Posterior regeneration in Isodiametra pulchra (Acoela, Acoelomorpha)
نویسندگان
چکیده
منابع مشابه
To Be or Not to Be a Flatworm: The Acoel Controversy
Since first described, acoels were considered members of the flatworms (Platyhelminthes). However, no clear synapomorphies among the three large flatworm taxa -- the Catenulida, the Acoelomorpha and the Rhabditophora -- have been characterized to date. Molecular phylogenies, on the other hand, commonly positioned acoels separate from other flatworms. Accordingly, our own multi-locus phylogeneti...
متن کاملA cultivable acoel species from the Mediterranean, Aphanostoma pisae sp. nov. (Acoela, Acoelomorpha).
Aphanostoma pisae sp. nov. is an interstitial acoel found at the coast of the Liguric Sea in Pisa (Tuscany, Italy). It belongs to the large family Isodiametridae, characterised by a male copulatory organ with a cylindrical shape and non-anastomising longitudinal muscle fibers. It is the first recognised species of Aphanostoma in the Mediterranean and it can occur in great abundance at its type ...
متن کاملMesodermal Gene Expression in the Acoel Isodiametra pulchra Indicates a Low Number of Mesodermal Cell Types and the Endomesodermal Origin of the Gonads
Acoelomorphs are bilaterally symmetric small marine worms that lack a coelom and possess a digestive system with a single opening. Two alternative phylogenetic positions of this group within the animal tree are currently debated. In one view, Acoelomorpha is the sister group to all remaining Bilateria and as such, is a morphologically simple stepping stone in bilaterian evolution. In the other,...
متن کاملSuccessful Indirect Regeneration of Arnebia pulchra (Roemer and Schultes) as Medicinal Plant
Arnebia pulchra (Willd. ex Roem. & Schult.) Edm. is an endangered, perennial member of Boraginaceae family. Spectrophotometric and LC-Mass analysis confirmed the existence of shikalkin derivatives in its root skin and polyphenolic compounds in the inner part of its root. Studies on the regeneration of A. pulchra from its callus resulted in successful callus induction in the root explants excise...
متن کاملAssessing the root of bilaterian animals with scalable phylogenomic methods.
A clear picture of animal relationships is a prerequisite to understand how the morphological and ecological diversity of animals evolved over time. Among others, the placement of the acoelomorph flatworms, Acoela and Nemertodermatida, has fundamental implications for the origin and evolution of various animal organ systems. Their position, however, has been inconsistent in phylogenetic studies...
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ژورنال
عنوان ژورنال: Frontiers in Zoology
سال: 2013
ISSN: 1742-9994
DOI: 10.1186/1742-9994-10-64