Detecting a genetic bottleneck in Gilbert's Potoroo (Potorous gilbertii) (Marsupialia : Potoroidae), inferred from microsatellite and mitochondrial DNA sequence data

作者：Sinclair EA^*; Costello B; Courtenay JM; Crandall KA

来源：Conservation Genetics, 2002, 3(2): 191-196.

DOI：10.1023/A:1015228508714

• bottleneck
• effective population size
• microsatellites
• mtDNA
• Potorous gilbertii

Gilbert's Potoroo is Australia's most critically endangered marsupial, known from a single population in the Two Peoples Bay National Park in Western Australia. We present results from a study of genetic variation in microsatellite and mitochondrial DNA. Mean heterozygosity at five microsatellite loci was 49.3%, and the amount of mtDNA variation was extremely low (pi = 0.0004). There was evidence for a bottleneck in both sets of markers, and this was consistent with a demographic decline. Effective population size was estimated using two different models of mutation for microsatellites (N-e = 243 and 362). The results from this study highlight the concern for the long-term survival of this species.

• 出版日期2002