Adzuki Breeding and Analysis of Genetic Elements of Virulence and Resistance in Brown Spot Disease Caused by Pseudomonas

小豆(Vigna Angularis)是加拿大种植的一种有价值的豆科植物，出口到亚洲，在亚洲主要用于生产制作甜面包和蛋糕的豆沙。红豆出口商，包括我们的合作伙伴Hensall地区合作社和他们的6,000名会员业主，有兴趣向这些市场提供优质的豆类，以获得最好的价格。日本市场上价格最高的豆子是大的，颜色是淡红色。安大略省小豆几乎是Erimo品种的独家品种，该品种具有理想的制酱成分，但种子小，暗红色。拟议工作的目标是：1)培育具有大而淡颜色的种子和优良的制酱质量的高产小豆品种；2)确定小豆对与褐斑病和大豆孢囊线虫感染相关的生物胁迫的遗传控制抗性。此外，还将探索将评估和开发的种质中的分子标记性状关联。对小豆褐斑病的研究将包括：建立鉴定抗病种质的筛选程序，鉴定从安大略省小豆作物上获得的病原菌(假单胞菌)菌株的变异，并开发小豆抗褐斑病的分子标记。因此，这项工作将为高质量品种开发提供独特的种质，并提供必要的工具，以提高培育适合加拿大生产的优质小豆品种的速度和精度，这些品种在国际市场上享有溢价。

Adzuki (Vigna angularis) is a valuable legume grown in Canada for export to Asia, where it is primarily used to produce bean paste for sweet buns and cakes. Adzuki bean exporters, including our partner, Hensall District Co-operative and their 6,000 member owneres, are interested in providing premium quality beans to these markets to obtain the best prices for them. The highest priced beans in Japanese markets are large and pale-red in colour. Ontario adzuki beans are almost exclusively of the variety Erimo, which has an ideal paste making composition, but has small, dark red seeds.The goals of the proposed work are to: 1) breed high-yielding adzuki varieties with large, pale-coloured seeds and excellent paste making qualities and 2) determine the genetics controlling resistance to biotic stress associated with Brown Spot and infection by soybean cyst nematodes in Adzuki. Additionally, molecular marker trait associations will be explored in the germplasm that will be evaluated and developed. The research in the project on Brown Spot in Adzuki will: develop a screening procedure to identify resistant germplasm, characterize variation in the pathogen (Pseudomonas) isolates obtained from Adzuki crops in Ontario, and develop molecular markers for resistance to Brown Spot in Adzuki. Therefore, the work will provide unique germplasm for high quality variety development and the tools needed to increase the speed and precision of breeding superior adzuki bean varieties suited for production in Canada, that command premium prices in international markets.