Salix dunnii Genome sequencing and assembly. Salix dunnii

Here we used Illumina short reads, Oxford Nanopore Technologies (ONT) long reads, and Hi-C reads to assemble the first chromosome-scale genome of a female willow tree (Salix dunnii), and to predict genes using transcriptome sequences and available databases. The final genome sequence of 328 Mb in total was assembled in 29 contigs, and includes 31,501 genes. We inferred a male heterogametic sex determining factor on chromosome 7, suggesting that, unlike the female heterogamety of most species in the genus Salix, male heterogamety evolved in the subgenus Salix.