Karyological observations on Turbellaria Proseriata: karyometric analysis ofMonocelis fusca, M. lineata (Monocelididae) andParotoplana macrostyla (Otoplanidae)
نویسندگان
چکیده
منابع مشابه
Population structure of the Monocelis lineata (Proseriata, Monocelididae) species complex assessed by phylogenetic analysis of the mitochondrial Cytochrome c Oxidase subunit I (COI) gene
Monocelis lineata consists of a complex of sibling species, widespread in the Mediterranean and Atlantic Ocean. Previous genetic analysis placed in evidence at least four sibling species. Nevertheless, this research was not conclusive enough to fully resolve the complex or to infer the phylogeny/phylogeography of the group. We designed specific primers aiming at obtaining partial sequences of t...
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Kataplana celeretrix is described as a new species of proseriate flatworm belonging to the Otoplanidae. This species was found in low-tide-level surface sediments at two high-energy beach sites in North Carolina and is unique among described Otoplanidae in possessing post-pharyngeal germaria. In addition, we consider the intermediate taxonomic position that this new species occupies between Par...
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OBJECTIVES Nuclear characteristics of epithelial cells in nasal polyps were analyzed. PATIENTS AND METHODS The slides of 35 patients who underwent surgery for nasal polyposis and 18 slides of normal mucosa were examined. The specimens were stained with hematoxylin-eosin. Tissue sections were analyzed by a CCD camera and the Karyotype Program of Human Cytogenetics Nomenclature System on a Maci...
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Among the turbellarian flatworms reproduction is typically associated with a sexual process. However, in certain orders such as the Tricladida and Rhabdocoela asexual reproduction is also recognized.8 The purpose of this short paper is to report the discovery of asexual reproduction by what is probably a fission-like process in another order of Turbellaria, the Acoela. Asexual reproduction was ...
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As part of the Chandra GTO program we are monitoring and surveying M31 using the HRC and ACIS cameras. These observations have resolved the nuclear X-ray source into five separate sources, one of which is very soft and may (or may not!) be associated with the central super-massive black hole. In addition, the superb spatial resolution and low scattering of the Chandra telescope allows us to una...
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ژورنال
عنوان ژورنال: Helgoländer Meeresuntersuchungen
سال: 1984
ISSN: 0174-3597,1438-3888
DOI: 10.1007/bf01999963