<i>Eriocaulon vandaanamense</i> sp. nov. (Eriocaulaceae) from Kerala, India

Sunil, C. N.; Narayanan, M. K. Ratheesh; Sivadasan, M.; Alfarhan, Ahmed; Jaleel, V. Abdul

doi:10.1111/njb.00658

Cited by 9 publications

(4 citation statements)

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“…Several systematic studies have focused on Eriocaulon in Australia [9,10] and India [12] using the molecular and morphological evidence. In the last ten years, many new Eriocaulon species have been described in India [13][14][15][16][17], Southeast Asia [18][19][20][21], and Brazil [22][23][24].…”

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confidence: 99%

Insights into the phylogeny and chloroplast genome evolution of Eriocaulon (Eriocaulaceae)

Liu

Deng

et al. 2023

BMC Plant Biol

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Background Eriocaulon is a wetland plant genus with important ecological value, and one of the famous taxonomically challenging groups among angiosperms, mainly due to the high intraspecific diversity and low interspecific variation in the morphological characters of species within this genus. In this study, 22 samples representing 15 Eriocaulon species from China, were sequenced and combined with published samples of Eriocaulon to test the phylogenetic resolution using the complete chloroplast genome. Furthermore, comparative analyses of the chloroplast genomes were performed to investigate the chloroplast genome evolution of Eriocaulon. Results The 22 Eriocaulon chloroplast genomes and the nine published samples were proved highly similar in genome size, gene content, and order. The Eriocaulon chloroplast genomes exhibited typical quadripartite structures with lengths from 150,222 bp to 151,584 bp. Comparative analyses revealed that four mutation hotspot regions (psbK-trnS, trnE-trnT, ndhF-rpl32, and ycf1) could serve as effective molecular markers for further phylogenetic analyses and species identification of Eriocaulon species. Phylogenetic results supported Eriocaulon as a monophyletic group. The identified relationships supported the taxonomic treatment of section Heterochiton and Leucantherae, and the section Heterochiton was the first divergent group. Phylogenetic tree supported Eriocaulon was divided into five clades. The divergence times indicated that all the sections diverged in the later Miocene and most of the extant Eriocaulon species diverged in the Quaternary. The phylogeny and divergence times supported rapid radiation occurred in the evolution history of Eriocaulon. Conclusion Our study mostly supported the taxonomic treatment at the section level for Eriocaulon species in China and demonstrated the power of phylogenetic resolution using whole chloroplast genome sequences. Comparative analyses of the Eriocaulon chloroplast genome developed molecular markers that can help us better identify and understand the evolutionary history of Eriocaulon species in the future.

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confidence: 99%

Insights into the phylogeny and chloroplast genome evolution of Eriocaulon (Eriocaulaceae)

Liu

Deng

et al. 2023

BMC Plant Biol

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“…In Bromeliaceae, centres of palaeoendemism occur in the Guayana Shield – the site of putative origin of the family – whereas centres of neoendemism are restricted to the Brazilian Shield, where Bromelioideae subsequently radiated (Givnish et al ., 2011). Eriocaulaceae mirror this pattern (Andrino et al ., 2023), with the added area of super-endemism in India, where nearly 20% of the family occurs in the Western Ghats region alone (Sunil et al ., 2015). In Restionaceae, Western Australia, the ancestral home of the family, hosts palaeoendemics, while neoendemics are restricted to South Africa (Linder et al ., 2003).…”

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confidence: 99%

Global analysis of Poales diversification – parallel evolution in space and time into open and closed habitats

Elliott,

Spalink,

Larridon

et al. 2023

Preprint

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● Poales are one of the most species-rich, ecologically and economically important orders of plants and often characterise open habitats, enabled by unique suites of traits. We test the hypotheses that Poales species are assembled into distinct phyloregions, with centres of high phylogenetic diversity and endemism clustered in tropical regions, and that cosmopolitan families show parallel transitions into open and closed habitats at different times. ● We sampled 42% of Poales species and obtained taxonomic and biogeographic data from the World Checklist of Vascular Plants database, which was combined with open/closed habitat data scored by taxonomic experts. A dated supertree of Poales was constructed. We integrated spatial phylogenetics with regionalization analyses, historical biogeography, ancestral state estimations, and models of contingent evolution. ● Diversification in Poales and assembly of open and closed habitats result from dynamic evolutionary processes that vary across lineages, time, space, and traits, most prominently in tropical and southern latitudes. Our results reveal parallel and recurrent patterns of habitat and trait transitions in the species-rich families Poaceae and Cyperaceae, yet other smaller families display unique evolutionary trajectories. ● The Poales have achieved global dominance via parallel evolution in open habitats, with notable, spatially and phylogenetically restricted divergences into strictly closed habitats.

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“…In Bromeliaceae, centres of palaeoendemism occur in the Guayana Shield – the site of putative origin of the family – whereas centres of neoendemism are restricted to the Brazilian Shield, where Bromelioideae subsequently radiated (Givnish et al ., 2011). Eriocaulaceae mirror this pattern (Andrino et al ., 2023), with the added area of super‐endemism in India, where nearly 20% of the family occurs in the Western Ghats region (Sunil et al ., 2015). In Restionaceae, Western Australia, the ancestral home of the family, hosts palaeoendemics, while neoendemics are restricted to South Africa (Linder et al ., 2003).…”

Section: Discussionmentioning

confidence: 99%

Global analysis of Poales diversification – parallel evolution in space and time into open and closed habitats

Elliott,

Spalink,

Larridon

et al. 2023

New Phytologist

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Summary Poales are one of the most species‐rich, ecologically and economically important orders of plants and often characterise open habitats, enabled by unique suites of traits. We test six hypotheses regarding the evolution and assembly of Poales in open and closed habitats throughout the world, and examine whether diversification patterns demonstrate parallel evolution. We sampled 42% of Poales species and obtained taxonomic and biogeographic data from the World Checklist of Vascular Plants database, which was combined with open/closed habitat data scored by taxonomic experts. A dated supertree of Poales was constructed. We integrated spatial phylogenetics with regionalisation analyses, historical biogeography and ancestral state estimations. Diversification in Poales and assembly of open and closed habitats result from dynamic evolutionary processes that vary across lineages, time and space, most prominently in tropical and southern latitudes. Our results reveal parallel and recurrent patterns of habitat and trait transitions in the species‐rich families Poaceae and Cyperaceae. Smaller families display unique and often divergent evolutionary trajectories. The Poales have achieved global dominance via parallel evolution in open habitats, with notable, spatially and phylogenetically restricted divergences into strictly closed habitats.

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Eriocaulon vandaanamense sp. nov. (Eriocaulaceae) from Kerala, India

Cited by 9 publications

References 9 publications

Insights into the phylogeny and chloroplast genome evolution of Eriocaulon (Eriocaulaceae)

Insights into the phylogeny and chloroplast genome evolution of Eriocaulon (Eriocaulaceae)

Global analysis of Poales diversification – parallel evolution in space and time into open and closed habitats

Global analysis of Poales diversification – parallel evolution in space and time into open and closed habitats

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