Microsatellite support for active inbreeding in a cichlid fish.
In wild animal populations, the degree of inbreeding differs between species and within species between populations. Because mating with kin often results in inbreeding depression, observed inbreeding is usually regarded to be caused by limited outbreeding opportunities due to demographic factors li...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2011-01-01
|
| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC3184091?pdf=render |
| _version_ | 1818623996264972288 |
|---|---|
| author | Kathrin Langen Julia Schwarzer Harald Kullmann Theo C M Bakker Timo Thünken |
| author_facet | Kathrin Langen Julia Schwarzer Harald Kullmann Theo C M Bakker Timo Thünken |
| author_sort | Kathrin Langen |
| collection | DOAJ |
| description | In wild animal populations, the degree of inbreeding differs between species and within species between populations. Because mating with kin often results in inbreeding depression, observed inbreeding is usually regarded to be caused by limited outbreeding opportunities due to demographic factors like small population size or population substructuring. However, theory predicts inclusive benefits from mating with kin, and thus part of the observed variation in inbreeding might be due to active inbreeding preferences. Although some recent studies indeed report kin mating preferences, the evidence is still highly ambiguous. Here, we investigate inbreeding in a natural population of the West African cichlid fish Pelvicachromis taeniatus which showed clear kin mating preferences in standardized laboratory experiments but no inbreeding depression. The presented microsatellite analysis reveals that the natural population has, in comparison to two reference populations, a reduced allelic diversity (A = 3) resulting in a low heterozygosity (H(o) = 0.167) pointing to a highly inbred population. Furthermore, we found a significant heterozygote deficit not only at population (F(is) = 0.116) but also at subpopulation level (F(is) = 0.081) suggesting that inbreeding is not only a by-product of population substructuring but possibly a consequence of behavioral kin preferences. |
| first_indexed | 2024-12-16T18:49:56Z |
| format | Article |
| id | doaj.art-5cb6135026eb47e383b1c2771ad05742 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-16T18:49:56Z |
| publishDate | 2011-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-5cb6135026eb47e383b1c2771ad057422022-12-21T22:20:44ZengPublic Library of Science (PLoS)PLoS ONE1932-62032011-01-0169e2468910.1371/journal.pone.0024689Microsatellite support for active inbreeding in a cichlid fish.Kathrin LangenJulia SchwarzerHarald KullmannTheo C M BakkerTimo ThünkenIn wild animal populations, the degree of inbreeding differs between species and within species between populations. Because mating with kin often results in inbreeding depression, observed inbreeding is usually regarded to be caused by limited outbreeding opportunities due to demographic factors like small population size or population substructuring. However, theory predicts inclusive benefits from mating with kin, and thus part of the observed variation in inbreeding might be due to active inbreeding preferences. Although some recent studies indeed report kin mating preferences, the evidence is still highly ambiguous. Here, we investigate inbreeding in a natural population of the West African cichlid fish Pelvicachromis taeniatus which showed clear kin mating preferences in standardized laboratory experiments but no inbreeding depression. The presented microsatellite analysis reveals that the natural population has, in comparison to two reference populations, a reduced allelic diversity (A = 3) resulting in a low heterozygosity (H(o) = 0.167) pointing to a highly inbred population. Furthermore, we found a significant heterozygote deficit not only at population (F(is) = 0.116) but also at subpopulation level (F(is) = 0.081) suggesting that inbreeding is not only a by-product of population substructuring but possibly a consequence of behavioral kin preferences.http://europepmc.org/articles/PMC3184091?pdf=render |
| spellingShingle | Kathrin Langen Julia Schwarzer Harald Kullmann Theo C M Bakker Timo Thünken Microsatellite support for active inbreeding in a cichlid fish. PLoS ONE |
| title | Microsatellite support for active inbreeding in a cichlid fish. |
| title_full | Microsatellite support for active inbreeding in a cichlid fish. |
| title_fullStr | Microsatellite support for active inbreeding in a cichlid fish. |
| title_full_unstemmed | Microsatellite support for active inbreeding in a cichlid fish. |
| title_short | Microsatellite support for active inbreeding in a cichlid fish. |
| title_sort | microsatellite support for active inbreeding in a cichlid fish |
| url | http://europepmc.org/articles/PMC3184091?pdf=render |
| work_keys_str_mv | AT kathrinlangen microsatellitesupportforactiveinbreedinginacichlidfish AT juliaschwarzer microsatellitesupportforactiveinbreedinginacichlidfish AT haraldkullmann microsatellitesupportforactiveinbreedinginacichlidfish AT theocmbakker microsatellitesupportforactiveinbreedinginacichlidfish AT timothunken microsatellitesupportforactiveinbreedinginacichlidfish |