Vanilla yanesha (Orchidaceae), a new species of the membranaceous-leaved group from the central rainforest of Peru

Parizaca, Alexander Damián

doi:10.3372/wi.49.49101

Cited by 2 publications

(2 citation statements)

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“…Morphological taxonomy was the first method used in plant classification (Mallet, 1995; de Queiroz, 2005, 2007; Householder et al, 2010; Aldhebiani, 2018; Rouhan & Gaudeul, 2021). From the description of the first species in the Vanilla genus (Rolfe, 1896) to the recent new discoveries (Pansarin, 2010; Flanagan & Mosquera‐Espinosa, 2016; Pansarin & Miranda, 2016; Fraga et al, 2017; Parizaca, 2019), floral traits have been the basis of Vanilla taxonomy. Vanilla is one taxonomically complex plant group (Gigant et al, 2011b; Andriamihaja et al, 2020), with the number of species increasing at a significant rate, which has led to frequent taxonomic revisions (Rolfe, 1896; Portères, 1954; Arenas & Dressler, 2010; Soto Arenas & Cribb, 2010; Karremans et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

Integrative taxonomy and phylogeny of leafless Vanilla orchids from the South‐West Indian Ocean region reveal two new Malagasy species

Andriamihaja

Botomanga

Misandeau³

et al. 2022

J of Sytematics Evolution

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The leafless Vanilla species complex from the South‐West Indian Ocean (SWIO) region has long been a taxonomic challenge, due to limited patterns of morphological differentiation and an absence of variation within chloroplast sequences. This complex includes seven known morphospecies: V. madagascariensis, V. bosseri, V. decaryana, and V. perrieri endemic to Madagascar, V. humblotii presumed as endemic to the Comoros Archipelago, but also present in Madagascar, V. roscheri from the East African coast, and V. phalaenopsis endemic to Seychelles. A previous population genetic study using microsatellite markers allowed us to distinguish, in addition to the five recognized Malagasy taxa, two other genetic clusters present in the East of the island. An integrative taxonomy approach was therefore conducted by combining microsatellite and morphological data used in the previous study with new data sets, and by adding ITS sequencing data, to validate the taxonomic level of these Malagasy genetic clusters and unravel phylogenetic relationships between SWIO species. As a result, based on phylogenetic, genotypic and morphological evidence, nine species were discriminated in the SWIO region, including seven in Madagascar, with two new eastern species. The leafless Vanilla group originated and diversified in Madagascar, from an ancestor of African descent, with three subsequent independent colonization events from Madagascar to the other territories of SWIO within the two main lineages (white versus yellow flower species). The new Malagasy species, V. allorgeae Andriamihaja & Pailler sp. nov., and V. atsinananensis Andriamihaja & Pailler sp. nov., are described and a new identification key is proposed.

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Section: Discussionmentioning

confidence: 99%

Integrative taxonomy and phylogeny of leafless Vanilla orchids from the South‐West Indian Ocean region reveal two new Malagasy species

Andriamihaja

Botomanga

Misandeau³

et al. 2022

J of Sytematics Evolution

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“…This diversity is constantly in revision thanks to new discoveries. In the last decade, for example, 28 novel species have been described [25,27,32,35,36,[38][39][40]. The first extensive classification of the genus carried out by Rolfe in 1896, listed 50 species with six aromatic species [23].…”

Section: Species Diversity and Distributionmentioning

confidence: 99%

The Leafless Vanilla Species-Complex from the South-West Indian Ocean Region: A Taxonomic Puzzle and a Model for Orchid Evolution and Conservation Research

et al. 2020

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The pantropical genus Vanilla is a member of the Orchidaceae family, one of the largest and most diverse families of angiosperms in the world. It originated in America and differentiated in America, Africa, and Asia. About 132 species of Vanilla have now been accepted since the discovery of the genus. Within the Vanilla genus, leaflessness has appeared at least three independent times, in Africa, Asia, and America as an adaptation to drought conditions. The South-West Indian Ocean (SWIO) region, a biodiversity hotspot for orchids, is home to seven leafless species. Chloroplast markers failed to differentiate species within this recent SWIO clade. Morphological traits used for description are very similar between species and do not provide reliable identification. Moreover, some of the species have overlapping flowering periods and geographic distribution in Madagascar, increasing the probability of finding some sympatric species and, therefore, hybrids. Leafless Vanilla species from the SWIO islands are thus an excellent model for understanding the evolution of orchids. For their conservation, and to confirm the identity of these leafless species, an integrated approach with classical taxonomy using a large number of samples, intense fieldwork on biology and ecology, and molecular studies using variable markers is necessary.

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Vanilla yanesha (Orchidaceae), a new species of the membranaceous-leaved group from the central rainforest of Peru

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 2 publications

References 4 publications

Integrative taxonomy and phylogeny of leafless Vanilla orchids from the South‐West Indian Ocean region reveal two new Malagasy species

Integrative taxonomy and phylogeny of leafless Vanilla orchids from the South‐West Indian Ocean region reveal two new Malagasy species

The Leafless Vanilla Species-Complex from the South-West Indian Ocean Region: A Taxonomic Puzzle and a Model for Orchid Evolution and Conservation Research

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