Genetic variation of European grayling (Thymallus thymallus) populations in the Western Balkans
ID Marić, Saša (Author), ID Kalamujić, Belma (Author), ID Snoj, Aleš (Author), ID Razpet, Andrej (Author), ID Lukić-Bilela, Lada (Author), ID Pojskić, Naris (Author), ID Sušnik Bajec, Simona (Author)

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In order to elucidate genetic composition of European grayling (Thymallus thymallus) populations in the Western Balkans, the partial mitochondrial DNA (mtDNA) control region was sequenced and 12 microsatellite loci genotyped in 14 populations originating from tributaries of the Adriatic and Danube drainages. Eleven mtDNA haplotypes were found, one confined to the Adriatic clade, one to the Alpine group and the rest to the "Balkan" grayling phylogenetic clade. Haplotypes from the Balkan clade were confined to the Danube drainage and constituted two groups:northern group with haplotypes found in the Slovenian part of the Danube drainage, and southern group, consisting from Bosnia-Herzegovina and Montenegro. Substantial genetic distance between northern and southern groups of haplotypes (0.75-1.8%) and well supported divisions within the northern group indicate very structured grayling population within the studied Danube basin that most probably did not evolve due to variance but rather as a consequence of multiple conolization waves that might have occured during the Pleistocene. Furtermore, genetic distance of - 4% between Adriatic and Danube populations' haplotypes, suggest that their separation occured in mid-Pliocene. These findings implya complex colonization pattern of the Western Balkans drainages. Microsatellite data also confirm high genetic diversity in Western Balkans populations of grayling (on average 7.5 alleles per microsatellite locus and Hexp 0.58). Limited stocking activities were detected based on microsatellites and mtDNA data. Regarding current knowledge of grayling phylogeography appropriate management strategies were proposed to preserve unique, autchthonous grayling populations in Western Balkan.

Keywords:molekularna genetika, ribe, lipan, Thymallus thymallus, genetska variabilnost, zahodni Balkan
Work type:Not categorized
Typology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Number of pages:Str. 225-237
Numbering:Vol. 691, no. 1
PID:20.500.12556/RUL-36552 This link opens in a new window
ISSN on article:0018-8158
DOI:10.1007/s10750-012-1076-2 This link opens in a new window
COBISS.SI-ID:3027080 This link opens in a new window
Publication date in RUL:10.07.2015
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Shortened title:Hydrobiologia
COBISS.SI-ID:6141191 This link opens in a new window

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