What question did this study set out to answer?

This research aims to understand the genetic basis for the endangered status of the Blue-crowned Laughingthrush.

March 22, 2026Open Access

Chromosome-scale Genome Assembly of the Critically Endangered Blue-crowned Laughingthrush (Pterorhinus courtoisi, Leiothrichidae)

Puntos clave

This research aims to understand the genetic basis for the endangered status of the Blue-crowned Laughingthrush.
Constructed a chromosome-level reference genome using various sequencing technologies.
Integrated Illumina short-read, PacBio long-read, and Hi-C chromatin interaction data.
Achieved genome assembly of 1.255 Gb with sequences anchored onto pseudochromosomes.
Final genome assembly included 39 pseudochromosomes with 92.32% of sequences anchored.
Predicted a total of 16,807 protein-coding genes, with 92.7% functionally annotated.
High-quality genome resource established for conservation studies of the species.

Resumen

The Blue-crowned Laughingthrush (Pterorhinus courtoisi) is a critically endangered species and listed as National First-class Protected Wildlife in China, with a small population size and highly restricted geographic distribution in Jiangxi Province. However, the genetic mechanisms underlying its endangered status remain unclear. In this study, we constructed a chromosome-level reference genome by integrating Illumina short-read, PacBio long-read, and Hi-C chromatin interaction data. The final assembled genome spans 1.255 Gb, with 1.158 Gb (92.32%) of the sequences anchored onto 39 pseudochromosomes. A total of 16,807 protein-coding genes were predicted, among which 15,574 genes (92.7%) were functionally annotated. This high-quality genome assembly provides a valuable genomic resource for future genetic studies and conservation efforts for the Blue-crowned Laughingthrush.

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