Hybridization Analysis in Liolaemus Lizards with 127 Specimens

South American lizard genus Liolaemus data includes molecular sequences from 127 individuals across 14 genes. The dataset supports a study testing hybridization hypotheses between the L. boulengeri and L. rothi species complexes. It contains results from a coalescent model-based analysis and phenotypic measurements.

Use Cases

• Apply the novel XLC statistic to quantify individual-level gene tree discordance from 14 gene sequences.
• Test coalescent models for hybridization using molecular data from 127 individuals across 12 nuclear and 2 mitochondrial genes.
• Analyze phenotypic intermediacy in hybrid descendants relative to parental species like L. rothi and L. tehuelche.
• Investigate paraphyly in mitochondrial gene trees within the Liolaemus boulengeri and rothi complexes.

Strengths

• Includes molecular data from 127 individual lizards, providing a solid sample for population genetic analysis.
• Features multi-locus data with 12 nuclear and 2 mitochondrial genes for robust phylogenetic inference.
• Applies a novel quantitative method (XLC statistic) to assess gene tree discordance per individual.
• Data underpins a published study with a clear, model-based hypothesis for interspecific hybridization.

Limitations

• Sample size of 127 individuals may limit statistical power for detecting rare hybridization events or fine-scale population structure.
• Geographic scope is specific to South American Liolaemus, limiting generalizability to other taxa or regions.
• Phenotypic data is described as intermediate but sample details for morphological traits are not specified in the input.

Provenance

Source

Dryad digital repository.

Collection Method

Molecular data collection and coalescent model-based analysis for testing hybridization hypotheses.

Freshness

Last updated in 2020.

Geography

South America, focusing on the Liolaemus lizard genus.