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Pyramiding disease resistance genes in elite winter wheat germplasm for Western Canada

查看全文 作　　者：[1]AndréLaroche;Michele [1]Frick;Robert [1]J.Graf;Jamie [1,2]Larsen;John [1]D.Laurie 高影响力作者 机构地区：[1]Agriculture and Agri-Food Canada,Lethbridge Research and Development Centre,Lethbridge,Alberta T1J 4B1,Canada;[2]Agriculture and Agri-Food Canada,Harrow Research and Development Centre,2585 County Road 20,Harrow,Ontario N0R 1G0,Canada高影响力机构 出　　处：《The Crop Journal》索引2019年第7卷第6期,共11页高影响力期刊 基　　金：Funding from the Agriculture and Agri-Food Canada Peer Review and Growing Forward programs,and Ducks Unlimited Canada is greatly appreciated 摘　　要：We report on pyramiding different disease resistance genes against fungal pathogens in Canadian winter wheat germplasm based on available DNA markers and gene sequences.Genetic resistance represents a safe, economical and ecological method for protecting plants, growers and the health of consumers. Major diseases of wheat on the Canadian Prairies are common bunt, rusts(leaf, stem and stripe) and Fusarium head blight. Over the years markers for resistance genes against these diseases have been identified and used by the international wheat community. We describe markers that we have used to pyramid different resistance genes and indicate their presence in Canadian winter wheat cultivars issued from the winter wheat breeding program at the Agriculture and Agri-Food Canada,Lethbridge Research and Development Centre, the only winter wheat breeding program in Western Canada actively delivering new varieties for all regions of the Canadian Prairies.The sources of resistance and identities of PCR primers and amplification conditions are indicated to enable the transfer and pyramiding of different resistance(R) genes to breeding lines. We conclude by reviewing new tools for identifying R genes in wheat and indicate how mutagenesis and gene editing can help future efforts to extend the protection offered by known R genes. 关 键 词：Bunt Gene PYRAMIDING Wheat rusts Marker-assisted selection TRITICUM AESTIVUM
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