Autor(es)

Taylor, Nigel P. ; Zappi, Daniela C. ; Romeiro-Brito, Monique ; Telhe, Milena C. ; Franco, Fernando F. ; Moraes, Evandro M.

• Tipo de documento: Artigo Científico
• Fonte: Taxon; v. 72, n. 6, p. 13-pg., 2023-11-28.

Resumo

A new study of the phylogeny of Cereus investigates generic monophyly and previous subgeneric classification. A coalescent approach was used to assess phylogenetic relationships among Cereus species based on nuclear orthologous genes captured by the Cactaceae591 probe set. The analysis included two unusual new taxa from eastern and northern Brazil to ascertain their position within the genus. Amongst the additional taxa, one was found to be early derived to the Atlantic Forest and coastal Cereus species and is described as C. ingens. Its imposing habit, considerably broader flower, yellow fruits and large seeds differentiate it from other Cereus species, and its inland agreste forest habitat in Minas Gerais and Bahia leads it to be categorized as Endangered, as little remains of this vegetation type. A second new species, C. gerardi, is described from the state of Tocantins (northern Brazil). Vegetatively this taxon is remarkable for resembling members of Pilosocereus, but has typical Cereus flowers, matching those of the type of the genus, C. hexagonus. The definition and relationships of the genus within the tribe Cereeae were made more evident, partly recovering three of the four pre-existing subgenera. (AU)

• Processo FAPESP: 18/06937-8 - Filogenia, biogeografia e diversificação de cactos da América do Sul com enfoque na Tribo Cereeae (Cactaceae)
• Beneficiário: Monique Romeiro Brito
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 19/03211-9 - Filogenia, biogeografia e diversificação de cactos na América do Sul
• Beneficiário: Evandro Marsola de Moraes
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Regular
• Processo FAPESP: 19/11233-2 - Filogenia, biogeografia e evolução de caracteres dos gêneros Melocactus link & Otto e Discocactus Pfeiff (Cactaceae)
• Beneficiário: Milena Cardoso Telhe
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto
• Processo FAPESP: 20/15161-3 - Adaptação durante transições biogeográficas do Cerrado para a Caatinga: paralelismo evolutivo e idiossincrasias em linhagens independentes do gênero Cereus (Cactaceae)
• Beneficiário: Fernando de Faria Franco
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Regular