From Nov 16 to 19, Dr. Arend van Peer from Wageningen University & Research (WUR) in the Netherlands, visited the Institute of Agricultural Resources and Regional Planning (IARRP) of the Chinese Academy of Agricultural Sciences. He was invited by the Innovation Team of Edible Mushroom Genetics, Breeding and Cultivation. During his visit, Dr. van Peer delivered an academic lecture titled "Genetic mapping and nuclear interactions of an incompatibility response in the button mushroom Agaricus bisporus." The session was chaired by Dr. Gao Wei and attended by more than 20 researchers and graduate students from IARRP and the Beijing Academy of Agriculture and Forestry Sciences.

In his presentation, Dr. van Peer clarified the genetic mechanisms underlying somatic incompatibility in Agaricus bisporus. By integrating genetic linkage mapping with analyses of nuclear interactions, he identified the specific genetic loci and interaction pathways responsible for triggering the incompatibility response, providing new targets for mushroom strain improvement. Following the lecture, he engaged in in-depth discussions with researchers and students, answering key questions related to mushroom genetics and breeding, and offering constructive suggestions for several graduate students' ongoing experiments.

Looking ahead, collaborative research will continue under the framework of the China–Netherlands Joint Laboratory for Edible Fungi Research, jointly established by IARRP and the Plant Research Institute of Wageningen University. Future cooperation will focus on topics such as lignocellulose degradation mechanisms in edible fungi and genetic improvement of sporeless oyster mushrooms. Dr. van Peer's visit provided new research perspectives and laid a solid foundation for a long-term and stable partnership between the two sides.