Browsing Bergen Open Research Archive by Author "Vellutini, Bruno Cossermelli"

Now showing items 1-8 of 8

    • Cleavage modification did not alter blastomere fates during bryozoan evolution 

      Vellutini, Bruno Cossermelli; Martin Duran, Jose Maria; Hejnol, Andreas (Journal article; Peer reviewed, 2017-04-28)
      Background: Stereotypic cleavage patterns play a crucial role in cell fate determination by precisely positioning early embryonic blastomeres. Although misplaced cell divisions can alter blastomere fates and cause embryonic ...

    • Comparative development of spiralian larvae 

      Vellutini, Bruno Cossermelli (Doctoral thesis, 2016-03-04)
      Bryozoans and brachiopods are sessile, mostly marine animals, that use an elegant crown of tentacles for filter-feeding. They are related to molluscs, segmented worms and other animals in a outstandingly diverse group of ...

    • Conservative route to genome compaction in a miniature annelid 

      Martin-Duran, José M.; Vellutini, Bruno Cossermelli; Marletaz, Ferdinand; Cetrangolo, Viviana; Cvetesic, Nevena; Thiel, Daniel; Henriet, Simon; Grau-Bové, Xavier; Carrillo-Baltodano, Allan M.; Gu, Wenjia; Kerbl, Alexandra; Marquez, Yamile; Bekkouche, Nicolas; Chourrout, Daniel; Gómez-Skarmeta, José Luis; Irimia, Manuel; Lenhard, Boris; Worsaae, Katrine; Hejnol, Andreas (Journal article; Peer reviewed, 2021)
      The causes and consequences of genome reduction in animals are unclear because our understanding of this process mostly relies on lineages with often exceptionally high rates of evolution. Here, we decode the compact ...

    • Embryonic chirality and the evolution of spiralian left - right asymmetries 

      Martin Duran, Jose Maria; Vellutini, Bruno Cossermelli; Hejnol, Andreas (Journal article; Peer reviewed, 2016-12)
      The group Spiralia includes species with one of the most significant cases of left–right asymmetries in animals: the coiling of the shell of gastropod molluscs (snails). In this animal group, an early event of embryonic ...

    • Embryonic expression of priapulid Wnt genes 

      Hogvall, Mattias; Vellutini, Bruno Cossermelli; Martin-Duran, José M.; Hejnol, Andreas; Budd, Graham E.; Janssen, Ralf (Journal article; Peer reviewed, 2019-07)
      Posterior elongation of the developing embryo is a common feature of animal development. One group of genes that is involved in posterior elongation is represented by the Wnt genes, secreted glycoprotein ligands that signal ...

    • Evolution and development of the adelphophagic, intracapsular Schmidt's larva of the nemertean Lineus ruber 

      Martin Duran, Jose Maria; Vellutini, Bruno Cossermelli; Hejnol, Andreas (Journal article; Peer reviewed, 2015-09-28)
      Background: The life cycle of many animals includes a larval stage, which has diversified into an astonishing variety of ecological strategies. The Nemertea is a group of spiralians that exhibits a broad diversity of larval ...

    • Expression of segment polarity genes in brachiopods supports a non-segmental ancestral role of engrailed for bilaterians 

      Vellutini, Bruno Cossermelli; Hejnol, Andreas (Journal article; Peer reviewed, 2016-08-26)
      The diverse and complex developmental mechanisms of segmentation have been more thoroughly studied in arthropods, vertebrates and annelids—distantly related animals considered to be segmented. Far less is known about the ...

    • Increased taxon sampling reveals thousands of hidden orthologs in flatworms 

      Martin Duran, Jose Maria; Ryan, Joseph Francis; Vellutini, Bruno Cossermelli; Pang, Kevin Scott; Hejnol, Andreas (Journal article; Peer reviewed, 2017)
      Gains and losses shape the gene complement of animal lineages and are a fundamental aspect of genomic evolution. Acquiring a comprehensive view of the evolution of gene repertoires is limited by the intrinsic limitations ...