RAPD
放大器
生物
树状图
遗传多样性
琼脂糖凝胶电泳
DNA分析
炭疽菌
遗传标记
遗传分析
聚合酶链反应
兽医学
遗传学
植物
园艺
DNA
基因
人口
医学
社会学
人口学
作者
Vikas Gupta,Ashutosh Kumar Pandey,Prashant Kumar,Brijesh Pandey,Rajarshi Kumar Gaur,Vivek K. Bajpai,Neha Sharma,Shruti Sharma
出处
期刊:African Journal of Biotechnology
[Academic Journals]
日期:2010-06-28
卷期号:9 (26): 4009-4013
被引量:7
标识
DOI:10.5897/ajb2010.000-3278
摘要
Twenty-five isolates of Colletotrichum gloeosporioides causing mango anthracnose were collected from different agroclimatic zones of India. The isolates were evaluated for their pathogenic variability on mango seedlings and genetic characterization using random amplified polymorphic DNA (RAPD molecular techniques). The random primers OPA-1, 3, 5, 9, 11, 15, 16 and 18 were used and the twenty-five isolates were grouped into two. The amplified DNA fragments (amplicons) obtained was compared by agarose gel electrophoresis. Isolate specific RAPD fingerprints were obtained. Out of eight primers in RAPD, OPA-1, 3 and 18 were able to produce reproducible banding pattern. Each of these primers generated a short spectrum of amplicons, located between 661 and 2291-bp markers, indicative of genetic polymorphism. Dendogram revealed more than 75% level of similarity. 4.36% polymorphism was also found in individual isolates that was not statistically significant (P > 0.05) among the sample, it also indicates that all the isolates tested had approximately same genetic identity. The data suggest that RAPD may be of value by virtue of its rapidity, efficiency and reproducibility in generating genetic fingerprints of C. gloeosporioides isolates.
Key words: Colletotrichum gloeosporioides, genetic identification, mango anthracnose.
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