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Research Advances in the Breeding Study of Sunflower Resistance to Orobanche

Guo Shuchun;Miao Hongmei;Li Suping;Yu Haifeng;Nie Hui;Mu Yingnan;Wen Xinyu;Liang Chen;Zhang Haibin;Shao Ying;Henan Academy of Agricultural Sciences;Inner Mongolia Academy of Agricultural& Animal Husbandry Sciences;Datan Township People's Government of Chahar Right Middle Banner,Ulanqab,Inner Mongolia;  
Sunflower is one of the four major oil crops in the world. Orobanche is a kind of parasitic plant that seriously damages the growth of sunflower and the occurrence area of Orobanche is increasing year by year all over the world that causes serious harm to the development of the sunflower industry. Breeding resistant varieties of Orobanche is the most effective way to control Orobanche and it is also the primary goal of breeders. Breeders identified resistance genes through traditional breeding methods, cultivated a series of varieties of sunflower resistant to Orobanche, and widely planted in the main planting areas of sunflower all over the world which effectively alleviated the impact of Orobanche on the industry. However, with the emergence and spread of more virulent physiological races of Orobanche, it is urgent to cultivate new sunflower varieties with stronger resistance. This paper reviewed the structure and distribution of a new and highly toxic physiological race of Orobanche, analyzed MAS strategy to improve the resistance of sunflower, summarized the sequence information of resistance genes, and analyzed and prospected the research and development of resistance breeding of sunflower to Orobanche.
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