Genetic Divergence in the Ascidian Pyura Praeputialis (= Pyura Stolonifera) (heller, 1878) from Mainland Australia and Tasmania
نویسنده
چکیده
Astorga, M.P., Guif>ez, R. & Castilla, J. C. 2009 ( 1 J ( ~ (Heller, 1878) frommainlandAustraliaandTasmania. 143(2): 101 -104. ISSN 00804703. Instituto de Acuicultura & CIEN Austral, Universidad Austral de Chile, Sede Puerto Montt, Casilla 1327, Puerto Montt, Chile Instituto de Investigaciones Oceanol6gicas, Facultad de Recursos del Mar, Universidad de Antofagasta, Chile (RG); Departamento de Facultad de Ciendas Biol6gicas, P. Universidad Cat6lica de Chile, Center for Advanced Studies in Ecology and Biodiversity (CASEB), Chile (JCC). *Author for correspondence. Email: [email protected]!
منابع مشابه
Recent introduction of the dominant tunicate, Pyura praeputialis (Urochordata, Pyuridae) to Antofagasta, Chile.
The large sessile tunicate Pyura stolonifera (Pleurogona: Stolibranchiata: Pyuridae), has been regarded as a complex taxon with disjointed distributions, including Australia (Pyura stolonifera praeputialis), South Africa (Pyura stolonifera stolonifera) and South America (Chile, Antofagasta: Pyura sp., the 'piure de Antofagasta'), and has been cited under at least five taxonomic combinations. Th...
متن کاملA revision of the Pyura stolonifera species complex (Tunicata, Ascidiacea), with a description of a new species from Australia
Pyura stolonifera is a large solitary ascidian found in Africa, Australasia and South America. The taxonomic status of different populations of this species is disputed, especially since there is evidence for several distinct morphological and genetic units that point towards the existence of multiple cryptic species. While some researchers still recognize P. stolonifera as a single species, ot...
متن کاملBio-foam enhances larval retention in a free-spawning marine tunicate.
Here we report a mechanism that reduces dispersal of early developing stages and larvae in a free-spawning intertidal and shallow subtidal tunicate, Pyura praeputialis (Heller 1878), in the Bay of Antofagasta, Chile. The spawning of gametes by the tunicate into the naturally turbulent aerated seawater decreases their surface tension and induces the formation of a bio-foam. Water collected from ...
متن کاملCorrection: Rocky Intertidal Zonation Pattern in Antofagasta, Chile: Invasive Species and Shellfish Gathering
BACKGROUND Biological invasions affecting rocky intertidal zonation patterns, yield information on species interactions. In the Bay of Antofagasta, northern Chile, the non-indigenous tunicate Pyura praeputialis, originally from Australia, has invaded (in the past century or so) and monopolized a major portion of the mid-intertidal rocky shore, displacing upshore the native mussel Perumytilus pu...
متن کاملA mono-sited transferrin from a representative deuterostome: the ascidian Pyura stolonifera (subphylum Urochordata).
An iron-binding protein has been found in the plasma of Pyura stolonifera. This protein has a molecular weight of about 41,000 +/- 2,000 and binds 1 mol iron/mol protein. The absorption maxima are lambda = 280 and lambda = 429 nm (E429/E280 = 0.044). Bicarbonate is bound concomitantly with high affinity and is necessary for optimal color formation at lambda = 429 nm. The protein showed a neglig...
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