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001-es BibID:BIBFORM104020
035-os BibID:(WoS)000501222900001 (Scopus)85076278037
Első szerző:Bereczki Judit (biológus)
Cím:Incipient sympatric speciation via host race formation in Phengaris arion (Lepidoptera: Lycaenidae) / Judit Bereczki, Szilárd Póliska, Alex Váradi, János P. Tóth
Dátum:2019
ISSN:1439-6092
Megjegyzések:The plausibility of sympatric speciation is still debated despite increasing evidence, such as host races in insects. This speciation process may be occurring in the case of the two phenological forms of the obligatorily myrmecophilous Phengaris arion. The main goal of our research was to study the nature and causes of difference between these forms focusing primarily on the incipient speciation via host races. Molecular analyses based on highly variable microsatellites together with Wolbachia screening, male genitalia morphometrics and host ant studies were carried out on four syntopic sample pairs. Our results show that the two phenological forms of P. arion may meet the criteria for host plant races. They coexist in sympatry in certain parts of the species range which is allowed by the adaptation to the distinct phenology of the host plants. Negative selection acts against the intermediate individuals which are on the wing in the inappropriate time frame. Thus, disruptive selection affects and produces bimodal distributions of phenotypes. However, the phenology of food plants is not entirely distinct and fluctuates year by year. Therefore, the two forms can exchange genes occasionally depending on the length of the time slot when they can meet with each other. Consequently, the reproductive isolation could not be completed and the existence of the two arion forms may represent only an incipient stage of sympatric speciation. It is also clear that Wolbachia is likely not a driver of sympatric speciation in this case.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Spring and summer arion
Microsatellites
Genetic differentiation
Male genitalia morphometrics
Wolbachia
Megjelenés:Organisms Diversity & Evolution. - 20 : 1 (2019), p. 63-76. -
További szerzők:Póliska Szilárd (1978-) (biológus) Váradi Alex (1991-) (biológus) Tóth János Pál (1981-)
Pályázati támogatás:OTKA-109223
OTKA
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2.

001-es BibID:BIBFORM070079
Első szerző:Tartally András (biológus)
Cím:First data on the host ant usage of large blue from the Carpathian basin / András Tartally, János Pál Tóth, Alex Váradi, Judit Bereczki
Dátum:2017
ISSN:0361-6525
Megjegyzések:Supplementary material: http://dx.doi.org/10.13102/sociobiology.v64i1.1206.s1572 (http://periodicos.uefs.br/index.php/sociobiology/rt/suppFileMetadata/1206/0/1572)
The protected Maculinea arion is an obligate myrmecophilous butterfly (Lepidoptera, Lycaenidae). Fourth instar larvae and pupae develop in Myrmica (Hymenoptera: Formicidae) ant nests. Host ant specificity varies geographically, and knowledge of the local host ant species is important to understand the biogeography and evolution of this species, and vital for its conservation. Here we report the first data on the host ant usage of M. arion in the Carpathian Basin, one prepupal caterpillar from a Myrmica specioides Bondroit, 1918 and one pupa from a M. scabrinodis Nylander, 1846 nest. Myrmica specioides is a new host ant species of M. arion. It is important to collect further data on the host ant usage of M. arion, despite the difficulties of data collection.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Social parasitism
Maculinea arion
Phengaris
Myrmica specioides
Myrmica scabrinodis
Hungary
Megjelenés:Sociobiology 64 : 1 (2017), p. 122-124. -
További szerzők:Tóth János Pál (1981-) Váradi Alex (1991-) (biológus) Bereczki Judit (1979-) (biológus)
Pályázati támogatás:Marie Curie Intra European Fellowship
Egyéb
'InDifferAnt'
Marie Curie Career Integration Grant
FP7
'AntLab'
EVK2-CT-2001-00126
Egyéb
"MacMan" RTD project
OTKA-109223
OTKA
OTKA-84071
OTKA
János Bolyai Scholarship of the Hungarian Academy of Sciences
MTA
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3.

001-es BibID:BIBFORM068782
Első szerző:Tóth János Pál
Cím:Mito-nuclear discordance helps to reveal the phylogeographic patterns of Melitaea ornata (Lepidoptera: Nymphalidae) / János P. Tóth, Zoltán Varga, Rudi Verovnik, Niklas Wahlberg, Alex Váradi, Judit Bereczki
Dátum:2017
ISSN:0024-4066
Megjegyzések:Periodical changes of glacial and interglacial conditions have influenced the distribution of most living organisms and shape the separation of different genetic lineages significantly. We investigated the phylogeography of a nymphalid butterfly Melitaea ornata. Our main aim was to explore the existence, the origin, and the variability of different genetic lineages based on a multilevel approach. M. ornata and its close relatives (with a focus on M. phoebe) from the Palearctic were analysed based on five gene regions (COI, EF-1a, MDH, RPS5, and wingless) using Bayesian methods to infer the phylogeographic history. The DNA-based analyses have been complemented with species distribution modelling (SDM) and Wolbachia screening. The Bayesian inference analysis showed mito-nuclear discordance in M. ornata, which is split into an eastern and a western clade. Based on mitochondrial DNA , the western clade of M. ornata clusters together with M. phoebe, while the eastern clade is well-separated. In contrast to this, the combined nuDNA-based analysis revealed that M. ornata forms a monophyletic group which is clearly separated from M. phoebe. The timing of divergence analyses suggest that the split between M. ornata and M. phoebe is about 6 million years old based on both the COI and the concatenated nuclear genes. SDM predicted considerably larger area shifts for M. phoebe than for M. ornata. LGM refugia were predicted for both species to the Mediterranean peninsulas in Europe and several Middle-East and Asian localities. The prevalence of Wolbachia infection was 88.9% in M. phoebe and only 7% in M. ornata. Our results clearly indicate a lack of ongoing hybridization between M. phoebe and M. ornata, but argue for an ancient hybridization event in the Apennine Peninsula which strongly influenced the observed split between the two clades of M. ornata.
Tárgyszavak:Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
hybridization
Last Glacial Maximum
species distribution modelling
Wolbachia
Megjelenés:Biological Journal Of The Linnean Society. - 121 : 2 (2017), p. 267-281. -
További szerzők:Varga Zoltán Verovnik, Rudi Wahlberg, Niklas Váradi Alex (1991-) (biológus) Bereczki Judit (1979-) (biológus)
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