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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Phylogeny of the Neotropical tribe Jacarandeae (Bignoniaceae)

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Autor(es):
Ragsac, Audrey C. [1, 2] ; Farlas-Singer, Rosana [3] ; Freitas, Loreta B. [4] ; Lohmann, Lucia G. [5] ; Olmstead, Richard G. [1, 2]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Univ Washington, Dept Biol, Box 355325, Seattle, WA 98195 - USA
[2] Univ Washington, Burke Museum, Box 355325, Seattle, WA 98195 - USA
[3] Fundacao Zoobot Rio Grande do Sul, Rua Dr Salvador Franca 1427, BR-90690000 Porto Alegre, RS - Brazil
[4] Univ Fed Rio Grande do Sul, Inst Biociencias, Dept Genet, POB 15051, BR-91501970 Porto Alegre, RS - Brazil
[5] Univ Sao Paulo, Inst Biociencias, Dept Bot, Rua Matao 277, BR-05508090 Sao Paulo, SP - Brazil
Número total de Afiliações: 5
Tipo de documento: Artigo Científico
Fonte: AMERICAN JOURNAL OF BOTANY; DEC 2019.
Citações Web of Science: 0
Resumo

Premise The tribe Jacarandeae includes Jacaranda (49 species) and Digomphia (3 species), two genera of trees and woody shrubs with Neotropical distribution. Jacarandeae is sister to the rest of the Bignoniaceae, but not much is known about interspecific and intergeneric relationships within this group. Methods We reconstructed the phylogeny of Jacarandeae using chloroplast (ndhF, rpl32-trnL, trnL-F) and nuclear (ETS, PPR62) markers. Evolutionary relationships within Jacarandeae were inferred using Bayesian, Maximum Likelihood, and species tree approaches. The resulting phylogenetic framework was used as the basis to interpret the evolution of key morphological character states (i.e., stamen and calyx traits) and revise the infra-generic classification of the group. Results Jacaranda and Digomphia belong to a well-supported clade, with Digomphia nested within Jacaranda. We propose the necessary taxonomic changes to recognize monophyletic taxa, including a broadly circumscribed Jacaranda divided into four sections: (1) Jacaranda sect. Nematopogon, species previously included in Digomphia and united by divided staminode apices and spathaceous calyces; (2) Jacaranda sect. Copaia, species with monothecal anthers and cupular calyces; (3) Jacaranda sect. Jacaranda, species with monothecal anthers and campanulate calyces; and (4) Jacaranda sect. Dilobos, species with dithecal anthers and cupular calyces, and including more than half of the species of the genus, all restricted to Brazil. Conclusions As circumscribed here, Jacarandeae includes only a broadly defined Jacaranda divided into four sections. Each section is defined by a unique combination of anther and calyx morphologies. (AU)

Processo FAPESP: 12/50260-6 - Estruturação e evolução da biota amazônica e seu ambiente: uma abordagem integrativa
Beneficiário:Lúcia Garcez Lohmann
Linha de fomento: Auxílio à Pesquisa - Programa BIOTA - Temático