明尼苏达州大豆胞囊线虫毒力表型的特征分析

Characterization of the Virulence Phenotypes of Heterodera glycines in Minnesota.

作者信息

Zheng Jingwu, Li Yuhong, Chen Senyu

机构信息

University of Minnesota, Southern Research and Outreach Center, 35838 120th Street, Waseca, MN 56093-4521. Current address of J. Zheng: Institute of Biotechnology, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310029, P. R. China; Y. Li: Donald Danforth Plant Science Center, 975 North Warson Rd., St. Louis, MO 63132.

出版信息

J Nematol. 2006 Sep;38(3):383-90.

PMID:19259544

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2586705/

Abstract

Knowledge of the virulence phenotypes of soybean cyst nematode, Heterodera glycines populations is important in choosing appropriate sources for breeding resistant cultivars and managing the nematode. We investigated races of 59 H. glycines populations collected from 1997 to 1998 and races and HG Types of 94 populations collected in 2002 from soybean fields across southern and central Minnesota. In the 1997 to 1998 samples, race 3 was predominant and represented 78% of the populations. The remaining populations were 11.9% race 1, 1.7% race 4, 6.8% race 6, and 1.7% race 14. In the 2002 samples, the populations were classified as 15.3% race 1, 77.6% race 3, 2.4% race 5, 3.5% race 6 and 1.2% race 9. Percentage of 1997 to 1998 populations with female indices (FI) higher than 10 were 10.2% on Pickett 71, 3.4% on Peking, 13.6% on PI 88788, 3.4% on PI 90763, 1.7% on PI 209332, and 1.7% on PI 437654. Percentage of 2002 populations with FI >10 was 1.1% on Peking, 17.0% on PI88788, 14.9% on PI 209332, 33.0% on PI 548316, 11.7% on Pickett 71, and 0% on the other three indicators, PI 90763, PI 437654, and PI 89772. The line PI 548316 was relatively susceptible to the Minnesota H. glycines populations and may not be recommended for breeding resistant cultivars in the state. There was no noticeable change of frequencies of virulence phenotypes in response to the use of resistant cultivars during 1997 to 2002 in Minnesota except that FI increased on the PI 209332.

摘要

了解大豆胞囊线虫（Heterodera glycines）群体的毒力表型对于选择合适的抗线品种育种资源和防治该线虫至关重要。我们调查了1997年至1998年采集的59个大豆胞囊线虫群体的生理小种，以及2002年从明尼苏达州南部和中部大豆田采集的94个群体的生理小种和HG类型。在1997年至1998年的样本中，3号生理小种占主导，占群体的78%。其余群体为1号生理小种占11.9%、4号生理小种占1.7%、6号生理小种占6.8%、14号生理小种占1.7%。在2002年的样本中，群体分类为1号生理小种占15.3%、3号生理小种占77.6%、5号生理小种占2.4%、6号生理小种占3.5%、9号生理小种占1.2%。1997年至1998年群体中雌虫指数（FI）高于10的比例，在Pickett 71上为10.2%，在北京大豆上为3.4%，在PI 88788上为13.6%，在PI 90763上为3.4%，在PI 209332上为1.7%，在PI 437654上为1.7%。2002年群体中FI>10的比例，在北京大豆上为1.1%，在PI88788上为17.0%，在PI 209332上为14.9%，在PI 548316上为33.0%，在Pickett 71上为11.7%，在其他三个指标品种PI 90763、PI 437654和PI 89772上为0%。PI 548316品系对明尼苏达州的大豆胞囊线虫群体相对敏感，可能不推荐用于该州抗线品种的育种。1997年至2002年期间，明尼苏达州除了PI 209332上的FI有所增加外，毒力表型频率没有因抗性品种的使用而发生明显变化。