Comprehensive phylogenomic time tree of bryophytes reveals deep relationships and uncovers gene incongruences in the last 500 million years of diversification

American Journal of Botany, Journal Year: 2023, Volume and Issue: 110(11)

Published: Oct. 4, 2023

Abstract Premise Bryophytes form a major component of terrestrial plant biomass, structuring ecological communities in all biomes. Our understanding the evolutionary history hornworts, liverworts, and mosses has been significantly reshaped by inferences from molecular data, which have highlighted extensive homoplasy various traits repeated bursts diversification. However, timing key events phylogeny, patterns, processes diversification across bryophytes remain unclear. Methods Using GoFlag probe set, we sequenced 405 exons representing 228 nuclear genes for 531 species 52 54 orders bryophytes. We inferred phylogeny gene tree analyses using concatenated coalescence approaches, assessed conflict, estimated divergences based on 29 fossil calibrations. Results The resolves many relationships bryophytes, enabling us to resurrect five liverwort recognize three more propose 10 new mosses. Most originated Jurassic diversified Cretaceous or later. phylogenomic data also highlight topological conflict parts tree, suggesting complex that cannot be adequately captured single gene‐tree topology. Conclusions sampled hundreds loci broad phylogenetic spectrum spanning at least 450 Ma evolution; these resolved critical nodes need explore mechanisms underlying ambiguity specific nodes. provide an expandable framework toward reconstructing comprehensive this important group plants.

Language: Английский

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African Mountain Thistles: Three New Genera in the Carduus-Cirsium Group

Plants, Journal Year: 2023, Volume and Issue: 12(17), P. 3083 - 3083

Published: Aug. 28, 2023

The floras on the highest mountains in tropical eastern Africa are among most unique world. Despite exceptionally high concentration of endemic species, these remain understudied from an evolutionary point view. In this study, we focus Carduus-Cirsium group (subtribe Carduinae) to unravel relationships species Afromontane and Afroalpine floras, aiming improve systematics group. We applied Hyb-Seq approach using Compositae1061 probe set 190 samples (159 species), encompassing representatives all genera Carduinae. used two recently developed pipelines that enabled processing raw sequence reads, identification paralogous sequences segregation into orthologous alignments. After implementation a missing data filter, retained 986 nuclear loci 177 plastid regions. Phylogenomic analyses were conducted both concatenated summary-coalescence methods. resulting phylogenies highly resolved revealed three distinct lineages consisting African traditionally referred as Carduus Cirsium. Consequently, propose new Afrocarduus, Afrocirsium Nuriaea; latter did notably not belong detected some incongruences between based concatenation vs. coalescence datasets, likely attributable incomplete lineage sorting and/or hybridization.

Language: Английский

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Macroclimatic niche similarity and species relatedness shift their influence on species co‐occurrence in bryophyte forest communities across scales

Journal of Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: April 17, 2025

Abstract The processes driving species co‐occurrence across scales are poorly understood. Bryophytes especially interesting in this respect because, while they disperse over long distances and have broad distributions, particularly affected by local conditions due to their small size. We investigated the relationship between pairwise associations within epiphytic bryophytes macroclimatic niche similarities taxonomic relatedness at four (global, regional, habitat microhabitat). used community data for 2000 trees from 107 forests northwest Iberian Peninsula, global occurrences 33 with calculate each scale bioclimatic similarity. also obtained distance matrices bibliography as a proxy phylogenetic species. Co‐occurrence relates similarity all scales, but decreases towards smaller scales. Taxonomic affinity was good indicator of not explained finest Interestingly, most relationships positive or neutral rather than negative, although direction approximately 7% these shifts microhabitat negative regional scale. Macroclimatic requirements progressively less important coexistence diminishes, probably effect unmeasured interactions, community‐level processes, microclimatic variations. Synthesis . Our results highlight that interactions may be least ones, if more, bryophyte They underscore patterns shift critical role both macro‐ microenvironmental shaping life strategies persistence populations plant group population dynamics characterized extensive geographic distributions. implications findings go beyond relevance ecology, challenging prevailing assumption limiting primarily shape ecological communities.

Language: Английский

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<i>Orthotrichum cupulatum</i> Hoffm. ex Brid. var. <i>lithophilum</i>, a new variety of epilithic bristle moss from Tasmania

Acta Societatis Botanicorum Poloniae, Journal Year: 2023, Volume and Issue: 92(1), P. 1 - 8

Published: Dec. 31, 2023

<i>Orthotrichum cupulatum</i> var. <i>lithophilum</i> is described as a new variety from Tasmania, Australia. The species primarily characterized by its exserted capsule with cryptoporous stomata, single peristome 16 exostome teeth, bistratose lamina of stem leaves, and densely hairy vaginula. Molecular data brief discussion comparing the newly most closely related taxa are also provided. analyses based on complete plastome sequences clearly separated typical form 272 molecular diagnostic characters specific for var.<i> lithophilum</i>. distinctiveness taxon was confirmed phylogenomics, which monophyly sister relationship to <i>cupulatum</i>.

Language: Английский

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Unveiling the diversification and dispersal of the Lewinskya firma complex (Orthotrichaceae, Bryophyta) across Africa and India

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: Sept. 27, 2024

Intercontinental disjunctions are one of the most attractive and interesting biogeographical patterns. Bryophytes often exhibit such distributions, which is partly explained by their great ability to disperse over long distances. However, intercontinental ranges sometimes a distorted reality caused existence unnoticed species. This study investigates whether disjunction between East Africa southern India moss Lewinskya firma reflects genuine distribution single species or implies pseudo-cryptic (whose morphological differentiation subtle have therefore been masked). An integrative taxonomic approach combining molecular methods (genotyping sequencing, GBS) was used, based on representation samples specifically collected from all major mountainous regions where this occurs. Two species, L. s. str. afroindica sp. nov. involved, whose completely overlap in Africa, although genetic distance differences leaf apex shape, vaginula hairs shape papillosity, spore ornamentation peristome constitution allow distinguishing both. In addition, range extends into both India. The phylogenetic reconstruction obtained shows certain degree Indian populations, they yet morphologically indistinguishable African populations. results thus highlight overlooked complexity bryophyte biogeography.

Language: Английский

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Temperature and Precipitation More Than Tree Cover Affect the Distribution Patterns of Epiphytic Mosses within the Orthotrichaceae Family in China and Adjacent Areas

Plants, Journal Year: 2023, Volume and Issue: 12(1), P. 222 - 222

Published: Jan. 3, 2023

Epiphytes, including vascular and non-vascular, constitute a large part of global plant biodiversity. Distribution obligatory epiphytic bryophytes results from climate local habitat conditions. The most important at the same time poorly investigated taxonomically problematic ones belong to family Orthotrichaceae. Epiphytic mosses are also ideal organisms for species modelling, because having no roots, they highly dependent on external environmental For this purpose, we used ecological niche modelling approach define their potential distribution in China adjacent areas explore factors that shape distribution. We 617 occurrence records 23 six genera within Orthotrichaceae family. Our suggest members is predominantly affected by bioclimatic variables, especially bio10 (mean temperature warmest quarter), bio15 (precipitation seasonality), bio18 bio19 coldest bio9 driest bio2 diurnal range). However, particular ruled different set those variables. two (Leratia Ulota) influenced land cover (especially mixed/other trees), whereas human footprint shows moderate contribution models three (Lewinskya, Orthotrichum, Nyholmiella). Based occupied climatic patterns, representatives studied divided into groups. 'western-montane group' characterised lower temperatures precipitation 'eastern-lowland' more humid warmer

Language: Английский

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A New Moss Record for Algeria: Orthotrichum macrocephalum F. Lara, Garilleti & Mazimpaka

Egyptian Journal of Botany, Journal Year: 2023, Volume and Issue: 0(0), P. 0 - 0

Published: Dec. 24, 2023

The bryoflora of the Setifian High Plains, which situated in Northeastern region Algeria is poorly known. Megriss Mountain one most important ecosystems this region. examination Orthotrichaceae samples collected during bryophytes diversity investigations northern part resulted identification epiphytic species; Orthotrichum macrocephalum F. Lara, Garilleti & Mazimpaka. was made based on its leaves with rounded or obtuse apices, recurved margins, pluripapillose laminal cells, presence propagules, emergent capsule eight longitudinal orange ribs and star-shaped mouth when dry, scarcely constricted below mouth, immersed stomata wall papillose endostome segments. This acrocarpous moss a marked affinity for Mediterranean climate has never been recorded Algerian bryoflora. A comprehensive description, microphotographs, distribution map species are provided. Moreover, ecology also discussed.

Language: Английский

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Ulota langxianensis Qinghua Wang & Y.Jia (Orthotrichaceae), a new high-altitude moss species from China

Journal of Bryology, Journal Year: 2024, Volume and Issue: 46(3), P. 208 - 214

Published: July 2, 2024

Introduction Worldwide, few species of Ulota are known from high-altitude regions (above 3000 m), and all these in China or Papua New Guinea. In this article, we describe U. langxianensis Qinghua Wang & Y.Jia, a new the region Xizang (Tibet) China.

Language: Английский

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Rediscovery of the Chinese endemic Florschuetziella scaberrima (Bryophyta: Orthotrichaceae) a century after its description leads to its transfer to Leratia

Bryophyte Diversity and Evolution, Journal Year: 2022, Volume and Issue: 45(1)

Published: Dec. 30, 2022

Florschuetziella scaberrima (Broth.) Vitt, previously known only from the type material collected in 1915 Yunnan, China, was rediscovered nearly a century later 2005. The species is morphologically indistinguishable Mexican endemic F. steerei but given paucity of two are provisionally retained as distinct, allopatric species. Both exhibit traits reminiscent Leratia neocaledonica Broth. & Paris, to New Caledonia. A shared ancestry with other currently accommodated i.e., L. exigua (Sull.) Goffinet and obtusifolia (Hook.) Goffinet, phylogenetically nested position Vitt within supports merger generic names, hence transfer Florschuetziella, prompting proposed new combinations (Vitt) S.He Shevock Shevock.

Language: Английский

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Codonoblepharonteae, a New Major Lineage among Orthotrichoideae (Orthotrichaceae, Bryophyta)

Plants, Journal Year: 2022, Volume and Issue: 11(24), P. 3557 - 3557

Published: Dec. 16, 2022

Orthotrichoideae aggregates epiphytic mosses widespread throughout temperate regions and high tropical mountains of the world. Recently, important advances have been made in elucidating its phylogenetic relationships evolutionary patterns. Fourteen genera are currently recognized within subfamily, which spread over two main tribes: Orthotricheae, comprising Orthotrichinae Lewinskyinae, Zygodonteae. Despite progress, some groups received little attention, as is case genus Codonoblepharon. Recent studies suggested that this may represent a separate lineage from Zygodonteae, it traditionally has considered. Although, none were conclusive they did not include representative sampling Codonoblepharon species. This work aims to evaluate taxonomic position Orthotrichoideae. For purpose, we present an updated tree based on four different loci, one belonging nuclear genome (ITS2) rest plastid (rps4, trnG trnL-F). The reconstruction recovers all samples monophyletic group, sister constituting independent tribes. reason, propose new tribe Codonoblepharonteae accommodate

Language: Английский

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