This research is to study how to check. And study the nucleotide sequence of Crinivirus is the disease yellow cards in melon plants. The use of molecular biology techniques in check. The samples were collected plants from Kanchanaburi province.Nan Kai and suphan Buri. All 25 samples. When examined with technical Reverse transcription polymerase chain reaction (RT-PCR) with primer CY-CPm F (ATG GAT GCT GAG. TTT GTG G) and CY-CPm R (CTT AGC GTG GGT CCA ACC TG):The results showed that the size 1200 polyacrylamide DNA base pairs. The 11 samples which is the size of a gene CPm (minor coat protein) of Crinivirus. So, for example, that the gene CPm of Crinivirus and nucleotide sequencing indicated that the sequence of the nucleo peptides of CPm gene.Of the various sample used in the study are similar to Cucurbit yellow stunting disorder virus (CYSDV) about 61-62% and the like. Cucurbit chlorosis yellow virus (CCYV) about 51-52%, which indicates that the Crinivirus detected in Thailand.Such as Spain, the United States, Japan and China, etc.!
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