Phylogeny of subtribe Hieraciinae (Asteraceae) - a model example of contrasting evolutionary strategies in closely related lineages
| Name: | Phylogeny of subtribe Hieraciinae (Asteraceae) - a model example of contrasting evolutionary strategies in closely related lineages |
|---|---|
| Researchers: |
Zahradníček Jaroslav (member in research team) Caklová Petra (member in research team) Vít Petr (member in research team) Dočkalová Zuzana (member in research team) Trávníček Pavel (member in research team) Machač Jiří (member in research team) Krak Karol (member in research team) Krahulcová Anna (member in research team) Fehrer Judith (member in research team) Suda Jan (member in research team) |
| Provider: | Grantová agentura ČR |
| Number: | GAP506/10/1363 |
| Realization from: | 2010 |
| Realization to: | 2013 |
| Summary: | Evolutionary patterns in related lineages with contrasting ploidy and reproduction mode are crucial topics of contemporary biology. Our model system, subtribe Hieraciinae (Asteraceae), combines features that are unique in plants: two different kinds of apomixis and the presence of a sexual sister genus. A multigene phylogeny based on complete or (in apomictic groups) representative sampling will serve as a backbone for interpretations on 1) historical biogeography: localization of evolutionary and diversity centres of the subtribe (connections of Iberian and North African floras, Macaronesian colonization, migration routes between Eurasia and North America); 2) genome size: diversification and evolution, responsible mechanisms at the genome level (diversity and quantity of transposable elements), relation to ecogeographical and biological factors, adaptive role; 3) karyotype evolution: localization of transposable elements, especially in connection with the Avoidance of Meiosis Locus (LOA), and their potential influence on reproductive isolation and the origin of apomixis. |