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1.

001-es BibID:BIBFORM082711
035-os BibID:(cikkazonosító)e0226551 (WOS)000534249400045 (Scopus)85077021542
Első szerző:Costea, Mihai
Cím:The effect of gut passage by waterbirds on the seed coat and pericarp of diaspores lacking "external flesh" : evidence for widespread adaptation to endozoochory in angiosperms / Mihai Costea, Hiba El Miari, Levente Laczkó, Réka Fekete, Attila V. Molnár, Ádám Lovas-Kiss, Andy J. Green
Dátum:2019
ISSN:1932-6203
Megjegyzések:The widely accepted "endozoochory syndrome" is assigned to angiosperm diaspores with a fleshy, attractive tissue and implies the existence of adaptations for protection against digestion during gut passage. This syndrome has led diaspore fleshiness to be emphasized as the exclusive indicator of endozoochory in much of the ecology and biogeography research. Crucially, however, endozoochory in nature is not limited to frugivory, and diaspores without "external flesh" are commonly dispersed, often over long distances, via birds and mammals by granivory. A key question is: are such diaspores somehow less prepared from an architectural point of view to survive gut passage than fleshy diaspores? To answer this question, we selected 11 European angiosperm taxa that fall outside the classical endozoochory syndrome yet are known to be dispersed via endozoochory. We studied their seed coat/pericarp morphology and anatomy both before and after gut passage through granivorous waterfowl, and determined their seed survival and germinability. We found no fundamental differences in the mechanical architecture of the seed coat and pericarp between these plants dispersed by granivory and others dispersed by frugivory. Neither diaspore traits per se, nor dormancy type, were strong predictors of diaspore survival or degree of damage during gut passage through granivores, or of the influence of gut passage on germinability. Among our 11 taxa, survival of gut passage is enabled by the thick cuticle of the exotesta or epicarp; one or several lignified cell layers; and diverse combinations of other architectural elements. These protection structures are ubiquitous in angiosperms, and likely to have evolved in gymnosperms. Hence, many angiosperm diaspores, dry or fleshy, may be pre-adapted to endozoochory, but with differing degrees of specialization and adaptation to dispersal mechanisms such as frugivory and granivory. Our findings underline the broad ecological importance of "non-classical endozoochory" of diaspores that lack "external flesh".
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
endozoochory
Megjelenés:Plos One. - 14 : 12 (2019), p. 1-22. -
További szerzők:El Miari, Hiba Laczkó Levente (1992-) (biológus) Fekete Réka (1993-) (biológus) Molnár V. Attila (1969-) (biológus, botanikus) Lovas-Kiss Ádám (1991-) (biológus, botanikus) Green, Andy J.
Pályázati támogatás:OTKA K108992
OTKA
ÚNKP-19-4-DE-172
Egyéb
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2.

001-es BibID:BIBFORM091932
Első szerző:Horváth Orsolya
Cím:The Phylogenetic Position of Vincetoxicum pannonicum (Borhidi) Holub Supports the Species' Allopolyploid Hybrid Origin / Orsolya Horváth, Levente Laczkó, Zsuzsa Lisztes-Szabó, Attila Molnár V., Agnieszka Popiela, Gábor Sramkó
Dátum:2020
ISSN:0001-6977 2083-9480
Megjegyzések:The Pannonian endemic species Vincetoxicum pannonicum was described from specimens collected in Hungary and occurs at only few locations. It is considered "vulnerable" according to the International Red List. The chromosome set was reported to be tetraploid, and the species was hypothesized to be an allotetraploid hybrid of the Balkan species V. fuscatum and the Adriatic species hirundinaria subsp. adriaticum. We investigated the origin of V. pannonicum using molecular phylogenetic methods by separately analyzing the multicopy nuclear ribosomal internal transcribed spacer (nrITS) and the plastid-encoded trnH-psbA DNA regions and by evaluating discrepancies between the produced gene trees. Paralogs in the nrITS region clustered in two main groups, one of which was closest to V. fuscatum, and the other included V. hirundinaria subsp. adriaticum. According to trnH-psbA sequences, V. pannonicum and V. hirundinaria subsp. adriaticum formed a single group. Our results show that V. pannonicum diversified because of hybrid speciation, in which V. fuscatum was the pollen donor. We discovered a similar placement of V. maeoticum, which suggests a further hybridization event between V. fuscatum and a species of the V. hirundinaria group. Our genome-size estimate indicates almost sixfold larger genome size in V. pannonicum compared to the maternal diploid parent, suggesting hexaploidy; however, V. pannonicum is tetraploid. This may suggest cytological diploidization in the allopolyploid V. pannonicum. We observed substantial genetic distance between V. hirundinaria subsp. adriaticum and all other subspecies of V. hirundinaria, and we therefore propose that V. adriaticum should be regarded as a separate species.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Acta Societatis Botanicorum Poloniae. - 89 : 3 (2020), p. 1-14. -
További szerzők:Laczkó Levente (1992-) (biológus) Lisztes-Szabó Zsuzsa (1976-) (biológus) Molnár V. Attila (1969-) (biológus, botanikus) Popiela, Agnieszka Sramkó Gábor (1981-) (biológus)
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3.

001-es BibID:BIBFORM118760
035-os BibID:(cikkazonosító)219
Első szerző:Laczkó Levente (biológus)
Cím:The draft genome of Spiraea crenata L. (Rosaceae) - the frst complete genome in tribe Spiraeeae / Levente Laczkó, Sándor Jordán, Szilárd Póliska, Hanna Viktória Rácz, Nikoletta Andrea Nagy, Attila Molnár V., Gábor Sramkó
Dátum:2024
ISSN:2052-4463
Megjegyzések:Spiraea crenata L. is a deciduous shrub distributed across the Eurasian steppe zone. The species is of cultural and horticultural importance and occurs in scattered populations throughout its westernmost range. Currently, there is no genomic information on the tribe of Spiraeeae. Therefore we sequenced and assembled the whole genome of S. crenata using second- and third-generation sequencing and a hybrid assembly approach to expand genomic resources for conservation and support research on this horticulturally important lineage. In addition to the organellar genomes (the plastome and the mitochondrion), we present the first draft genome of the species with an estimated size of 220 Mbp, an N50 value of 7.7 Mbp, and a BUSCO score of 96.0%. Being the first complete genome in tribe Spiraeeae, this may not only be the first step in the genomic study of a rare plant but also a contribution to genomic resources supporting the study of biodiversity and evolutionary history of Rosaceae.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
whole genome
genome assembly
non-model plant
Megjelenés:Scientific Data. - 11 : 1 (2024), p.1-11. -
További szerzők:Jordán Sándor (1992-) Póliska Szilárd (1978-) (biológus) Rácz Hanna Viktória (1994-) (biológus) Nagy Nikoletta Andrea (1990-) (biológus) Molnár V. Attila (1969-) (biológus, botanikus) Sramkó Gábor (1981-) (biológus)
Pályázati támogatás:FK137962
OTKA
ÚNKP-22-3-II-DE-172
Egyéb
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4.

001-es BibID:BIBFORM082823
035-os BibID:(MTMT)3183051
Első szerző:Laczkó Levente (biológus)
Cím:A medvefülkankalinok (Primula auricula agg.) filogeográfiája a Kárpát-medencében = Phylogeography of bears's ears (Primula auricula agg.) in the Carpathian Basin / Laczkó Levente, Bauer Norbert, Molnár V. Attila, Sramkó Gábor
Dátum:2016
ISBN:978 963 9877 25 2
Tárgyszavak:Természettudományok Környezettudományok előadáskivonat
könyvrészlet
Megjelenés:XI. Aktuális flóra- és vegetációkutatás a Kárpát-medencében : nemzetközi konferencia = "Advances in research on the flora and vegetation of the Carpato-Pannonian region". - p. 12-13. -
További szerzők:Bauer Norbert Molnár V. Attila (1969-) (biológus, botanikus) Sramkó Gábor (1981-) (biológus)
Pályázati támogatás:OTKA Kl08992
OTKA
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5.

001-es BibID:BIBFORM082707
Első szerző:Laczkó Levente (biológus)
Cím:Is Nymphaea lotus var. thermalis a Tertiary relict in Europe? / Levente Laczkó, Balázs András Lukács, Attila Mesterházy, Attila Molnár V., Gábor Sramkó
Dátum:2019
ISSN:0304-3770
Megjegyzések:Nymphaea lotus L. is a tropical and subtropical species of waterlilies with an African distribution. A conspicuous satellite occurrence can be found in Europe in a thermal spring in NW Romania. This population (treated as var. thermalis (DC.) Tuzson) received much attention as a potential Tertiary relict in the flora of Europe, although its relict vs. planted nature has been part of great debate among scholars during the last 200 years. We revisit this question by using molecular phylogenetic methods to estimate the timing of divergence of this species, and put this population into a phylogeographic context by comparing it to samples coming from the whole area of the species. By using sequences of the nuclear and the plastid genome, we reconstructed the phylogeographic relationships within N. lotus with a haplotype network building approach, that identified a genetically distant lineage in western Africa, which we relate to N. zenkeri Gilg, the sister species of N. lotus. All the populations of N. lotus s.str. displayed genetic distance between each other except for the Egyptian and Romanian populations. On our dated phylogeny of the subgenus Lotus the separation between N. lotus and its sister species was found to be younger than the end of the Tertiary (1.26 Mya). These results clearly refute the Tertiary relict status of the European population of N. lotus.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Cultural relict
Nymphaea subg. lotos
N. zenkeri
Phylogeography
Satellite population
Natura 2000
Transylvanian hot-spring lotus beds (31A0)
Thermal refugium
Megjelenés:Aquatic Botany. - 155 (2019), p. 1-4. -
További szerzők:Lukács Balázs András (1979-) (ökológus) Mesterházy Attila Molnár V. Attila (1969-) (biológus, botanikus) Sramkó Gábor (1981-) (biológus)
Pályázati támogatás:TÁMOP-4.2.2/B-10/-1-2010-0024
TÁMOP
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6.

001-es BibID:BIBFORM089598
035-os BibID:(WOS)000507139300001 (Scopus)85077993919
Első szerző:Lovas-Kiss Ádám (biológus, botanikus)
Cím:Seed mass, hardness, and phylogeny explain the potential for endozoochory by granivorous waterbirds / Lovas-Kiss Ádám, Vincze Orsolya, Kleyheeg Erik, Sramkó Gábor, Laczkó Levente, Fekete Réka, Molnár V. Attila, Green J. Andy
Dátum:2020
ISSN:2045-7758
Megjegyzések:Field studies have shown that waterbirds, especially members of the Anatidae family, are major vectors of dispersal by endozoochory for a broad range of plants lacking a fleshy fruit, yet whose propagules can survive gut passage. Widely adopted dispersal syndromes ignore this dispersal mechanism, and we currently have little understanding of what traits determine the potential of angiosperms for endozoochory by waterbirds. Results from previous experimental studies have been inconsistent as to how seed traits affect seed survival and retention time in the gut and have failed to control for the influence of plant phylogeny. Using 13 angiosperm species from aquatic and terrestrial habitats representing nine families, we examined the effects of seed size, shape, and hardness on the proportion of seeds surviving gut passage through mallards (Anas platyrhynchos) and their retention time within the gut. We compiled a molecular phylogeny for these species and controlled for the nonindependence of taxa due to common descent in our analyses. Intact seeds from all 13 species were egested, but seed survival was strongly determined by phylogeny and by partial effects of seed mass and hardness (wet load): species with seeds harder than expected from their size, and smaller than expected from their loading, had greater survival. Once phylogeny was controlled for, a positive partial effect of seed roundness on seed survival was also revealed. Species with seeds harder than expected from their size had a longer mean retention time, a result retained after controlling for phylogeny. Our study is the first to demonstrate that seed shape and phylogeny are important predictors of seed survival in the avian gut. Our results demonstrate that the importance of controlling simultaneously for multiple traits and relating single traits (e.g., seed size) alone to seed survival or retention time is not a reliable way to detect important patterns, especially when phylogenetic effects are ignored.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Anas platyrhynchos
endozoochory
phylogeny
retention time
seed dispersal
seed traits
Megjelenés:Ecology and Evolution. - 10 : 3 (2020), p. 1413-1424. -
További szerzők:Vincze Orsolya (1988-) (biológus) Kleyheeg Erik Sramkó Gábor (1981-) (biológus) Laczkó Levente (1992-) (biológus) Fekete Réka (1993-) (biológus) Molnár V. Attila (1969-) (biológus, botanikus) Green, Andy J.
Pályázati támogatás:OTKA-108992
OTKA
ÚNKP-19-4-DE-172
Egyéb
ÚNKP-19-4-DE-538
Egyéb
ÚNKP-18-3-I-DE-355
Egyéb
NKFIH-FK-127939
Egyéb
NKFIH-KH-129520
Egyéb
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7.

001-es BibID:BIBFORM082824
035-os BibID:(MTMT)3032063
Első szerző:Sramkó Gábor (biológus)
Cím:A bókoló zsálya hazai, periférikus állományainak populációgenetikai vizsgálata - tanulságok a természetvédelem számára = Conservation genetics of the endangered steppe relict, Salvia nutans, on its distribution periphery - conservation implications / Sramkó Gábor, Laczkó Levente, Sallainé Kapocsi Judit, Lisztes-Szabó Zsuzsa, Molnár V. Attila
Dátum:2016
ISBN:978 963 9877 25 2
Tárgyszavak:Természettudományok Környezettudományok előadáskivonat
könyvrészlet
Megjelenés:XI. Aktuális flóra- és vegetációkutatás a Kárpát-medencében : nemzetközi konferencia = "Advances in research on the flora and vegetation of the Carpato-Pannonian region". - p. 63-64. -
További szerzők:Laczkó Levente (1992-) (biológus) Sallainé Kapocsi Judit Lisztes-Szabó Zsuzsa (1976-) (biológus) Molnár V. Attila (1969-) (biológus, botanikus)
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8.

001-es BibID:BIBFORM082713
035-os BibID:(WoS)000503880300015 (Scopus)85073582914
Első szerző:Sramkó Gábor (biológus)
Cím:Iterative allogamy-autogamy transitions drive actual and incipient speciation during the ongoing evolutionary radiation within the orchid genus Epipactis (Orchidaceae) / Gábor Sramkó, Ovidiu Paun, Marie K. Brandrud, Levente Laczkó, Attila Molnár V., Richard M. Bateman
Dátum:2019
ISSN:0305-7364 1095-8290
Megjegyzések:Background and Aims The terrestrial orchid genus Epipactis has become a model system for the study of speciation via transitions from allogamy to autogamy, but close phylogenetic relationships have proven difficult to resolve through Sanger sequencing. Methods We analysed with restriction site-associated sequencing (RAD-seq) 108 plants representing 29 named taxa that together span the genus, focusing on section Epipactis. Our filtered matrix of 12 543 single nucleotide polymorphisms was used to generate an unrooted network and a rooted, well-supported likelihood tree. We further inferred genetic structure through a co-ancestry heat map and admixture analysis, and estimated inbreeding coefficients per sample. Key Results The 27 named taxa of the ingroup were resolved as 11 genuine, geographically widespread species: four dominantly allogamous and seven dominantly autogamous. A single comparatively allogamous species, E. helleborine, is the direct ancestor of most of the remaining species, though one of the derived autogams has generated one further autogamous species. An assessment of shared ancestry suggested only sporadic hybridization between the re-circumscribed species. Taxa with the greatest inclination towards autogamy show less, if any, admixture, whereas the gene pools of more allogamous species contain a mixture alleles found in the autogams. Conclusions This clade is presently undergoing an evolutionary radiation driven by a wide spectrum of genotypic, phenotypic and environmental factors. Epipactis helleborine has also frequently generated many local variants showing inclinations toward autogamy (and occasionally cleistogamy), best viewed as incipient speciation from within the genetic background provided by E. helleborine, which thus becomes an example of a convincingly paraphyletic species. Autogams are often as widespread and ecologically successful as allogams.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Admixture
autogamy
evolutionary dead-end
evolutionary radiation
phylogeography
paraphyly
phylogenomics
RAD-seq
speciation
Megjelenés:Annals Of Botany. - 124 : 3 (2019), p. 481-497. -
További szerzők:Paun, Ovidiu Brandrud, Marie K. Laczkó Levente (1992-) (biológus) Molnár V. Attila (1969-) (biológus, botanikus) Bateman, Richard M.
Pályázati támogatás:OTKA PD109686
OTKA
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9.

001-es BibID:BIBFORM066223
035-os BibID:(cikkazonosító)e2800 (PMID)28028470 (PMCID)PMC5180590 (WoS)000390663600007 (Scopus)85007285369
Első szerző:Sramkó Gábor (biológus)
Cím:Molecular phylogenetics, seed morphometrics, chromosome number evolution and systematics of European Elatine L. (Elatinaceae) species / Gábor Sramkó, Attila Molnár V., János Pál Tóth, Levente Laczkó, Anna Kalinka, Orsolya Horváth, Lidia Skuza, Balázs András Lukács, Agnieszka Popiela
Dátum:2016
ISSN:2167-8359
Megjegyzések:The genus Elatine contains ca 25 species, all of which are small, herbaceous annuals distributed in ephemeral waters on both hemispheres. However, due a high degree of morphological variability (as a consequence of their amphibious life-style), the taxonomy of this genus remains controversial. Thus, to fill this gap in knowledge, we present a detailed molecular phylogenetic study of this genus based on nuclear (rITS) and plastid (accD-psaI, psbJ-petA, ycf6-psbM-trnD) sequences using 27 samples from 13 species. On the basis of this phylogenetic analysis, we provide a solid phylogenetic background for the modern taxonomy of the European members of the genus. Traditionally accepted sections of this tree (i.e. Crypta and Elatinella) were found to be monophyletic, only E. brochonii - found to be a basal member of the genus - has to be excluded from the latter lineage to enforce monophyly. A number of taxonomic conclusions can also be drawn: E. hexandra, an high-ploid species is most likely a stabilised hybrid between the main sections; E. ampylosperma merits full species status based on bothmolecular and morphological evidence; E. gussonei is a more widespread and genetically diverse species with two main lineages, and the presence of the Asian E. ambigua in the European flora is questionable. The main lineages recovered in this analysis are also supported by a number ofsynapomorphic morphological characters as well as uniform chromosome counts. Based on all the evidence presented here, two new subsections within Elatinella are described: Subsection Hydropipera consisting of temperate species of the section, and; Subsection Macropodae including the Mediterranean species of the section.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:PeerJ. - 4 (2016), p. 1-25. -
További szerzők:Molnár V. Attila (1969-) (biológus, botanikus) Tóth János Pál (1981-) Laczkó Levente (1992-) (biológus) Kalinka Anna Horváth Orsolya Skuza Lidia Lukács Balázs András (1979-) (ökológus) Popiela, Agnieszka
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10.

001-es BibID:BIBFORM065250
Első szerző:Takács Attila (biológus, botanikus)
Cím:A herbáriumok 'új típusú' felhasználásai / Takács Attila, Laczkó Levente, Molnár V. Attila
Dátum:2013
ISSN:0006-8144 2415-9662
Tárgyszavak:Természettudományok Biológiai tudományok magyar nyelvű folyóiratközlemény hazai lapban
Megjelenés:Botanikai Közlemények. - 100 : 1-2 (2013), p. 217-238. -
További szerzők:Laczkó Levente (1992-) (biológus) Molnár V. Attila (1969-) (biológus, botanikus)
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