Pregled bibliografske jedinice broj: 1246063
PHYLOGEOGRAPHY AND TAXONOMY OF Dianthus sylvestris WULFEN s.l. ON THE BALKAN PENINSULA
PHYLOGEOGRAPHY AND TAXONOMY OF Dianthus sylvestris WULFEN s.l. ON THE BALKAN PENINSULA, 2022., doktorska disertacija, Prirodoslovno-matematički fakultet, Biološki odsjek, Zagreb, Hrvatska
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Naslov
PHYLOGEOGRAPHY AND TAXONOMY OF Dianthus sylvestris WULFEN s.l. ON THE BALKAN PENINSULA
Autori
Terlević, Ana
Vrsta, podvrsta i kategorija rada
Ocjenski radovi, doktorska disertacija
Fakultet
Prirodoslovno-matematički fakultet, Biološki odsjek
Mjesto
Zagreb, Hrvatska
Datum
21.12
Godina
2022
Stranica
40
Mentor
Rešetnik, Ivana ; Bogdanović, Sandro
Ključne riječi
morphometrics ; environmental niche analyses ; flow cytometry ; genetic variation ; cline ; glacial refugia
Sažetak
The Balkan Peninsula is one of the diversity centres for the morphologically highly variable and taxonomically inconsistently treated Dianthus sylvestris (Caryophyllaceae). In this thesis, an array of methods ranging from nomenclatural revision and morphometrics, following with phylogeographic methods (RADseq) and environmental niche analyses, to genome size estimates, were combined to explore the intraspecific relationships within Balkan populations of D. sylvestris, to discuss phylogeographic and historical processes that contributed to the observed genetic divergence patterns in this species, and to propose a sensible taxonomic solution. Patterns of genetic variation and species distribution models (SDM) suggested that D. sylvestris in the Balkan Peninsula survived the Pleistocene glaciations in two separate glacial refugia located along the eastern Adriatic coast. Two genetic groups with the split occurring around the Neretva River valley have been identified. These groups correspond to the two discerned morphological entities, the north-western and the south-eastern group of populations, distinct by the epicalyx scales shape, calyx teeth incision and petal denticulation. Migration analyses revealed relatively high rates of gene flow within each of the two groups, whereas there was almost no gene flow between them. The genetic differentiation did not support the current taxonomy, and the morphometric analyses revealed a continuous variability of quantitative morphological characters and an absence of clear-cut qualitative morphological differences among the subspecies. However, there was an obvious discontinuity in both morphological and genetic clines, therefore a taxonomic subspecies level was attributed to the two resulting groups, D. sylvestris subsp. sylvestris in the north and D. sylvestris subsp. bertisceus in the south. The thermophilous and earlier-flowering D. sylvestris subsp. tergestinus formed a separate evolutionary lineage, thus a new species-level treatment was proposed for this taxon.
Izvorni jezik
Engleski
POVEZANOST RADA
Projekti:
--UIP-2017-05-2882 - Filogeografija i evolucija triju ekološki divergentnih grupa amfi-jadranskih biljaka (AmphiAdriPlant) (Rešetnik, Ivana) ( CroRIS)