luiza D. ^[1] ; Neves, Beatriz ^[4] ; da Costa, Andrea F. ^[4] ; Bered, Fernanda ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Rio Grande do Sul, Inst Biociencias, Programa Posgrad Genet & Biol Mol, Ave Bento Goncalves 9500, POB 15053, BR-91501970 Porto Alegre, RS - Brazil

^[2] NIAB, Huntingdon Rd, Cambridge CB3 0LE - England

^[3] Univ Estadual Campinas, Dept Biol Vegetal, Inst Biol, BR-13083862 Campinas, SP - Brazil

^[4] Univ Fed Rio de Janeiro, Museu Nacl, Dept Bot, BR-20940040 Rio de Janeiro, RJ - Brazil

• Tipo de documento: Artigo Científico
• Fonte: AMERICAN JOURNAL OF BOTANY; v. 106, n. 7, p. 971-983, JUL 2019.
• Citações Web of Science: 1

Resumo

Premise Despite the efforts to understand the processes that shape neotropical biodiversity, the complexity of certain biomes, such as the Atlantic Forest (AF), prevents the generalization of patterns. Initially, ecological niche modeling (ENM), with phylogeographic studies, identified past stable areas in the central and northern portions of the AF, while the southern portion was thought to be highly fragmented. Here, we examined the phylogeography, historical patterns, genetic diversity, and population structure of Vriesea incurvata, an endemic species of the southern portion of the AF. Methods We evaluated 149 individuals using two plastid DNA regions (cpDNA) and 13 nuclear microsatellite markers (nuSSRs) to access the historical patterns, genetic diversity, and structure of V. incurvata populations. We also conducted historical demography and ENM analyses. Results We found moderate to high genetic diversity and low population structure for both genomes. The cpDNA network revealed high haplotype sharing. The ENM suggested no drastic changes in suitable areas for V. incurvata occurrence, corroborating the finding of no phylogeographic structure. Conclusions Contrary to some studies, our results indicate that the southern AF was a historically stable climate region for V. incurvata occupation after southward colonization by the species. Past climatic changes probably did not cause structuring among its populations. (AU)

• Processo FAPESP: 09/52725-3 - Especiação, isolamento reprodutivo e genética de populações na família Bromeliaceae: implicações taxonômicas, evolutivas e conservacionistas
• Beneficiário: Clarisse Palma da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Jovens Pesquisadores