Reappraisal of Tashiroea as a genus independent of Bredia (Melastomataceae) based on molecular data

Kokubugata, Goro; Nakamura, Kaoru; Kuo, Wen-Hsi; Qi, Zhe-Chen; Chung, Kuo‐Fang; Fu, Chengxin; Suzuki, Yumiko; Yokota, Masatsugu

doi:10.11646/phytotaxa.392.1.8

Cited by 6 publications

(4 citation statements)

References 12 publications

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“…These findings are strongly corroborated by our chloroplast phylogenomic analyses (unpublished), indicating that the Tashiroea clade is an independent lineage distantly related to the Bredia clade. The same conclusion is also reached in a recently published study, although based on limited sampling of species (Kokubugata et al 2019). Continued use of the non-monophyletic Bredia may hinder further study of this group and cause problems in describing new species, which has led us to update its circumscription.…”

Section: Introductionsupporting

confidence: 83%

Recircumscription of Bredia and resurrection of Tashiroea (Sonerileae, Melastomataceae) with description of a new species T. villosa

Zhou

Dai

Lin

et al. 2019

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Bredia (Melastomataceae) is an Asian genus that extends from central and southern mainland China to Taiwan and the Ryukyu islands. Molecular phylogenetic analyses reveal that the type of Bredia is nested in a clade of 20 species, while Tashiroea, a genus previously synonymized in Bredia, falls in another distantly related clade of 10 species. Our morphological survey shows that the two clades can be distinguished by several diagnostic features including leaf indumentum, texture, leaf surface sculpture under SEM, presence/absence of yellowish uniseriate trichomes, and capsule morphology. Based on molecular and morphological evidence, Bredia is recircumscribed and Tashiroea is resurrected. Description and a list of species are provided for the two genera with the description of a new species, T.villosa.

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Section: Introductionsupporting

confidence: 83%

Recircumscription of Bredia and resurrection of Tashiroea (Sonerileae, Melastomataceae) with description of a new species T. villosa

Zhou

Dai

Lin

et al. 2019

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“…Several instances are recognized where different closely related taxa are distributed and have undergone differentiation across various regions of the Ryukyu Islands. Tashiroea okinawensis / T. yaeyamensis (Melastomataceae) exhibits shallow differentiation in the Ryukyu region, with closely related species found on the Chinese mainland 25 . Viola iwagawae / V. tashiroi (Violaceae) show minor differentiation in this area 26 .…”

Section: Discussionmentioning

confidence: 99%

Double migration of the endangered Tricyrtis formosana (Liliaceae) in Japan

Tsunenari,

Ito,

Yokota

et al. 2024

Sci Rep

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The Ryukyu Islands of Japan are a biodiversity hotspot due to geographical and historical factors. Tricyrtis formosana is a perennial herbaceous plant that commonly found in Taiwan. But only a few populations have been identified in a limited habitat on Iriomote Island, while populations of unknown origin occur near human settlements in an area on the main island of Okinawa. To better understand these populations of the phylogenetic uniqueness and intrinsic vulnerability, we conducted comparative analyses including (1) phylogeny and population structure with MIG-seq data, (2) photosynthesis-related traits of plants grown under common conditions and (3) transcriptome analysis to detect deleterious variations. Results revealed that T. formosana was split into two clades by the congeners and that Iriomote and Okinawa populations independently derived from ancestral Taiwanese populations in each clade. Photosynthetic efficiency was lowest in the Iriomote population, followed by Okinawa and Taiwan. Transcriptome analysis showed that the Iriomote population accumulated more deleterious variations, suggesting intrinsic vulnerability. These results indicate that each T. formosana population in Japan is phylogenetically unique and has been independently dispersed from Taiwan, and that the Iriomote population presents a high conservation difficulty with a unique photosynthesis-related characteristic and a larger amount of deleterious variations.

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“…The group has a complicated taxonomic history with several small genera segregated and combined through the years (Cellinese 1997, Cellinese 1998. Recent phylogenetic analyses have shown that most of the currently recognized Old World genera are not monophyletic and the tribe is in dire need of a new taxonomic arrangement (Cellinese 1998, Kokubugata et al 2019, Zhou et al 2019a, Zhou et al 2019b. In light of these issues we have opted for separating the genera geographically and then order them alphabetically until the taxonomy is updated.…”

Section: Sonerileaementioning

confidence: 99%

A Guide to Curating New World Melastomataceae Collections with a Linear Generic Sequence to World-Wide Melastomataceae

Michelangeli¹,

Almeda²,

Goldenberg³

et al. 2020

Preprint

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The following guide is aimed at aiding in the curation of herbarium collections in Melastomataceae, with an emphasis on the New World species. It contains a summary of the taxonomic realignments at the tribal and generic level within Neotropical taxa of Melastomataceae, as well as some general comments for other groups. A table with a generic linear sequence is also provided, as well as tables with new and synonymized New World genera since 2005 and all currently accepted species. Lastly, a table with the synonyms of over 1000 accepted Neotropical species that have been impacted by these generic realignments is also provided.

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Reappraisal of Tashiroea as a genus independent of Bredia (Melastomataceae) based on molecular data

Cited by 6 publications

References 12 publications

Recircumscription of Bredia and resurrection of Tashiroea (Sonerileae, Melastomataceae) with description of a new species T. villosa

Recircumscription of Bredia and resurrection of Tashiroea (Sonerileae, Melastomataceae) with description of a new species T. villosa

Double migration of the endangered Tricyrtis formosana (Liliaceae) in Japan

A Guide to Curating New World Melastomataceae Collections with a Linear Generic Sequence to World-Wide Melastomataceae

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