|Table of Contents|

Analysis of Dynamic Change of Soybean Mosaic Virus Strains in Heilongjiang Province of China(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2014年06期
Page:
880-884
Research Field:
Publishing date:

Info

Title:
Analysis of Dynamic Change of Soybean Mosaic Virus Strains in Heilongjiang Province of China
Author(s):
LI Kai; XIA Ying-chun; WANG Da-gang; YANG Yong-qing; REN Rui; GAO Le; ZHANG Kai; ZHI Hai-jian
Soybean Research Institute of Nanjing Agricultural University National Center for Soybean Improvement Key Laboratory of Biology and Genetic Improvement of Soybean,Ministry of Agriculture National Key Laboratory for Crop Genetics and Germplasm Enhancement,Nanjing 210095,China
Keywords:
Soybean; Soybean mosaic virus（SMV）; Biological purification with single-lesion isolation; Serological determination; Soybean differentials
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2014.06.0880
Abstract:
From 461 leaf samples with soybean mosaic virus (SMV)like symptoms collected from 68 fields(production fields,some experimental farm and research plots) of 6 cities（Harbin,Suihua,Heihe,Qiqihar,Jiamusi and Mudanjiang）of Heilongjiang province in China during soybean mosaic virus disease onset peak in 2012,sixty-three positive SMV isolates were obtained after preliminary identification on the susceptible soybean cv.Nannong 1138-2,biological purification with single-lesion isolation and serological determination.Based on disease reactions on 10 differentials used in China as a representative from various reported differential cultivar systems,the 63 isolates were divided into 2 strains.Six isolates were classified into strain SC15,and the other 57 isolates were SC18 strain.The composition of SMV strains found in Heilongjiang province was relatively simple,less virulent strain SC18,which was predominant and widespread in Heilongjiang province,accounted for 90.5% of the total isolates and was distributed in 6 cities.While virulent strain SC15,accounted for only 9.5% of the total isolates and was distributed in 3 cities.Comparison with the previous identification results showed that SC15 and SC18 were similar to Northeastern No.3 strain and No.1 strain identified by Lyu et al in pathotypic,respectively.It is clear that SC18 is the key consideration SMV strains during disease control and soybean breeding program for SMV resistance.

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Last Update: 2014-12-29