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001-es BibID:	BIBFORM099297
035-os BibID:	(WoS)000600545400003 (Scopus)85098704435
Első szerző:	Takács Attila (biológus, botanikus)
Cím:	Evidence of hybridization between Galatella villosa and G. linosyris, and a taxonomic reappraisal of the hybrid G. xsubvillosa / Takács A., Zsólyomi T., Molnár V. A., Jordán S., Sennikov A. N., Vincze O., Sramkó G.
Dátum:	2020
ISSN:	0032-7786
Megjegyzések:	At the westernmost distribution of the steppe herbaceous plant, Galatella villosa, in Hungary, Serbia and Ukraine, we recently observed intermediate specimens between this species and its close relative, G. linosyris. We were able to demonstrate the hybrid origin of these individuals by sequencing the biparentally inherited nuclear ribosomal internal transcribed spacer (nrITS) region and checking additive polymorphism in the hybrids. In addition, examination of the maternally inherited plastid regions (trnH-psbA and trnL-trnF intergenic spacers) revealed that G. villosa is likely to be the maternal parent in the Hungarian and Ukrainian populations and G. linosyris in the Serbian population. The intermediate forms produced only sterile seeds. The alleged hybrid between the above two species has already been described as G. xsubvillosa based on a very brief diagnosis. Still, the analysis of the morphological characters using linear discriminant analyses clearly separated the holotype of G. xsubvillosa from individuals of G. linosyris x G. villosa. The latter appeared to be morphologically intermediate between populations of G. villosa and G. linosyris. Contrary to the originally stated hybrid origin of the type plants of G. xsubvillosa, morphological evidence indicates the involvement of G. divaricata not G. linosyris. The hybrid G. linosyris x G. villosa is thus described here, as a new nothospecies G. xfeketegaborii. This study highlights the power of easily available molecular phylogenetic tools for demonstrating the hybrid origin of plants and illustrates how additive polymorphism can be distinguished from other types of intraindividual polymorphism in nuclear DNA sequences.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Astereae additive polymorphic site (APS) bidirectional hybridization Compositae; hybrid sterility multivariate morphometrics nothospecies
Megjelenés:	Preslia. - 92 : 4 (2020), p. 375-390. -
További szerzők:	Zsólyomi Tamás Molnár V. Attila (1969-) (biológus, botanikus) Jordán Sándor (1992-) Sennikov, Alexander N. Vincze Orsolya (1988-) (biológus) Sramkó Gábor (1981-) (biológus)
Pályázati támogatás:	K108992 NKFI-OTKA K132573 NKFI-OTKA
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM047882
Első szerző:	Takács Attila (biológus, botanikus)
Cím:	Key environmental variables affecting the distribution of Elatine hungarica in the Pannonian Basin / Attila Takács, András Schmotzer, Gusztáv Jakab, Tamás Deli, Attila Mesterházy, Gergely Király, Balázs András Lukács, Boglárka Balázs, Ranko Perić, Pavol Eliáš jun., Gábor Sramkó, Jácint Tökölyi, Attila Molnár V.
Dátum:	2013
ISSN:	0032-7786
Megjegyzések:	Elatina hungarica Moesz is a small wetland ephemerophyte that occurs and is classified as extinct, data deficient or a very rare and endangered taxon in most countries in eastern and central Europe. Based on literature and herbarium data, supplemented by 160 field records collected between 1998 and 2011, we present the currently known distribution of this species in the Pannonian Basin, which mostly but not exclusively includes Hungary. Within the Pannonian Basin this species is distributed throughout Hungary, with sporadic occurences in Romania, Sebia and Slovakia. The temporal distribution of floristic records is very uneven. This species was recorded only in 27 years during the last 213 years (1798-2011). When examining presence/absence data for most of the 20th century, we found a significant correlation between the number of records of this species in a given year and two key, but not independent, environmental variables: rainfall and the extent of the area inundated in the same year. In the more intensively documented period between 1998 and 2010, there is only a significant correelation between the numbers of records of this species and the extent of flooding, which is because there is a delay in the effect of an increase in rainfall. The peak occurence of records in the 1940s and 1950s is associated with extensive rice production in Hungary. Today, most records are for agricultural fields that are subject to flooding and becoming temporary wetlands. The comparison of recent and past distributions of E. hungarica reveals a consistent and marked regional difference; whereas this species is not rare along the Tisza river and its tributaries, it is markedly scattered in similar habitats near the Danube.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban ephemerophyte flooding Hungary inland water Isoëto-Nanojuncetea Elatinaceae mapping rainfall rice weeds Romania Serbia Slovakia temporary ponds
Megjelenés:	Preslia. - 85 (2013), p. 193-207. -
További szerzők:	Schmotzer András Jakab Gusztáv (1975- ) (paleontológus) Deli Tamás Mesterházy Attila Király Gergely Lukács Balázs András (1979-) (ökológus) Balázs Boglárka (1985-) (geográfus) Perić, Ranko Eliáš, Pavol (jun.) Sramkó Gábor (1981-) (biológus) Tökölyi Jácint (1984-) (biológus) Molnár V. Attila (1969-) (biológus, botanikus)
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat Szerző által megadott URL
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