Blar i Bergen Open Research Archive på forfatter "Gasiorowski, Ludwik"
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Brachiopod and mollusc biomineralisation is a conserved process that was lost in the phoronid–bryozoan stem lineage
Vikberg Wernström, Joel; Gasiorowski, Ludwik; Hejnol, Andreas Helmut (Journal article; Peer reviewed, 2022-09-19)Background: Brachiopods and molluscs are lophotrochozoans with hard external shells which are often believed to have evolved convergently. While palaeontological data indicate that both groups are descended from biomineralising ... -
The developmental basis for the evolution of new morphologies in Spiralia
Gasiorowski, Ludwik (Doctoral thesis, 2020-11-20)Spiralia is a clade of bilaterally symmetrical animals, which display an extreme diversity of divergent body plans accompanied by the presence of multiple subclades- specific morphological and developmental characters. ... -
Hox gene expression during development of the phoronid Phoronopsis harmeri
Gasiorowski, Ludwik; Hejnol, Andreas H. (Journal article; Peer reviewed, 2020)Background: Phoronida is a small group of marine worm-like suspension feeders, which together with brachiopods and bryozoans form the clade Lophophorata. Although their development is well studied on the morphological ... -
Hox gene expression in postmetamorphic juveniles of the brachiopod Terebratalia transversa
Gasiorowski, Ludwik; Hejnol, Andreas (Journal article; Peer reviewed, 2019-01-08)Background: Hox genes encode a family of homeodomain containing transcription factors that are clustered together on chromosomes of many Bilateria. Some bilaterian lineages express these genes during embryogenesis in spatial ... -
Molecular and morphological analysis of the developing nemertean brain indicates convergent evolution of complex brains in Spiralia
Gasiorowski, Ludwik; Børve, Aina; Cherneva, Irina A; Orus Alcalde, Andrea; Hejnol, Andreas (Journal article; Peer reviewed, 2021)Background The brain anatomy in the clade Spiralia can vary from simple, commissural brains (e.g., gastrotrichs, rotifers) to rather complex, partitioned structures (e.g., in cephalopods and annelids). How often and in ... -
Molecular evidence for a single origin of ultrafiltration-based excretory organs
Gasiorowski, Ludwik; Andrikou, Carmen; Bump, Paul; Lowe, Christopher J.; Janssen, Ralf; Budd, Graham E.; Hejnol, Andreas (Journal article; Peer reviewed, 2021)Excretion is an essential physiological process, carried out by all living organisms, regardless of their size or complexity.1, 2, 3 Both protostomes (e.g., flies and flatworms) and deuterostomes (e.g., humans and sea ... -
Morphology of the nervous system of monogonont rotifer Epiphanes senta with a focus on sexual dimorphism between feeding females and dwarf males
Gasiorowski, Ludwik; Furu, Anlaug; Hejnol, Andreas (Peer reviewed; Journal article, 2019-08-07)Background: Monogononta is a large clade of rotifers comprised of diverse morphological forms found in a wide range of ecological habitats. Most monogonont species display cyclical parthenogenesis, where generations of ...