我国大豆主产区大豆胞囊线虫群体分布及致病性分化研究  

Population Distribution and Pathogenicity Differentiation of Soybean Cyst Nematode in Main Soybean Production Areas of China

作　　者：宋美静[1] 朱晓峰[1] 王东[1] 王媛媛[1] 陈立杰[1] 刘晓宇[1] 段玉玺[1] 

机构地区：[1]沈阳农业大学植物保护学院/北方线虫研究所,辽宁沈阳110866

出　　处：《大豆科学》2016年第4期630-636,共7页Soybean Science

基　　金：农业部公益性行业科研专项(201503114);国家现代农业产业技术体系建设专项(CARS-04-PS13);教育部博士点基金(20112103110006);国家自然科学基金(31330063;31171569);辽宁省大豆胞囊线虫生理小种鉴定及新鉴别体系研究(L2014273)

摘　　要：为了明确我国大豆主产区大豆胞囊线虫群体的发生分布及致病性分化情况,同时也为我国大豆胞囊线虫防治及抗病育种工作提供依据,本研究在全国范围内开展大豆胞囊线虫种群监测工作,对2012-2014年国家大豆产业体系的29个大豆试验站所辖150个示范县进行大豆胞囊线虫的种群密度检测,并在国际统一的鉴别寄主上进行生理小种鉴定。明确了大豆胞囊线虫在我国20个省(市/自治区)发生分布,总检出率达69.4%。并对其中11个群体进行生理小种鉴定,共鉴定出生理小种5个,即1、2、3、4和14号生理小种。其中安徽宿州、甘肃镇原、内蒙古赤峰、陕西延安和宁夏银川的鉴定此前未见报道。2012-2014年我国大豆胞囊线虫病害的发生比较严重,平均胞囊量高达99个·L^(-1),我国大豆胞囊线虫致病性分化并无明显变化,鉴定结果中1、3和4号生理小种出现频率较高,为72.7%。Soybean cyst nematode population distribution and pathogenicity differentiation were studied in main soybean production areas of China, providing the basis for management soybean cyst nematode disease and breeding for resistance to SCN. SCN population density was detected at 150 demonstration counties of 29 comprehensive experimental stations in China, and identified the races by different hosts. The distribution of SCN has been clarified in 20 provinces （ municipalities/autonomous regions）, the total detection rate of SCN was 69.4%. And among 11 populations were identified races that had 5 races, race 1, race 2, race 3, race 4 and race 14. Wherein the identification results of Suzhou city of Anhui province, Zhenyuan County of Gansu province, Chifeng city of Mongolia, Yan＇ an city of Shanxi province, Yinchuan city of Ningxia Hui autonomous region had not been reported previously. Research indicated that SCN was serious disease at 2012 -2014 in China, average cyst numbers were 9. 9 cyst·L^-1, pathogenicity differentiation of SCN wash＇ t significant change, the 72. 7% identification of races were the race 1, race 3 and race 4.

关 键 词：大豆胞囊线虫 种群密度 生理小种 

分 类 号：S435.651[农业科学—农业昆虫与害虫防治]