Description of the karyotype of Geophagus cf. proximus (Perciformes, Cichlidae, Geophaginae)
نویسندگان
چکیده
منابع مشابه
Metazoan parasites of Geophagus brasiliensis (Perciformes: Cichlidae) in Patos Lagoon, extreme south of Brazil.
This study has evaluated the parasitic fauna of 79 pearl cichlids (Geophagus brasiliensis) from the estuary of Patos Lagoon (31° 57' S and 52° 06' W), Rio Grande do Sul, Brazil, during the months of May and June in 2011 and 2012. All the hosts analyzed were infected with at least one species of parasite. A total of eleven metazoa were identified in 459 specimens collected. The trematode Austrod...
متن کاملthe description of verb phrase of dezfuli dialect
شهرستان دزفول در بخش شمالغربی خوزستان با مساحت 4700 کیلومتر مربع و جمعیت 380416 (1375 ) واقع شده است . دزفولیها به گویش دزفولی تکلم می کنند ، گویشی که جز دسته جنوبی زبانهای ایرانی است . در این پایان نامه نویسنده قصد دارد گروه فعلی گویش دزفولی را توصیف کند. همچنین به بحث در باره ریشه فعلی و ستاک های مختلف ، ساخت سببی ، فعل های منظم و نامنظم ، ویژگیهای فعل مانند زمان ، وجه و نمود می پردازد در فصل...
Soluble malate dehydrogenase of Geophagus brasiliensis (Cichlidae, Perciformes): Isolated isoforms and kinetics properties
Kinetic properties and thermal stabilities of Geophagus brasiliensis skeletal muscle unfractionated malate dehydrogenase (MDH, EC 1.1.1.37) and its isolated isoforms were analyzed to examine a possible sMDH-B* locus duplication in a fixation process influenced by genetic drift. Two optimal pHs were detected: 7.5 for AB1 unfractionated muscle phenotype and its B1 isoform, and 8.0 for AB1B2 unfra...
متن کاملCytogenetic characterization of Geophagus brasiliensis and two species of Gymnogeophagus (Cichlidae: Geophaginae) from Guaiba Lake, RS, Brazil.
The karyotypes of three species of fish of the Cichlidae family from the Forqueta river and several locations in Guaiba lake/RS (Brazil) were analyzed. All species presented 2n=48, while Gymnogeophagus gymnogenys showed two karyotypic formulae: 4m+44st-a with FN=52 and 6m+42st-a with FN=54. Gymnogeophagus labiatus presented 4m+4sm+40st-a and FN=56 and Geophagus brasiliensis 4sm+44st-a and FN=52...
متن کاملPhylogeny and biogeography of cichlid fishes (Teleostei: Perciformes: Cichlidae)
Family level molecular phylogenetic analyses of cichlid fishes have generally suffered from a limited number of characters and ⁄or poor taxonomic sampling across one or more major geographic assemblage, and therefore have not provided a robust test of early intrafamilial diversification. Herein we use both nuclear and mitochondrial nucleotide characters and direct optimization to reconstruct a ...
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ژورنال
عنوان ژورنال: Acta Scientiarum. Biological Sciences
سال: 2013
ISSN: 1807-863X,1679-9283
DOI: 10.4025/actascibiolsci.v35i1.11711