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Wyświetlanie 1-2 z 2
Tytuł:
Detection of two major cytochrome b lineages in pike-perch, Sander lucioperca, and first data on their distribution in European populations
Autorzy:
Kohlmann, K.
Louati, M.
Kersten, P.
Bahri-Sfar, L.
Poulet, N.
Ben Hassine, O. K.
Powiązania:
https://bibliotekanauki.pl/articles/363206.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
cytochrome b
PCR-RFLP
pike perch
Sander lucioperca
cytochrom b
sandacz
Opis:
Despite of the growing interest in pike-perch for aquaculture and its economic importance in fisheries, knowledge on the population structure and phylogeography of the species is still limited. We report the discovery of two major cytochrome b lineages and describe a simple method for their detection based on PCR amplification followed by restriction digestion with Alw26I. Screening of 708 individuals showed that haplotype A was fixed or dominating in Central and East European countries, whereas haplotype B was mainly found in several French populations and Tunisian pike-perch introduced from Europe. Sequencing the complete cytochrome b cds of 17 representative individuals revealed that haplotypes A and B differed by five substitutions but also showed further differentiation of both haplotypes due to an additional substitution in a single haplotype A and B individual from France, respectively. Five partial pike-perch cytochrome b cds available from NCBI GenBank could also clearly be assigned to one or the other of the two major lineages. Therefore, this new mtDNA marker might be considered as suitable not only for studies on population structure and phylogeography of pikeperch but also to trace its introduction history and to assess the genetic composition of aquaculture brood stocks.
Źródło:
Environmental Biotechnology; 2013, 9, 1; 1-5
1734-4964
Pojawia się w:
Environmental Biotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of nine species-specific microsatellite loci to characterize three pike-perch (Sander lucioperca) populations from the Aral Sea basin in Uzbekistan
Autorzy:
Khurshut, E.
Kohlmann, K.
Powiązania:
https://bibliotekanauki.pl/articles/363116.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
sandacz
markery mikrosatelitarne
heterozygotyczność
zróżnicowanie genetyczne
pike-perch
microsatellite markers
heterozygosities
genetic differentiation
Opis:
The pike-perch is one of the main commercial fish species in Uzbekistan. Historically, it inhabited the Aral Sea and deltas of inflowing rivers (Amu-Darya and Syr-Darya). At the beginning of the 1960s it was introduced into water bodies of the middle Amu-Darya and Syr-Darya from the Ural River. The present study was aimed to evaluate the current genetic status of wild pike-perch populations from different water bodies using nine recently isolated species-specific microsatellite markers. The three examined Uzbek pike-perch populations expressed significantly higher average numbers of alleles per locus (5.56 to 14.22) than three year-classes of a German wild population (3.11 to 3.78) included for comparison. On the other hand, average observed and expected heterozygosities were not significantly different in both regions (0.743 and 0.760 in Uzbek pike-perch; 0.576 and 0.471 in German pike-perch). After sequential Bonferroni corrections all Uzbek populations were found to be in Hardy-Weinberg equilibrium. Genetic differentiation between all populations as estimated by FST values was statistically significant. Pike-perch from Amu-Darya River delta and Tudakul reservoir were less differentiated from each other probably due to gene flow between them (both water bodies are connected) whereas the more distinct Syr-Darya River population showed indication for introgression with non-native individuals stocked in that region. Since stocking is widely practiced to satisfy the growing demand of pike-perch fisheries in Uzbekistan, fish seed for such activities should be obtained from local, genetically undisturbed populations such as the Amu-Darya River delta population.
Źródło:
Environmental Biotechnology; 2009, 5, 1; 3-10
1734-4964
Pojawia się w:
Environmental Biotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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