To understand virus infection situation of integrated demonstration and regional test sugarcane varieties in national sugarcane system in Guilin City,Guangxi Province,leaf samples with or without symptoms were collect...To understand virus infection situation of integrated demonstration and regional test sugarcane varieties in national sugarcane system in Guilin City,Guangxi Province,leaf samples with or without symptoms were collected from 37 sugarcane varieties,and five kinds of viruses were detected by RT-PCR with specific primers,including Sugarcane yellow leaf virus( SCYLV),Sugarcane streak mosaic virus( SCSMV),Sorghum mosaic virus( SrM V),Sugarcane mosaic virus( SCMV) and Sugarcane bacilliform virus( SCBV). The results showed that SCYLV was detected from four sugarcane varieties,and the detection rate was10. 81%; SCSMV was detected from five sugarcane varieties,and the detection rate was 13. 51%; SrM V was detected from four sugarcane varieties,and the detection rate was 10. 81%; SCMV had not been found; SCBV was detected from 27 sugarcane varieties,and the detection rate was 72. 9%. Additionally,mixed infection of different viruses was widespread,and the total mixed infection rate was 21. 62%. Thus,integrated demonstration and regional test sugarcane varieties in national sugarcane system in Guilin City had been seriously infected by viruses,and mixed infection of different viruses was common. The paper will provide a reference for breeding and popularization of antiviral sugarcane varieties.展开更多
基金Major Science and Technology Project of Guangxi Province(Guike AA17202042-12)Basic Research Project of Guangxi Academy of Agricultural Sciences(2015YT42)。
文摘【目的】建立甘蔗线条花叶病毒(Sugarcane streak mosaic virus,SCSMV)的RT-LAMP检测方法,为SCSMV的检测提供技术支持。【方法】根据甘蔗线条花叶病毒外壳蛋白基因的保守序列设计特异引物,优化RT-LAMP的反应条件,对比分析RT-LAMP的检测灵敏度和特异性;并在RT-LAMP反应产物中加入SYBR GREEN I进行可视化检测,方便快速判定结果。【结果】成功建立了一种用于检测SCSMV的RT-LAMP方法,可在60~63℃下60 min完成对SCSMV的检测,且具有较高的灵敏度,比传统RT-PCR高100倍,最低检测RNA浓度为167.9×10-5 ng。此外,该方法具有较高的特异性,可特异检测SCSMV。【结论】建立了一种灵敏、简便、快速的SCSMV RT-LAMP检测方法并用于田间甘蔗样品的检测。
基金Supported by Special Fund of China Agricultural(Sugar)Industry Research System(CARS-170301)Basal Research Fund of Central Public Welfare Research Institutes(1630052016010)
文摘To understand virus infection situation of integrated demonstration and regional test sugarcane varieties in national sugarcane system in Guilin City,Guangxi Province,leaf samples with or without symptoms were collected from 37 sugarcane varieties,and five kinds of viruses were detected by RT-PCR with specific primers,including Sugarcane yellow leaf virus( SCYLV),Sugarcane streak mosaic virus( SCSMV),Sorghum mosaic virus( SrM V),Sugarcane mosaic virus( SCMV) and Sugarcane bacilliform virus( SCBV). The results showed that SCYLV was detected from four sugarcane varieties,and the detection rate was10. 81%; SCSMV was detected from five sugarcane varieties,and the detection rate was 13. 51%; SrM V was detected from four sugarcane varieties,and the detection rate was 10. 81%; SCMV had not been found; SCBV was detected from 27 sugarcane varieties,and the detection rate was 72. 9%. Additionally,mixed infection of different viruses was widespread,and the total mixed infection rate was 21. 62%. Thus,integrated demonstration and regional test sugarcane varieties in national sugarcane system in Guilin City had been seriously infected by viruses,and mixed infection of different viruses was common. The paper will provide a reference for breeding and popularization of antiviral sugarcane varieties.
