Naslov
Evolution of Bryozoans via Recolonisation of Freshwater Ecosystems

Autori
Koletić, Nikola ; Novosel, Maja ; Kević, Nives ; Franjević, Damjan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts of the 12th Croatian Biological Congress / Klobučar, Göran ; Kopjar, Nevenka ; Gligora Udovič, Marija ; Lukša, Žaklin ; Jelić, Dušan - Zagreb : Hrvatsko biološko društvo, 2015, 56-57

Skup
12th CROATIAN BIOLOGICAL CONGRESS with International Participation

Mjesto i datum
Sveti Martin na Muri, Hrvatska, 18.09.2015. - 23.09.2015

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Domaća recenzija

Ključne riječi
COI; Gymnolaemata; ITS2; Phylactolaemata; rRNA genes

Sažetak
Bryozoans are aquatic invertebrates that form large colonies by asexual budding. Each individual within a colony works as a separate zooid and is genetically identical to each other individual within the same colony. Most freshwater species of bryozoans belong to the Phylactolaemata class, while several species that tolerate brackish water belong to the Gymnolaemata class. Bryozoan samples were collected in the rivers of Adriatic and Danube basin and in the wetland areas in the continental part of Croatia. Freshwater and brackish taxons of bryozoans were genetically analyzed for the purpose of creating phylogenetic relationships between freshwater and brackish taxons of the Phylactolaemata and Gymnolaemata classes and determining the role of brackish species in colonizing freshwater and marine ecosystems. Phylogenetic relationships inferred on the genes for 18S rRNA, 28S rRNA, COI and ITS2 region confirmed Phylactolaemata bryozoans as radix bryozoan group. Comparative analysis of existing knowledge about the phylogeny of bryozoans and the expansion of known evolutionary hypotheses is proposed with the model of settlement of marine and freshwater ecosystems by the bryozoans group during their evolutionary past. Brackish bryozoan taxons represent a link for ecological‐phylogenetic hypothesis. Comparison of brackish bryozoan species Lophopus crystallinus and Conopeum seurati confirmed a dual colonization of freshwater ecosystems throughout the evolution of this group of animals.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA