Whole Genome Data of Barombi Mbo Crater Lake Cichlids

Whole genome sequences from Barombi Mbo crater lake cichlids and neighboring riverine populations, used to investigate fine-scale patterns of introgression. The analysis found evidence of secondary gene flow scattered across less than 0.24% of the genome. It was authored by Emilie J. Richards and published in 2020.

Use Cases

• Analyze fine-scale patterns of introgression across whole genomes to identify specific genomic regions with secondary gene flow.
• Investigate the differential assortment of ancestral polymorphisms found in riverine populations between sympatric sister species.
• Search for candidate genes for adaptive introgression within the identified introgressed genomic regions.
• Assess the functional diversity within introgressed regions to evaluate their potential role in ecological, sexual, and morphological diversity.

Strengths

• Provides whole genome data, enabling fine-scale analysis of introgression patterns.
• Focuses on a celebrated example of sympatric speciation in Barombi Mbo crater lake cichlids.
• Quantifies secondary gene flow as affecting less than 0.24% of the genome.

Limitations

• The functional role of introgressed regions in species diversification is not clearly established.
• The dataset does not provide obvious candidate genes for adaptive introgression.
• The specific file formats, data size, and structure (e.g., columns) are unknown.

Provenance

Source

Dryad

Collection Method

Whole genome sequencing of Barombi Mbo crater lake cichlids and neighboring riverine cichlid populations.

Freshness

Last updated in 2020.

Geography

Barombi Mbo crater lake and neighboring riverine environments.