Browsing by Author "Laumer, Christopher"
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Inclusive Taxon Sampling Suggests a Single, Stepwise Origin of Ectolecithality in Platyhelminthes
Laumer, Christopher Edward; Giribet, Gonzalo (Wiley-Blackwell, 2014)Ectolecithality is a form of oogenesis unique within Metazoa but common in Platyhelminthes, in which almost yolkless oocytes and tightly associated yolk cells are deposited together in egg capsules. Despite profound impacts ... -
Isolated branches in the phylogeny of Platyhelminthes
Laumer, Christopher E. (2015-03-06)This dissertation examines the early phylogenetic divergences of the phylum Platyhelminthes using molecular sequence data, with an emphasis on the placement and evolutionary significance of several enigmatic and largely ... -
New Insights into the Phylogeny, Systematics and DNA Barcoding of Nemertea
Kvist, Sebastian; Laumer, Christopher Edward; Junoy, Juan; Giribet, Gonzalo (CSIRO Publishing, 2014)Although some clades of ribbon worms (phylum Nemertea) are consistently recovered with high support in molecular phylogenies, the placement and inter-relationships of some taxa have proven problematic. Herein, we performed ... -
Nuclear genomic signals of the ‘microturbellarian’ roots of platyhelminth evolutionary innovation
Laumer, Christopher E; Hejnol, Andreas; Giribet, Gonzalo (eLife Sciences Publications, Ltd, 2015)Flatworms number among the most diverse invertebrate phyla and represent the most biomedically significant branch of the major bilaterian clade Spiralia, but to date, deep evolutionary relationships within this group have ...