Genes with spiralian-specific protein motifs are expressed in spiralian ciliary bands
نویسندگان
چکیده
منابع مشابه
Homology of ciliary bands in Spiralian Trochophores.
A number of hypotheses have been presented regarding the origins of the metazoans and, more specifically, the Bilateria. Using various phylogenetic analyses, characteristics have been mapped on phylogenetic trees to infer ancestral body plans and life history strategies of those ancestors. Many arguments on the evolution of the Bilateria are based on the presumed homology of certain characteris...
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At least five animal phyla exhibit spiralian development, which is characterized by striking similarities in the geometry of the early cleavage pattern and the fate map of the blastula, along with similarities in larval morphology. Recent advances in reconstructing the phylogeny of spiralians and their relatives suggest that the common ancestor of a large clade of protostome phyla known as the ...
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Gastrulation is a critical stage of metazoan development during which endodermal and mesodermal tissues are internalized, and morphogenesis transforms the early embryo into each animal's unique body-plan. While gastrulation has been studied extensively in classic model systems such as flies, worms, and vertebrates, less is known about gastrulation at a mechanistic level in other taxa. Surprisin...
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The advent of numerical methods for analysing phylogenetic relationships, along with the study of morphology and molecular data, has driven our understanding of animal relationships for the past three decades. Within the protostome branch of the animal tree of life, these data have sufficed to establish its two main side branches, the moulting Ecdysozoa and the non-moulting Lophotrochozoa. In t...
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Elucidating the origin of germ cells in embryos and larvae is often obscured by the fact that the typical germ cell markers vasa, nanos and piwi are not exclusively expressed in primordial germ cells (PGCs), but are also commonly found in undifferentiated somatic tissues and stem cells as part of an evolutionary conserved 'germline multipotency program' (Juliano et al., 2010). Hidden in the cro...
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ژورنال
عنوان ژورنال: Nature Communications
سال: 2020
ISSN: 2041-1723
DOI: 10.1038/s41467-020-17780-7