Public DNA Barcode Sequences for Bark and Ambrosia Beetles with Cryptic Structure Analysis

Public GenBank archives provided 8,899 COI sequences from over 1,000 species of bark and ambrosia beetles (Curculionidae). After quality filtering, 3,650 sequences representing 75 species were analyzed by Yiyi Dong in 2026, revealing pervasive cryptic genetic structure. The dataset includes case studies of specific species like Xyleborus ferrugineus and Tomicus piniperda to illustrate evolutionary mechanisms.

Use Cases

• Identifying candidate species complexes based on genetic divergence patterns described in the analysis.
• Clarifying the identities of globally invasive species using the documented taxonomic name–sequence mismatches.
• Developing scalable data-mining frameworks for uncurated genetic repositories as demonstrated in the study.
• Comparing evolutionary mechanisms like deep geographical splits versus shallow population structure using the provided case studies.

Strengths

• Includes 3,650 quality-filtered COI sequences from a starting pool of 8,899.
• Analyzes 75 species, with 100% showing multiple barcode partitions under ASAP analysis.
• Provides specific case studies (e.g., Xyleborus ferrugineus, Tomicus piniperda) to illustrate findings.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset is small (256.0 KB), indicating limited scope beyond the specific genetic sequences and analysis presented.

Provenance

Source

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Collection Method

Data-mined from publicly available GenBank COI sequences, followed by quality filtering and analysis.

Time Range

Coverage corresponds to sequences available in GenBank at the time of download; specific dates are not provided.

Freshness

Last updated 2026-04-24 20:15:32; freshness should be verified.

Geography

Global, as indicated by case studies referencing Asian, European, and North American lineages.