Chinese researchers have completed sequencing the genome of the wheat A
subgenome, and generated a high-quality draft of its chromosomes. The
researchers generated a molecular map of seven chromosomes of the wheat A
subgenome and identified 41,507 protein-coding genes, providing high-quality
genomic information and a new perspective for studying genetic variation in
wheat.

Cultivated wheat contains three genomes: A, B, and D. They are huge and
complex, about 40 times larger than rice genomes. More than 85 percent of
the genomic DNA of wheat is repetitive, making the study of its genome
sequencing difficult. The researchers believe the sequencing will help
improve competitiveness in the wheat industry, boost the quality and
production efficiency, and safeguard food security.

[english.cas.cn]