Genetic diversity and relatedness in different generations of the Siberian crane (Grus leucogeranus Pallas) captive population

Autor: G. V. Nosachenko, T. A. Kashentseva, E. A. Mudrik, K. A. Postelnykh, D. V. Politov
Rok vydání: 2014
Předmět:
Zdroj: Russian Journal of Genetics. 50:1192-1199
ISSN: 1608-3369
1022-7954
DOI: 10.1134/s1022795414100093
Popis: Eight variable microsatellite loci were analyzed in terms of studying the genetic structure of dif� ferent generations of a captive population of a rare endemic Russian species, the Siberian crane (Grus leucogeranus Pallas). It was shown that the founding population of natural origin (15 birds) is characterized by high genetic diversity (N A = 6.625, H O = 0.767, H E = 0.731) and a lack of relatedness (R = -0.079). In the total sample of descendents of the founders (122 individuals from generations F1, F1/F2, F1/F3, F2, F2/F3), this characteristic level of genetic variation is being maintained; however, we observed a decrease in allelic richness in some generations (F1/F2, F1/F3, F2). We found a low level of relatedness in the sample of descen� dents of the founders (F1, F1/F2, F1/F3), while the relatedness was maximal (R = 0.302) in the descendents of the breeders of the first generation. A small sample of breeders related to each other of generations F 1 and F2 (eight birds) does not represent the entire gene pool of the founders of the Siberian Crane captive popula� tion. In view of this, we discuss the need to form a new genetically heterogeneous generation of breeders that would also include Siberian Cranes from the almost extinct Western Siberian population.
Databáze: OpenAIRE
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