The comparative study of Alkanna and Huynhia (Boraginaceae, Lithospermeae), with description of a new species in Iran

Phytotaxa, Journal Year: 2021, Volume and Issue: 524(4), P. 216 - 234

Published: Nov. 9, 2021

A new blue to light violet-flowered species from SW Iran is described as Alkanna semiromica. The morphologically close A. frigida and Huynhia pulchra. Floral characters suggested the affinity of Huynhia, especially stamens inserted at different heights in corolla tube also plant trichomes while pollen supported its place within genus Alkanna. comparison with most similar genera presented here based on old morphological data, understand differences among species. In addition, diagnostic characters, description, detailed illustrations, taxonomic comments are presented.

Language: Английский

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Phylogenomics Of Boraginaceae and Boraginales Using Lineage-Specific and Angiosperms353 Loci

Systematic Botany, Journal Year: 2025, Volume and Issue: 49(4), P. 749 - 767

Published: Jan. 6, 2025

Abstract— During the past 20 yr, phylogenetics of Boraginaceae has taken shape using plastid DNA regions and nuclear ribosomal internal transcribed spacer (ITS), but these only reflect a limited understanding evolutionary history family. Using hybridization-enrichment sequencing, 531 from lineage-specific Angiosperms353 loci were sequenced aligned for 49 species across Boraginaceae. Additionally, incorporated with broader dataset same 115 accessions Boraginales relatives. Based on multiple phylogenetic approaches datasets, resolved phylogenies quite similar to our current understanding, yet taxa recognized in different positions. These included: 1) Echiochiloideae as sister Cynoglossoideae instead rest entire family, 2) Moritzinae nested within Boragininae, 3) Lasiocaryeae Trichodesmeae not sisters. positions recovered, via methods, hundreds suggest that incomplete lineage sorting, hybridization, shifts substitution rates may have occurred during early origin In analyses Boraginales, Namaceae was non-monophyletic, providing evidence Hydrophyllaceae again be appropriate, Lennoaceae Ehretiaceae. While both sets allowed well-resolved well-supported phylogeny reconstructed, recovered some more intriguing relationships part because appear less conserved than those Angiosperms353. The two provide an interesting complement patterns evolution family order.

Language: Английский

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Origins of the Hawaiian flora: Phylogenies and biogeography reveal patterns of long‐distance dispersal

Journal of Systematics and Evolution, Journal Year: 2018, Volume and Issue: 56(6), P. 600 - 620

Published: Nov. 1, 2018

Abstract Botanists have long considered the origins of Hawaiian flora in terms long‐distance dispersal from particular source areas. We extensively reviewed phylogenetic studies angiosperm to determine most likely region origin for each lineage a defined set also evaluated modes assess whether certain are associated with given area. The largest category was Widespread (involving related taxa that extend across more than one region), although many these comprised native non‐endemic species, and accounted little total species diversity (after accounting situ speciation). next regions were Indo‐Malayan Neotropical. Comparatively few lineages originated East Asian region, include single lineage. Lineages originating predominantly arrived via Pacific Islands, whereas all other appears been mostly direct. Compared previous analyses, we found higher proportion Neotropics temperate North America. positively flotation on water, by birds, either through internal transport or external adhesion. identified thirty‐one potential cases out Hawaii islands. Our assessment is complicated ancient origins, further complications stemming hybridization events. Overall, numerous including some distinctive endemic genera not had sufficient study an origin.

Language: Английский

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Onosma satensis sp. nov. (Boraginaceae: Lithospermeae), a new species from Hakkari (eastern Anatolia, Turkey)

Adansonia, Journal Year: 2021, Volume and Issue: 43(16)

Published: Sept. 13, 2021

A new species of Onosma L. (Boraginaceae: Lithospermeae), from the Hakkari province eastern Turkey, is described and illustrated. The endemic distributed in a narrow area Sat Mountains. Taxonomically closest relative satensis sp. nov. O. polioxantha Rech. f. which also occurs Turkey. In addition, it primarily distinguished by its navicular leaves, longer reticulate cauline pedicels calyx, densely patent short setulose outside, corolla bigger nutlets. geographical distributions map, detailed photographs, habitat description, vernacular name, an IUCN conservation status identification key for were provided. Nutlets pollen micrographs are presented using scanning electron microscopy.

Language: Английский

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American amphitropical disjuncts: Perspectives from vascular plant analyses and prospects for future research

American Journal of Botany, Journal Year: 2017, Volume and Issue: 104(11), P. 1600 - 1650

Published: Nov. 1, 2017

PREMISE OF THE STUDY: Historical patterns and processes of plants with an American amphitropical disjunct (AAD) distribution have long interested botanists biogeographers. Here we update examples AAD vascular plants, their biogeographic history, aspects biology elucidated by recent studies to make inferences about common formulate future research questions. METHODS: All known were tabulated, along data on plant duration habit, chromosome number, dispersal direction, divergence time. The then compared regard taxonomic categories, bioregions, character evolution. KEY RESULTS: We clarify the definition summarize features plants. identify 237 events. Timing these events generally corresponds category. Plant habit are associated bioregions. Increases in number mostly occurred members recipient area. bipolar or temperate bioregions entirely largely dispersed from North South America, whereas almost half desert America. CONCLUSIONS: Tabulating group bioregion yields insight into evolution divergence. Phylogenetic provide information timing direction dispersal. However, more is needed draw regarding general processes, especially those at clade level. Our Working Group website provides current aid workers doing this field.

Language: Английский

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Foliar and stem epidermal anatomy of the tribe Cynoglosseae (Boraginaceae) and their taxonomic significance

Microscopy Research and Technique, Journal Year: 2019, Volume and Issue: 82(6), P. 786 - 802

Published: Feb. 25, 2019

Foliar and stem epidermal anatomical features of the tribe Cynoglosseae have been studied in detail for taxonomic identification using light microscopy (LM) scanning electron microscopic (SEM) techniques. A comparative study was conducted on different plant parts (leaf anatomy) 25 species belonging to eight genera (Boraginaceae) collected from phytogeographical regions Iran first time. Different qualitative quantitative characteristics were observed LM SEM. Results showed that although generally leaf traits similar, but some diagnostic examined distinguishing closely related tribe. The ratio cortex/diameter phloem/xylem, average row number collenchyma, palisade spongy cells, structure trichomes, type indumentum arrangement found taxonomically important. characters statistically analyzed cluster analysis principal component analysis. eccentrics are variable genus constant within same genus. Most had typical isobilateral leaves, an incipient dorsoventrally symmetry with a layer abaxial tissue. Eglandular trichomes all species, which recognized based function. In present novel great interest taxonomist correct delimitations. here less value delimitating at level.

Language: Английский

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Mineralized trichomes in Boraginales: complex microscale heterogeneity and simple phylogenetic patterns

Annals of Botany, Journal Year: 2017, Volume and Issue: 121(4), P. 741 - 751

Published: Nov. 22, 2017

Boraginales are often characterized by a dense cover of stiff, mineralized trichomes, which may act as first line defence against herbivores. Recent studies have demonstrated that the widely reported silica and calcium carbonate in plant trichomes be replaced phosphate. The present study investigates mineralization patterns 42 species from nine families order to investigate detailed possible presence phylogenetic signal different patterns.

Language: Английский

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Phylogeny of the popcorn flowers: Use of genome skimming to evaluate monophyly and interrelationships in subtribe Amsinckiinae (Boraginaceae)

Taxon, Journal Year: 2017, Volume and Issue: 66(6), P. 1406 - 1420

Published: Dec. 1, 2017

Abstract Subtribe Amsinckiinae, currently containing 13 genera and approximately 287 species, is a species‐rich group of the family Boraginaceae. Past studies assessing relationships had limited sample size generally weak support. Here we study phylogenetic Amsinckiinae using large considerably more sequence data in order to evaluate interrelationships clades within this group. Using high‐throughput, genome skimming sequencing 139 samples four outgroup taxa, maximum likelihood Bayesian analyses separate plastome, cistron, mitochondrial datasets are presented. In almost all common ancestor gives rise an Andersonglossum or + Adelinia clade . Most genera, including Amsinckia, Eremocarya, Greeneocharis, Harpagonella, Oreocarya , Pectocarya consistently monophyletic with strong Plagiobothrys confirmed be non‐monophyletic, composed three conforming generic sections. Cryptantha also most species strongly supported s.str. clade, but some nesting Johnstonella our Maritimae Although verifies monophyly many among those along backbone trees remain uncertain, their elucidation possibly factor short branch lengths likely requiring different types molecular data. Our may serve as baseline for future work on morphology, reproductive biology, biogeography Amsinckiinae.

Language: Английский

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A molecular-dated phylogeny and biogeography of the monotypic legume genus Haplormosia, a missing African branch of the otherwise American-Australian Brongniartieae clade

Molecular Phylogenetics and Evolution, Journal Year: 2016, Volume and Issue: 107, P. 431 - 442

Published: Dec. 10, 2016

A comprehensively sampled reassessment of the molecular phylogeny genistoid legumes questions traditional placement Haplormosia, an African monotypic genus traditionally classified within tribe Sophoreae close to Asian-American geographically disjunct Ormosia. Plastid matK sequences placed Haplormosia as sister American-Australian Brongniartieae. Despite a superficial resemblance between and Ormosia, re-examination morphology corroborates new phylogenetic result. The reciprocally monophyletic deep divergence stem lineage from remaining Brongniartieae is dated ca. 52Mya, thus supporting signature old single long-distance dispersal during early Eocene. Conversely, we estimated relatively recent rooted in Early Miocene for Australian clade emerging grade American Bayesian ancestral area reconstruction revealed coming going neotropical ancestors diversification history Africa all over Americas Australia.

Language: Английский

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Phylogenomics provides new Insight into the phylogeny and diversification of Asian Lappula (Boraginaceae)

Molecular Phylogenetics and Evolution, Journal Year: 2025, Volume and Issue: 208, P. 108361 - 108361

Published: April 25, 2025

The application of omics data serves as a powerful tool for investigating the roles incomplete lineage sorting (ILS) and hybridization in shaping genomic diversity, offering deeper insights into complex evolutionary processes. In this study, we utilized deep genome sequencing from 76 individuals Lappula its closely allied genera, collected China Central Asia. By employing HybPiper Easy353 pipelines, recovered 262-279 single-copy nuclear genes (SCNs) 352-353 Angiosperms353 genes, respectively. We analyzed multiple datasets, including complete chloroplast genomes filtered set 475 SCNs, to conduct phylogenetic analyses using both concatenated coalescent-based methods. Furthermore, employed Quartet Sampling (QS), coalescent simulations, MSCquartets, HyDe, reticulate network investigate sources discordance. Our results confirm that is polyphyletic, with L. mogoltavica clustering Pseudolappula sinaica forming sister relationship other taxa included study. Additionally, three Lepechiniella nested within distinct clades Lappula. Significant gene tree discordance was observed at several nodes Coalescent simulations hybrid detection suggest ILS contribute these discrepancies. Flow cytometry (FCM) confirmed presence diploid tetraploid Phylogenetic further revealed Clades IV VII likely originated through hybridization, tetraploids Clade arising two independent events. "ghost lineage" identified redowskii one donors allopolyploidization. conclusion, our study provides new relationships Asian contributing more comprehensive understanding evolution diversification

Language: Английский

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