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Genetic variability of the Metridia lucens complex (Copepoda) in the Southern Oceanстатья
- Авторы: Stupnikova A.N., Molodtsova T.N., Mugue N., Neretina T.V.
- Журнал: Journal of Marine Systems, Elsevier Science Publishing Company, Inc., Amsterdam
- Год издания: 2013
- Аннотация: Analysis of the fragment of the mtDNA gene СО1 has revealed two genetically distinct groups of the Metridia lucens complex in the South part of the Atlantic. While the intragroup polymorphism was less than 1%, the intergroup difference was about 9.5%. These two groups may be considered as representing two cryptic species within the M. lucens complex: M. lucens North and M. lucens South. These forms are found mainly to the North and to the South of the South Polar Front. The results are confirmed by an analysis of the nuclear rDNA ITS1-5.8S-ITS2 fragment. No hybrids between the two forms were detected. M. lucens North inhabits the waters > 4 °C that allow us to discuss the temperature as putative limiting factor for the distribution.
- Добавил в систему: Неретина Татьяна Владимировна