Chinese researchers have reconstructed an ultra pan-genome map of rice by analyzing the nearly complete genomes of 13 representative wild rice species and integrating four previously published genomes. The study identified a total of 101,723 gene families of rice, discovering 63,881 new gene families in cultivated rice, thereby expanding the available rice genes by 1.7 times. The research also found 7,048 resistance genes in the rice genus, with a significant number of these genes found in clusters in cultivated rice and mainly as singles in wild rice. The study, published in Nature Communications, can greatly expand the gene pool for rice genetic improvement and support research on rice evolution and domestication.