| Autor: |
Tarja Sundell, Juhana I Kammonen, Ella Mustanoja, Vincent Biard, Mervi Kunnasranta, Marja Niemi, Milaja Nykänen, Tommi Nyman, Jukka U Palo, Mia Valtonen, Lars Paulin, Jukka Jernvall, Petri Auvinen |
| Rok vydání: |
2022 |
| DOI: |
10.21203/rs.3.rs-1283456/v1 |
| Popis: |
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. 1,000 generations, is alarmingly low. The population is further divided into semi-isolated subpopulations in the labyrinthine landscape of the lake, which exposes the population to deleterious genomic effects. 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 |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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