ITS2 Sequence Alignment Subset for Haptophyte Phylogenetics

Louisa Ridder published a subset of ITS2 sequence alignments on figshare in March 2026. The dataset contains 224 ITS2 sequences from haptophytes, a group of microalgae, compiled for a phylogenetic study. It is a 13.0 KB TXT file intended for use in sequence-structure phylogenetic analysis.

Use Cases

• Distinguishing closely related haptophyte species based on ITS2 sequence variability mentioned in the description
• Testing alignment methods that incorporate secondary structure information to reduce phylogenetic artifacts
• Comparing phylogenetic resolution between ITS2 and 18S rRNA data as discussed in the study
• Analyzing conserved and variable features in ITS2 secondary structures across taxa

Strengths

• Dataset contains 224 ITS2 sequences
• Integrates secondary structure information for alignment, a method described in the study
• License is CC-BY-4.0, allowing open reuse

Limitations

• Row count is unknown, which may limit suitability assessment
• Column-level documentation is absent; field semantics must be inferred after download
• ITS2 data presented alignment challenges due to high sequence variability and limited taxon representation, as noted in the description

Provenance

Source

figshare

Collection Method

Compiled from available sequences for a phylogenetic study, with taxon sampling reducing over 40,000 available 18S sequences to 396 representatives.

Freshness

Last updated 2026-03-19 17:23:06