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  • 1
    Online Resource
    Online Resource
    Natural hybridization in tropical spikerushes of Eleocharis subgenus Limnochloa (Cyperaceae): Evidence from morphology and DNA markers
    Wiley ; 2010
    In:  American Journal of Botany Vol. 97, No. 7 ( 2010-07), p. 1229-1240
    Details
    In: American Journal of Botany, Wiley, Vol. 97, No. 7 ( 2010-07), p. 1229-1240
    Abstract: • Premise of the study: Natural hybridization represents an important force driving plant evolution and affecting community structure and functioning. Hybridization may be overlooked, however, among morphologically highly uniform congeners. An excellent example of such a group is Eleocharis subgenus Limnochloa , which has no reliably proven hybrids. Does this reflect biological barriers to interspecific crosses or difficulties in detecting the hybrids? We tested the hypothesis that hybridization occurs among sympatric Eleocharis cellulosa , E. interstincta , and E. mutata in northern Belize, Central America. • Methods: Morphometric study (407 plants) was followed by examination of inter‐simple sequence repeat (ISSR) polymorphisms (44 plants) and ITS sequence variation (33 plants). • Key results: Two putatively hybrid morphotypes were discerned— E. cellulosa ‐resembling and E. interstincta ‐resembling. DNA markers of E. cellulosa and E. interstincta displayed additive constitution in plants from one E. cellulosa ‐resembling population only. The other putatively hybrid populations contained ISSR and ITS markers of the species they resembled morphologically, several unique ISSR markers, and ITS sequences of an undescribed South American Limnochloa entity. DNA markers of E. mutata were absent in the putative hybrids. • Conclusions: Simultaneous use of various types of molecular markers can overcome many pitfalls of investigations concerning hybridization among closely related and morphologically similar species. Northern Belize represents a hybrid zone of E. cellulosa and E. interstincta . A third participant in the hybridization events occurring in this zone is an unknown Limnochloa lineage but is not E. mutata . Interspecific hybridization may play a significant role in the diversification of Eleocharis .
    Type of Medium: Online Resource
    ISSN: 0002-9122 , 1537-2197
    URL: Article
    DOI: 10.3732/ajb.1000029
    RVK:
    WA 15000
    Language: English
    Publisher: Wiley
    Publication Date: 2010
    detail.hit.zdb_id: 2053581-8
    SSG: 12
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  • 2
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    Online Resource
    Martin7 : a reference database of DNA barcodes for European epiphytic lichens and its taxonomic implications
    Czech Botanical Society ; 2023
    In:  Preslia Vol. 95, No. 3 ( 2023), p. 311-345
    Details
    In: Preslia, Czech Botanical Society, Vol. 95, No. 3 ( 2023), p. 311-345
    Type of Medium: Online Resource
    ISSN: 0032-7786
    URL: Article
    DOI: 10.23855/preslia.2023.311
    Language: English
    Publisher: Czech Botanical Society
    Publication Date: 2023
    detail.hit.zdb_id: 2128739-9
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  • 3
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    Alcobiosis, an algal-fungal association on the threshold of lichenisation
    Springer Science and Business Media LLC ; 2023
    In:  Scientific Reports Vol. 13, No. 1 ( 2023-02-28)
    Details
    In: Scientific Reports, Springer Science and Business Media LLC, Vol. 13, No. 1 ( 2023-02-28)
    Abstract: Alcobiosis, the symbiosis of algae and corticioid fungi, frequently occurs on bark and wood. Algae form a layer in or below fungal basidiomata reminiscent of the photobiont layer in lichens. Identities of algal and fungal partners were confirmed by DNA barcoding. Algal activity was examined using gas exchange and chlorophyll fluorescence techniques. Carbon transfer from algae to fungi was detected as 13 C, assimilated by algae, transferred to the fungal polyol. Nine fungal partners scattered across Agaricomycetes are associated with three algae from Trebouxiophycae: Coccomyxa sp. with seven fungal species on damp wood, Desmococcus olivaceus and Tritostichococcus coniocybes , both with a single species on bark and rain-sheltered wood, respectively. The fungal partner does not cause any obvious harm to the algae. Algae enclosed in fungal tissue exhibited a substantial CO 2 uptake, but carbon transfer to fungal tissues was only detected in the Lyomyces-Desmococcus alcobiosis where some algal cells are tightly enclosed by hyphae in goniocyst-like structures. Unlike lichen mycobionts, fungi in alcobioses are not nutritionally dependent on the algal partner as all of them can live without algae. We consider alcobioses to be symbioses in various stages of co-evolution, but still quite different from true lichens.
    Type of Medium: Online Resource
    ISSN: 2045-2322
    URL: Article
    DOI: 10.1038/s41598-023-29384-4
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2023
    detail.hit.zdb_id: 2615211-3
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  • 4
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    Online Resource
    Extensive yellow crusts below limestone overhangs: a new taxon close to a minute epiphytic lichen
    Wiley ; 2017
    In:  Nordic Journal of Botany Vol. 35, No. 3 ( 2017-06), p. 368-376
    Details
    In: Nordic Journal of Botany, Wiley, Vol. 35, No. 3 ( 2017-06), p. 368-376
    Abstract: A conspicuous yellow crust forming extensive covers on some dry and shaded limestone rocks in Europe is described here as Caloplaca substerilis subsp. orbicularis M. Haji Moniri, Vondrák & Malíček subsp. nov. Based on nuITS rDNA, 28S nuLSU rDNA and mtSSU rDNA sequence data, the new taxon is closely related to Caloplaca substerilis and C. ulcerosa . The three taxa form a supported clade in the subfamily Xanthorioideae (Teloschistaceae), but none of the recently seggregated genera are suitable for them. In the ITS phylogeny, the new taxon forms a monophylum nested within C. substerilis . However, its extensive yellow thalli and absence of vegetative diaspores clearly distinguish it from Caloplaca substerilis (subsp. substerilis ). Indeed, if it had not been for the molecular evidence, we would have described it at the rank of species. We suggest that the substrate switch and accompanying processes are responsible for the striking phenotypic difference between Caloplaca substerilis subsp. substerilis and C. substerilis subsp. orbicularis .
    Type of Medium: Online Resource
    ISSN: 0107-055X , 1756-1051
    URL: Issue
    URL: Article
    DOI: 10.1111/njb.2017.v35.i3
    DOI: 10.1111/njb.01371
    Language: English
    Publisher: Wiley
    Publication Date: 2017
    detail.hit.zdb_id: 2406507-9
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  • 5
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    Online Resource
    Fungal root symbionts of high-altitude vascular plants in the Himalayas
    Springer Science and Business Media LLC ; 2017
    In:  Scientific Reports Vol. 7, No. 1 ( 2017-07-26)
    Details
    In: Scientific Reports, Springer Science and Business Media LLC, Vol. 7, No. 1 ( 2017-07-26)
    Abstract: Arbuscular mycorrhizal fungi (AMF) and dark septate endophytes (DSE) form symbiotic relationships with plants influencing their productivity, diversity and ecosystem functions. Only a few studies on these fungi, however, have been conducted in extreme elevations and none over 5500 m a.s.l., although vascular plants occur up to 6150 m a.s.l. in the Himalayas. We quantified AMF and DSE in roots of 62 plant species from contrasting habitats along an elevational gradient (3400–6150 m) in the Himalayas using a combination of optical microscopy and next generation sequencing. We linked AMF and DSE communities with host plant evolutionary history, ecological preferences (elevation and habitat type) and functional traits. We detected AMF in elevations up to 5800 m, indicating it is more constrained by extreme conditions than the host plants, which ascend up to 6150 m. In contrast, DSE were found across the entire gradient up to 6150 m. AMF diversity was unimodally related to elevation and positively related to the intensity of AMF colonization. Mid-elevation steppe and alpine plants hosted more diverse AMF communities than plants from deserts and the subnival zone. Our results bring novel insights to the abiotic and biotic filters structuring AMF and DSE communities in the Himalayas.
    Type of Medium: Online Resource
    ISSN: 2045-2322
    URL: Article
    DOI: 10.1038/s41598-017-06938-x
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2017
    detail.hit.zdb_id: 2615211-3
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  • 6
    Online Resource
    Online Resource
    From Cinderella to Princess : an exceptional hotspot of lichen diversity in a long-inhabited central-European landscape
    Czech Botanical Society ; 2022
    In:  Preslia Vol. 94, No. 1 ( 2022), p. 143-181
    Details
    In: Preslia, Czech Botanical Society, Vol. 94, No. 1 ( 2022), p. 143-181
    Type of Medium: Online Resource
    ISSN: 0032-7786
    URL: Article
    DOI: 10.23855/preslia.2022.143
    Language: English
    Publisher: Czech Botanical Society
    Publication Date: 2022
    detail.hit.zdb_id: 2128739-9
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  • 7
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    Online Resource
    Clonal growth forms in Arctic plants and their habitat preferences: a study from Petuniabukta, Spitsbergen
    Polish Academy of Sciences Chancellery ; 2012
    In:  Polish Polar Research Vol. 33, No. 4 ( 2012-12-1), p. 421-442
    Details
    In: Polish Polar Research, Polish Academy of Sciences Chancellery, Vol. 33, No. 4 ( 2012-12-1), p. 421-442
    Abstract: The ability to grow clonally is generally considered important for plants in Arctic regions but analyses of clonal characteristics are lacking for entire plant communities. To fill this gap, we assessed the clonal growth of 78 plant species in the Petuniabukta region, central Spitsbergen (Svalbard), and analyzed the clonal and other life-history traits in the re- gional flora and plant communities with respect to environmental gradients. We distin- guished five categories of clonal growth organs: perennial main roots produced by non- clonal plants, epigeogenous rhizomes, hypogeogenous rhizomes, bulbils, and stolons. Clonal growth differed among communities of the Petuniabukta region: non-clonal plants prevailed in open, early-successional communities, but clonal plants prevailed in wetlands. While the occurrence of plants with epigeogenous rhizomes was unrelated to stoniness or slope, the occurrence of plants with hypogeogenous rhizomes diminished with increasing stoniness of the substratum. Although the overall proportion of clonal plants in the flora of the Petuniabukta region was comparable to that of central Europe, the flora of the Petunia- bukta region had fewer types of clonal growth organs, a slower rate of lateral spread, and a different proportion of the two types of rhizomes.
    Type of Medium: Online Resource
    ISSN: 2081-8262 , 0138-0338
    URL: Article
    DOI: 10.2478/v10183-012-0019-y
    Language: Unknown
    Publisher: Polish Academy of Sciences Chancellery
    Publication Date: 2012
    detail.hit.zdb_id: 2261592-1
    SSG: 14
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  • 8
    Online Resource
    Online Resource
    Substrate switches, phenotypic innovations and allopatric speciation formed taxonomic diversity within the lichen genus Blastenia
    Wiley ; 2020
    In:  Journal of Systematics and Evolution Vol. 58, No. 3 ( 2020-05), p. 295-330
    Details
    In: Journal of Systematics and Evolution, Wiley, Vol. 58, No. 3 ( 2020-05), p. 295-330
    Abstract: Blastenia is a widely distributed lichen genus in Teloschistaceae. We reconstructed its phylogeny in order to test species delimitation and to find evolutionary drivers forming recent Blastenia diversity. The origin of Blastenia is dated to the early Tertiary period, but later diversification events are distinctly younger. We recognized 24 species (plus 2 subspecies) within 6 infrageneric groups. Each species strongly prefers a single type of substrate (17 species occur on organic substrates, 7 on siliceous rock), and most infrageneric groups also show a clear substrate preference. All infrageneric groups tend to have the Mediterranean and Macaronesian distribution, but some epiphytic species have much larger geographic ranges and some evolved after a long‐distance dispersal outside the region. Chlorinated and nonchlorinated anthraquinone chemosyndromes co‐occur in apothecia of most species, but the chemotype has been secondarily reduced in some lineages. One infrageneric group has a marked reduction in apothecial size, associated with a substrate shift to twigs. Only seven species have vegetative diaspores; they also produce apothecia but have smaller ascospores. Genome sizes (22‐35 Mb in Blastenia ) are significantly higher in epilithic species. Within‐species genetic variation is low in widely distributed species but high in some epilithic species with small geographical ranges. New taxa are: B. afroalpina , B. anatolica , B. caucasica , B. gennargentuae , B. herbidella subsp. acidophila , B. lauri , B. monticola , B. palmae , B. psychrophila , B. purpurea , B. relicta , B. remota , B. xerothermica , and B. xerothermica subsp. macaronesica . New combinations are: B. festivella and B. subathallina ; both names and B. catalinae are lectotypified.
    Type of Medium: Online Resource
    ISSN: 1674-4918 , 1759-6831
    URL: Issue
    URL: Article
    DOI: 10.1111/jse.v58.3
    DOI: 10.1111/jse.12503
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 2516638-4
    SSG: 6,25
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  • 9
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    Waking up from a taxonomist’s nightmare: emerging structure of Ranunculus section Batrachium (Ranunculaceae) in central Europe based on molecular data and genome sizes
    Oxford University Press (OUP) ; 2022
    In:  Botanical Journal of the Linnean Society Vol. 198, No. 4 ( 2022-03-22), p. 417-437
    Details
    In: Botanical Journal of the Linnean Society, Oxford University Press (OUP), Vol. 198, No. 4 ( 2022-03-22), p. 417-437
    Abstract: Ranunculus section Batrachium (water crowfoot) ranks among the most taxonomically challenging aquatic plant groups due to morphological reduction, phenotypic plasticity, polyploidy and reticulate evolution. This study, for the first time in this group, linked morphology, genome size and genetic data (two non-coding regions of plastid DNA and the ITS region of nuclear ribosomal DNA). This extensive data set, including 258 central European populations, enables us to recognize widespread lineages from hybrids and to trace the evolutionary processes underlying the observed diversity. Most of the traditionally recognized species are supported. However, the presence of two morphologically cryptic but genetically well-differentiated lineages was detected within Ranunculus trichophyllus, and three separate lineages of different parentage were confirmed in the Ranunculus penicillatus complex. An allopolyploid origin was revealed in Ranunculus aquatilis, Ranunculus baudotii and in both lineages of R. trichophyllus, for which the parentage has not yet been studied, and allopolyploidy is suspected in all other polyploid taxa except for the triploid cytotype of Ranunculus fluitans, which is most likely autopolyploid. We detected putative F1 hybrids of seven different parentage combinations, including two involving Ranunculus rionii, representing the first known hybrids of this species. An additional 13 hybrid cytotypes (backcrosses or entailing additional polyploidization) were revealed; c. 20% of Ranunculus peltatus accessions seem to be influenced by introgression detectable only using sequence data. The Batrachium group is remarkable due to the coexistence of well-defined lineages with recently evolved biotypes arising due to hybridization and polyploidization.
    Type of Medium: Online Resource
    ISSN: 0024-4074 , 1095-8339
    URL: Article
    DOI: 10.1093/botlinnean/boab063
    Language: English
    Publisher: Oxford University Press (OUP)
    Publication Date: 2022
    detail.hit.zdb_id: 1462255-5
    SSG: 12
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  • 10
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    The oldest sequenced fungal herbarium sample
    Cambridge University Press (CUP) ; 2012
    In:  The Lichenologist Vol. 44, No. 5 ( 2012-09), p. 715-718
    Details
    In: The Lichenologist, Cambridge University Press (CUP), Vol. 44, No. 5 ( 2012-09), p. 715-718
    Type of Medium: Online Resource
    ISSN: 0024-2829 , 1096-1135
    URL: Article
    DOI: 10.1017/S002428291200031X
    Language: English
    Publisher: Cambridge University Press (CUP)
    Publication Date: 2012
    detail.hit.zdb_id: 1471008-0
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