PSIA: Plant Self-Incompatibility Atlas

PSIA curates and integrates genomic resources, S gene annotations, and comparative genomic analyses for plant self-incompatibility species.

Key Features:

• Genomic Resources: Compiles over 500 genome assemblies from 469 self-incompatibility species.
• S Gene Curation: Manually identifies and rigorously curates 3700 S genes using known S genes as queries.
• S-locus Information: Provides detailed S-locus information from assembled genomes of self-incompatibility species.
• BLAST Searches: Supports sequence similarity searches for S gene analysis.
• Comparative Genomics: Facilitates comparative genomic studies of S-loci to explore the origin, loss, and regain of self-incompatibility.
• Phylogenetic Relationships: Integrates phylogenetic data for self-incompatibility species.
• Molecular Mechanisms: Documents molecular mechanisms underlying self-incompatibility systems.

Scientific Applications:

• Crop Breeding: Supports genetic diversity assessment, hybrid seed production, and yield optimization in angiosperm crops.
• Inbreeding Prevention Research: Enables study of the genetic mechanism that prevents inbreeding and promotes outcrossing in angiosperms.
• S-locus Evolution: Facilitates exploration of dynamic processes underlying the origin, loss, and regain of self-incompatibility.
• S Gene Discovery: Aids identification and characterization of pistil and pollen S-determinant genes in eudicots.

Methodology:

Manual identification and rigorous curation of S genes using known S genes as queries; comparative genomic analysis of assembled genomes.