Genetic and morphological divergences between wild and captive-bred populations of Salmo trutta abanticus
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Dosyalar
Tarih
2017
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Salmo trutta abanticus is a non-anadromous trout species native to Lake Abant and Seven Lakes in Turkey. A restocking programme by captive breeding was initiated in 1999 to support S. trutta abanticus population. Reared 2-year-old juveniles from randomly caught wild parental individuals in Macka breeding farm were introduced into Lake Abant. We aimed to compare genetic and morphological divergences between wild-and captive-bred populations using seven microsatellite loci and geometric morphometric measurements. A significant genetic and morphological divergences were detected between all population in F-st and canonical variate analysis based on geometric morphometric with 10 homolog landmark. Eighty-six microsatellites alleles were recorded across loci. Number of private alleles, observed alleles and observed heterozygosity are statistically significant higher in Macka captive-bred population than Lake Abant and Seven Lakes populations. Of 42 tests, three departures from Hardy-Weinberg equilibrium were detected in all populations after Bonferroni correction. Two pairs of loci (Ssa85 - Str73 and Str73-Str543) in Macka, one pairs of loci (Ssa85-Str73) in Abant and two pairs of loci (Ssa85-Str60 and Str73-Str543) in Seven Lakes populations show linkage disequilibrium. Population structure analysed with Structure software showed three genetic groups (Delta K = 3) in our studied populations. Relatedness estimates show higher mean relatedness values (r = 0.220 +/- 0.230) for Macka captive-breed population than wild populations of Abant Lake and Seven Lakes (r = 0.140 +/- 0.210 and r = 0.170 +/- 0.200 respectively).
Açıklama
Anahtar Kelimeler
Captive-Bred, Genetic and Morphological Divergences, Geometric Morphometrics, Microsatellite, Salmo Trutta Abanticus
Kaynak
Aquaculture Research
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
48
Sayı
11
