A5032099519- Genetic diversity and population structure
- Fish Ecology and Management Studies
- Animal Behavior and Reproduction
- Fish Biology and Ecology Studies
- Chromosomal and Genetic Variations
- Wildlife Ecology and Conservation
- Bat Biology and Ecology Studies
- Fish biology, ecology, and behavior
University of Antwerp
2021-2024
Institute of Natural Sciences
2021-2022
Abstract Chromosomal inversions contribute to adaptive speciation by linking co-adapted alleles. Querying 1,375 genomes of the species-rich Malawi cichlid fish radiation, we discovered five large segregating in benthic subradiation that each suppress recombination over more than half a chromosome. Two were transferred from deepwater pelagic Diplotaxodon via admixture, while others established early deep clade. Introgression haplotypes lineages inside and outside radiation coincided with...
Abstract Fish is an important source of animal protein for many people living around Lake Malawi. The evaluation population structure and genetic diversity can yield useful information management conservation fish species but complicated in Malawi by the close relatedness recent cichlid adaptive radiation. In this study, we analysed whole-genome sequencing data “true utaka”, a group cichlids previously common fisheries, that has faced strong decline due to overfishing. Our analysis 223...
An increasing number of genomic studies are showing that genetic introgression between closely related species is surprisingly common across the tree life, thus making description biodiversity and understanding process speciation complex challenging. The adaptive radiation cichlid fishes in Lake Malawi, with hybrid origins recent cases introgression, provides an important model system to study evolutionary implications introgression. However, many potential sources into have not yet been...
Cichlid radiations often harbour closely related species with overlapping niches and distribution ranges. Such sometimes hybridise in nature, which raises the question how they can coexist. This also holds for Tanganyika mouthbrooders Ophthalmotilapia ventralis O. nasuta. Earlier studies found indications of asymmetrical hybridisation females accepting males nasuta, but not other way around. We hypothesised that this was due to differences capacity recognition. Given higher propensity...
A bstract Cichlid radiations often harbour closely related species with overlapping niches and distribution ranges. Such sometimes hybridise in nature, which raises the question how can they coexist. This also holds for Tanganyika mouthbrooders Ophthalmotilapia ventralis O. nasuta . Earlier studies found indications of asymmetrical hybridisation females accepting males , but not other way around. We hypothesised that this was due to differences capacity recognition. Given higher propensity...