First occurrence of Dioclea ruddiae Maxwell (Leguminosae) in Brazil

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Abstract

ABSTRACT (First occurrence of Dioclea ruddiae Maxwell (Leguminosae) in Brazil). Dioclea ruddiae (Leguminosae, Papilionoideae) is recorded for the first time in Brazil. Specimens were collected in the Serra do Tepequém, a tepui in the State of Roraima near the border with Venezuela. This study expands the distribution range of Dioclea ruddiae in the region of the Guiana Shield, where this species is probably endemic.

Translated abstract

RESUMO (Primeira ocorrência de Dioclea ruddiae Maxwell (Leguminosae) no Brasil). Dioclea ruddiae (Leguminosae, Papilionoideae) é registrada pela primeira vez no Brasil. Espécimes foram coletados na Serra do Tepequém, um tepui no Estado de Roraima, próximo à fronteira com a Venezuela. Deste modo, este estudo amplia a distribuição de Dioclea ruddiae na região do Escudo das Guianas, na qual é provavelmente endêmica.

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Most cited references 18

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A multilocus phylogenetic analysis reveals the monophyly of a recircumscribed papilionoid legume tribe Diocleae with well-supported generic relationships.

Luciano Paganucci de Queiroz, José Pastore, Domingos Cardoso … (2015)

Deciphering the phylogenetic relationships within the species-rich Millettioid clade has persisted as one of the major challenges in the systematics and evolutionary history of papilionoid legumes (Leguminosae, Papilionoideae). Historically, the predominantly neotropical lianas of subtribe Diocleinae in the Millettioid legumes have been taxonomically tangled together with the largely heterogeneous tribe Phaseoleae. This work presents a comprehensive molecular phylogenetic analysis based on nuclear and chloroplast markers and includes all genera ever referred to Diocleae except for the monospecific Philippine Luzonia, resolving several key generic relationships within the Millettioid legumes. The first of two separate analyses includes 310 matK accessions and strongly supports the reestablishment of tribe Diocleae as a branch of the Millettioid clade. This work sheds greater light on the higher-level phylogeny of Diocleae and allows the recognition of three major lineages: the Canavalia, Dioclea, and Galactia clades. The second set of phylogenetic analyses utilized nuclear (ITS/5.8S and ETS) and plastid (matK and trnT-Y) DNA sequences to reveal (i) the monophyly of Canavalia and Cleobulia; (ii) the monophyly of Bionia with the exclusion of Bionia bella; (iii) the paraphyly of Dioclea with respect to Cleobulia, Cymbosema, and Macropsychanthus; (iv) the paraphyly of Cratylia with respect to the broadly polyphyletic Camptosema; and (v) the polyphyly of Galactia with species scattered widely across the tree.

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Over the hills and far away: New plant records for the Guayana Shield in Brazil

Rafael Gomes Barbosa-Silva, Paulo Henrique Labiak, André Dos Santos Bragança Gil … (2016)

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Checklist of the plants of the Guiana Shield (Venezuela: Amazonas, Bolívar, Delta Amacuro; Guyana, Surinam, French Guiana)

VA Funk, TH Hollowell, PE BERRY … (2007)

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Author and article information

Contributors

Andréia Silva Flores: Role: ND

Rodrigo Schütz Rodrigues: Role: ND

Journal

Journal ID (publisher-id): hoehnea

Title: Hoehnea

Abbreviated Title: Hoehnea

Publisher: Instituto de Botânica (São Paulo, SP, Brazil )

ISSN (Print): 0073-2877

ISSN (Electronic): 2236-8906

Publication date (Print and electronic): December 2017

Volume: 44

Issue: 4

Pages: 607-610

Affiliations

[1] Boa Vista Roraima orgnameInstituto Federal de Educação, Ciência e Tecnologia de Roraima orgdiv1Museu Integrado de Roraima orgdiv2Herbário MIRR Brazil

[2] Boa Vista Roraima orgnameUniversidade Federal de Roraima orgdiv1Centro de Estudos da Biodiversidade Brazil