Genetic structure of pelagic and littoral cichlid fishes from Lake Victoria.
The approximately 700 species of cichlids found in Lake Victoria in East Africa are thought to have evolved over a short period of time, and they represent one of the largest known examples of adaptive radiation. To understand the processes that are driving this spectacular radiation, we must determ...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2013-01-01
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| Series: | PLoS ONE |
| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24040175/?tool=EBI |
| _version_ | 1818405386245373952 |
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| author | Miyuki Takeda Junko Kusumi Shinji Mizoiri Mitsuto Aibara Semvua Isa Mzighani Tetsu Sato Yohey Terai Norihiro Okada Hidenori Tachida |
| author_facet | Miyuki Takeda Junko Kusumi Shinji Mizoiri Mitsuto Aibara Semvua Isa Mzighani Tetsu Sato Yohey Terai Norihiro Okada Hidenori Tachida |
| author_sort | Miyuki Takeda |
| collection | DOAJ |
| description | The approximately 700 species of cichlids found in Lake Victoria in East Africa are thought to have evolved over a short period of time, and they represent one of the largest known examples of adaptive radiation. To understand the processes that are driving this spectacular radiation, we must determine the present genetic structure of these species and elucidate how this structure relates to the ecological conditions that caused their adaptation. We analyzed the genetic structure of two pelagic and seven littoral species sampled from the southeast area of Lake Victoria using sequences from the mtDNA control region and 12 microsatellite loci as markers. Using a Bayesian model-based clustering method to analyze the microsatellite data, we separated these nine species into four groups: one group composed of pelagic species and another three groups composed mainly of rocky-shore species. Furthermore, we found significant levels of genetic variation between species within each group at both marker loci using analysis of molecular variance (AMOVA), although the nine species often shared mtDNA haplotypes. We also found significant levels of genetic variation between populations within species. These results suggest that initial groupings, some of which appear to have been related to habitat differences, as well as divergence between species within groups took place among the cichlid species of Lake Victoria. |
| first_indexed | 2024-12-14T08:55:13Z |
| format | Article |
| id | doaj.art-1d95a66f79c842a8b8b86c5bf5546f88 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-14T08:55:13Z |
| publishDate | 2013-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-1d95a66f79c842a8b8b86c5bf5546f882022-12-21T23:08:57ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-0189e7408810.1371/journal.pone.0074088Genetic structure of pelagic and littoral cichlid fishes from Lake Victoria.Miyuki TakedaJunko KusumiShinji MizoiriMitsuto AibaraSemvua Isa MzighaniTetsu SatoYohey TeraiNorihiro OkadaHidenori TachidaThe approximately 700 species of cichlids found in Lake Victoria in East Africa are thought to have evolved over a short period of time, and they represent one of the largest known examples of adaptive radiation. To understand the processes that are driving this spectacular radiation, we must determine the present genetic structure of these species and elucidate how this structure relates to the ecological conditions that caused their adaptation. We analyzed the genetic structure of two pelagic and seven littoral species sampled from the southeast area of Lake Victoria using sequences from the mtDNA control region and 12 microsatellite loci as markers. Using a Bayesian model-based clustering method to analyze the microsatellite data, we separated these nine species into four groups: one group composed of pelagic species and another three groups composed mainly of rocky-shore species. Furthermore, we found significant levels of genetic variation between species within each group at both marker loci using analysis of molecular variance (AMOVA), although the nine species often shared mtDNA haplotypes. We also found significant levels of genetic variation between populations within species. These results suggest that initial groupings, some of which appear to have been related to habitat differences, as well as divergence between species within groups took place among the cichlid species of Lake Victoria.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24040175/?tool=EBI |
| spellingShingle | Miyuki Takeda Junko Kusumi Shinji Mizoiri Mitsuto Aibara Semvua Isa Mzighani Tetsu Sato Yohey Terai Norihiro Okada Hidenori Tachida Genetic structure of pelagic and littoral cichlid fishes from Lake Victoria. PLoS ONE |
| title | Genetic structure of pelagic and littoral cichlid fishes from Lake Victoria. |
| title_full | Genetic structure of pelagic and littoral cichlid fishes from Lake Victoria. |
| title_fullStr | Genetic structure of pelagic and littoral cichlid fishes from Lake Victoria. |
| title_full_unstemmed | Genetic structure of pelagic and littoral cichlid fishes from Lake Victoria. |
| title_short | Genetic structure of pelagic and littoral cichlid fishes from Lake Victoria. |
| title_sort | genetic structure of pelagic and littoral cichlid fishes from lake victoria |
| url | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24040175/?tool=EBI |
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