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XB-ART-9829
Mech Dev January 1, 2001; 100 (1): 137-40.

The vegetally localized mRNA fatvg is associated with the germ plasm in the early embryo and is later expressed in the fat body.

Chan AP , Kloc M , Bilinski S , Etkin LD .


Abstract
Vegetally localized RNAs in Xenopus oocytes have been implicated in the establishment of the primary germ layers and the formation and development of the primordial germ cells. fatvg mRNA is localized through the late pathway to the vegetal cortex. Like Vg1 mRNA fatvg is distributed throughout the entire cortex; however, unlike Vg1 there is a small fraction of the fatvg mRNA that is associated with the mitochondrial cloud. In early cleavage stage embryos, fatvg mRNA is associated with the germ plasm located at the tips of the vegetal blastomeres of the embryo. While several localized RNAs that follow the Message Transport Organizer (METRO) pathway have been found in the germ plasm in embryos, fatvg is a late pathway RNA that is associated with the germ plasm. In tadpoles, fatvg mRNA shows a novel pattern of expression which is distinct from the germ cell lineage and is detected at the dorso-anterior margin of the endodermal mass along the midline in two clusters of cells. fatvg mRNA expression is also detected later in the developing fat bodies, the major adipose tissues of the frog.

PubMed ID: 11118900
Article link: Mech Dev
Grant support: [+]

Species referenced: Xenopus laevis
Genes referenced: gdf1 pgat plin2


Article Images: [+] show captions