A Phylogeny of &lt;I&gt;Rinorea&lt;/I&gt; (Violaceae) Inferred from Plastid DNA Sequences with an Emphasis on the African and Malagasy Species

Wahlert, Gregory A.; Ballard, Harvey E.

doi:10.1600/036364412x656392

Cited by 21 publications

(15 citation statements)

References 11 publications

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“…The family Violaceae comprises 23–31 genera and approximately 1050 species worldwide (Hekking, 1984 , 1988 ; Munzinger and Ballard, 2003 ; Wahlert and Ballard, 2012 ; Wahlert et al, 2014 ; Tokuoka, 2008 ). Most genera contain a small number of species or are monotypic and restricted to the New World or Old World tropics.…”

Section: Introductionmentioning

confidence: 99%

Distribution of circular proteins in plants: large-scale mapping of cyclotides in the Violaceae

et al. 2015

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During the last decade there has been increasing interest in small circular proteins found in plants of the violet family (Violaceae). These so-called cyclotides consist of a circular chain of approximately 30 amino acids, including six cysteines forming three disulfide bonds, arranged in a cyclic cystine knot (CCK) motif. In this study we map the occurrence and distribution of cyclotides throughout the Violaceae. Plant material was obtained from herbarium sheets containing samples up to 200 years of age. Even the oldest specimens contained cyclotides in the preserved leaves, with no degradation products observable, confirming their place as one of the most stable proteins in nature. Over 200 samples covering 17 of the 23–31 genera in Violaceae were analyzed, and cyclotides were positively identified in 150 species. Each species contained a unique set of between one and 25 cyclotides, with many exclusive to individual plant species. We estimate the number of different cyclotides in the Violaceae to be 5000–25,000, and propose that cyclotides are ubiquitous among all Violaceae species. Twelve new cyclotides from six phylogenetically dispersed genera were sequenced. Furthermore, the first glycosylated derivatives of cyclotides were identified and characterized, further increasing the diversity and complexity of this unique protein family.

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Section: Introductionmentioning

confidence: 99%

Distribution of circular proteins in plants: large-scale mapping of cyclotides in the Violaceae

et al. 2015

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“…Similar to R. parviflora Chipp in the fruits having a thick spongy mesocarp (in almost all other members of the genus the mesocarp is slender and hard), differing in that the abaxial surface of the leaf-blade lacks glands and that the inflorescence branches are many-flowered (vs glandular and 1 -2-flowered respectively). Wahlert & Ballard (2012).…”

Section: Results: Taxonomymentioning

confidence: 99%

Two new threatened species of Rinorea (Violaceae), forest trees from East and South Regions, Cameroon

Achoundong

Cheek

2021

Preprint

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SummaryTwo tree species are described as new to science: Rinorea spongiocarpa Achound. sp. nov (placed in Rinorea [unranked] Brachypetalae) and Rinorea dimakoensis Achound. sp. nov.( placed in Rinorea [unranked] Ilicifolieae). Both species are endemic to Cameroon, occurring south of the Sanaga river, the first from South and East Regions, occurring in evergreen forest from Ebolowa to Dja, while the second occurs in the northern part of East Region in semi-deciduous forest towards the interface with woodland habitats in the Dimako-Bertoua area. The two species are illustrated, and their affinities and conservation status according to the 2012 IUCN categories and criteria are discussed. Both species are threatened with extinction due to habitat destruction, the first is assessed as Vulnerable, the second Endangered.

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“…Two recent molecular phylogenetic studies based on analyses of nuclear and plastid DNA sequences have focused on the African and Malagasy species of Rinorea (Wahlert & Ballard, 2012 ;van Velzen et al, 2015). Both studies corroborated the monophyly of R. subsect.…”

Section: Introductionmentioning

confidence: 83%

Novelties from the Northern Mountains Complex of Madagascar IV: A new Rinorea Aubl. (Violaceae) of restricted range from the Galoko and Kalabinono massifs

Wahlert¹

2016

Candollea

Self Cite

702

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Rinorea callmanderi Wahlert (Violaceae), a new species from northwestern Madagascar, is described and illustrated. This new species was discovered during an intensive floristic inventory in the botanically unexplored Kalabinono and Galoko massifs. Based on morphological and molecular evidence, the new species is placed in Rinorea subsect. Verticillatae Engl., the most species-rich group of Rinorea Aubl. in Madagascar. Rinorea callmanderi is morphologically most similar to Rinorea mutica (Tul.) Baill. by its opposite-leaved phyllotaxy and condensed, subsessile cymose inflorescence, but differs by the shape and size of the leaf, the pattern of pubescence on the inner surface of the petal, and the presence of dorsal and ventral anther connective scales. The new species is described and provided with line drawings, a distribution map, a discussion on its morphology, and a preliminary conservation assessment using the IUCN Red List Categories and Criteria.Résumé WAHLERT, G.A. (2016). Nouveautés du Complexe des Montagnes du Nord de Madagascar IV: Une nouvelle espèce à distribution restreinte dans le genre Rinorea Aubl. (Violaceae) des massifs montagneux du Galoko et du Kalabinono. Candollea 71 : 205-210. En anglais, résumés anglais et français.

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A Phylogeny of <I>Rinorea</I> (Violaceae) Inferred from Plastid DNA Sequences with an Emphasis on the African and Malagasy Species

Cited by 21 publications

References 11 publications

Distribution of circular proteins in plants: large-scale mapping of cyclotides in the Violaceae

Distribution of circular proteins in plants: large-scale mapping of cyclotides in the Violaceae

Two new threatened species of Rinorea (Violaceae), forest trees from East and South Regions, Cameroon

Novelties from the Northern Mountains Complex of Madagascar IV: A new Rinorea Aubl. (Violaceae) of restricted range from the Galoko and Kalabinono massifs

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