Evolution: Directives from Sea Anemone Hox Genes
نویسندگان
چکیده
منابع مشابه
Sea urchin Hox genes: insights into the ancestral Hox cluster.
We describe the Hox cluster in the radially symmetric sea urchin and compare our findings to what is known from clusters in bilaterally symmetric animals. Several Hox genes from the direct-developing sea urchin Heliocidaris erythrogramma are described. CHEF gel analysis shows that the Hox genes are clustered on a < or = 300 kilobase (kb) fragment of DNA, and only a single cluster is present, as...
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BACKGROUND Hox genes were critical to many morphological innovations of bilaterian animals. However, early Hox evolution remains obscure. Phylogenetic, developmental, and genomic analyses on the cnidarian sea anemone Nematostella vectensis challenge recent claims that the Hox code is a bilaterian invention and that no "true" Hox genes exist in the phylum Cnidaria. METHODOLOGY/PRINCIPAL FINDIN...
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Gene families, which encode toxins, are found in many poisonous animals, yet there is limited understanding of their evolution at the nucleotide level. The release of the genome draft sequence for the sea anemone Nematostella vectensis enabled a comprehensive study of a gene family whose neurotoxin products affect voltage-gated sodium channels. All gene family members are clustered in a highly ...
متن کاملGenomics. Sea anemone provides a new view of animal evolution.
C R E D IT : A D A M R E IT Z E L Genome sequencers have just jumped down to a lower branch on the tree of life, and the view has given them a new perspective on animal evolution. The newly decoded DNA of a few-centimeter-tall sea anemone looks surprisingly similar to our own, a team led by Nicholas Putnam and Daniel Rokhsar from the U.S. Department of Energy Joint Genome Institute in Walnut Cr...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2018
ISSN: 0960-9822
DOI: 10.1016/j.cub.2018.09.040