Assaying the potential of twenty-one legume plants in Medicago truncatula and M. sativa for candidate model plants for investigation the interactions with Heterodera glycines

• Published in: Journal of Integrative Agriculture Vol. 15; no. 3; pp. 702 - 704
• Main Authors: KONG, Ling-an, WU, Du-qing, HUANG, Wen-kun, PENG, Huan, HE, Wen-ting, PENG, De-liang
• Format: Journal Article
• Language: English
• Published: Science Press 01.03.2016; Elsevier
• Subjects: alfalfa; female index; life cycle; pathosystem; soybean cyst nematode; soybean cyst nematode alfalfa life cycle female index pathosystem; 大豆孢囊线虫; 大豆胞囊线虫; 植物病害系统; 模式植物; 测定; 相互作用; 紫花苜蓿; 豆科植物
• ISSN: 2095-3119; 2352-3425
• DOI: 10.1016/S2095-3119(15)61156-X

Soybean cyst nematode Heterodera glycines is one of the most serious soil-borne pathogens in soybean production. However, the researches were limited in China due to lack of an effective pathosystem. In this study, we screened 21 legume Medicago plants in both Medicago truncatula and Medicago sativa to obtain candidate model plants for establishing a new pathosystem for legume-H. glycines interactions. The nematode infection of tested plants was assayed with Race 3 and 4 respectively, which were two dominant H. glycines inbred races in China soybean producing areas. The results showed that the model legume plant M. truncatula A17 failed to allow Race 3 of H. glycines to complete its life cycle, in contrast, it provided the Race 4 population to form several cyst nematodes, however, the female index（FI） value was approximately 1.6. Three M. sativa cultivars, including Xunlu, Aergangjin and Junren, provided either Race 3 or 4 of H. glycines to develop into mature cysts with their FI value below 5 as well. Our results demonstrated that legume plants in both M. truncatula and M. sativa were not likely to be a model plant for H. glycines because of an extreme high resistance.