“…Among the resistance genes in plants that have been cloned and characterized, 61% of them belong to NBS-LRR gene (Shao et al, 2016;Kourelis and van der Hoorn, 2018;Xing et al, 2018). The accumulation of mutations in the NBS-LRR gene can increase the complexity of the NBS-LRR gene clusters and can generate new resistance types by recombining or rearranging with each other, such as gene duplication, unequal exchange, chromosomal abnormal recombination, gene conversion (Michelmore and Meyers, 1998;Meyers et al, 2003;Nagy and Bennetzen, 2008;Marone et al, 2013;Lestari et al, 2017;Lv et al, 2017). The resistance mechanism in the NBS-LRR gene cluster region is complicated.…”