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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
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat
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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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