Unidirectional response to bidirectional selection on body size. I. Phenotypic, life histo

A 6-generation laboratory experiment on wild-caught medaka fish measures the asymmetric evolutionary response to opposite harvest regimes. The dataset likely contains phenotypic, life-history, and endocrine trait measurements from fish subjected to selection for large, small, or random body sizes. This research from Sorbonne Université investigates how trait evolvability depends on the direction of anthropogenic selection.

Use Cases

• Modeling the genetic correlation between body size and life-history traits based on the described bidirectional selection experiment.
• Analyzing the endocrine response to selection, such as pituitary hormone gene expression levels for growth and reproduction.
• Investigating asymmetry in trait evolvability based on the described differential response to selection for large versus small body size.
• Forecasting population response to anthropogenic change using the detailed knowledge of trait evolutionary potential described.

Strengths

• Data is derived from a controlled 6-generation laboratory experiment, allowing for direct measurement of evolutionary response.
• The study measures correlated responses across multiple trait categories: phenotypic, life-history, and endocrine.
• Selection regimes mimic realistic opposite harvest scenarios (against large or small body size), enhancing ecological relevance.

Limitations

• Row count and column-level documentation are unknown, which limits suitability assessment and requires manual inspection after download.
• The dataset is specific to medaka fish (Oryzias latipes), which may limit generalizability to other species.
• Last update date is unknown; freshness unverified.

Provenance

Source

Sorbonne Université

Collection Method

Laboratory experiment over 6 generations with bidirectional size-dependent selection on wild-caught medaka fish.

Time Range

Time range of the 6-generation experiment is unspecified.

Freshness

Last updated date is unknown.

Geography

Source population geography for the wild-caught medaka fish is unspecified.