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Genomic evidence uncovers inbreeding and supports translocations in rescuing the genetic diversity of a landlocked seal population
Fragmentation of isolated populations increases the risk of inbreeding and loss of genetic diversity. The endemic Saimaa ringed seal ( Pusa hispida saimensis ) is one of the most endangered pinnipeds in the world with a population of only ~ 400 individuals. The current genetic diversity of this subs...
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Published in: | Conservation genetics 2023-04, Vol.24 (2), p.155-165 |
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Main Authors: | , , , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Fragmentation of isolated populations increases the risk of inbreeding and loss of genetic diversity. The endemic Saimaa ringed seal (
Pusa hispida saimensis
) is one of the most endangered pinnipeds in the world with a population of only ~ 400 individuals. The current genetic diversity of this subspecies, isolated in Lake Saimaa in Finland for ca. 1000 generations, is alarmingly low. We performed whole-genome sequencing on Saimaa ringed seals (N = 30) and analyzed the level of homozygosity and genetic composition across the individual genomes. Our results show that the Saimaa ringed seal population has a high number of runs of homozygosity (RoH) compared with the neighboring Baltic ringed seal (
Pusa hispida botnica
) reference population (
p
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ISSN: | 1566-0621 1572-9737 |
DOI: | 10.1007/s10592-022-01497-9 |