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[交流]
【求助/交流】文獻(xiàn)中的一點問題,理解不了!。
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Library screening, cloning and sequencing Two degenerate primers (TL3, 5¢-TTYGAICAYCCITAYCCICCIACIAARYIIAGTTT- 3¢ and TL4, 5¢-CATIGGGTCRATICCRTTIGGICCIGCIACIGTNGG- 3¢) were designed from AtTTG1 to amplify 700 bp from putative cotton homologues.Amplified fragments were ligated to pGEM-T Easy (Promega) and used to transform E. coli DH5-a F0 cells (Promega). The insert from one clone was released by EcoRI digestion, oligolabelled (Hodgson and Fisk, 1987) and used to probe a 12 DPA (days post-anthesis) cotton fibre cDNA library. result中與之呼應(yīng)的結(jié)果: Initially, two degenerate TTG1 PCR primers were used to amplify a 700 bp fragment from cotton genomi cDNA. Nucleotide sequencing of four clones revealed two distinct, but very similar, sequences. 問題:最后怎么會出現(xiàn) Nucleotide sequencing of four clones?這個four是怎么來的?用1對簡并引物去擴(kuò)增700bp的片段,假如說擴(kuò)增出了4個不同的片段,這4個片段又怎么分開?重點是那個4 clones是怎么回事?看了兩篇文獻(xiàn)都有這個。 |
木蟲之王 (文壇精英)
我愛打老虎

木蟲之王 (文壇精英)
我愛打老虎

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