nested variant 中文意思是什麼

nested variant 解釋
嵌套變體
  • nested : 巢狀的
  • variant : adj. 1. 相異的，不同的，不一致的。2. 各種各樣的。3. 易變的，不定的。n. 1. 變體，變形；變量。2. （字音的）轉訛；（字的）異體。3. 【統計學】變式；【生物學】變種，變異體。
  1. Infectious bursal disease virus has been a great concern for the poultry industry for a long time, particularly for the past decade when its " re - emergence " in variant or highly virulent forms. in this study, two sets of primers ( pta and pts, ibda and ibds ), flanking the hyper - variable region of vp2 gene, were designed to run a reverse transcription polymerase chain reaction ( primary rt - pcr ) and nested - pcr. both of these assays can amplify all of 12 reference strains which including pathotypes cibdv, vvibdv and vibdv, but not the 5 negative reference pathogens of chicken

    結果12個參考毒株均能擴增出約679bp的目的片段，而陰性對照的常見5種雞病病原：雞新城疫病毒（ ndv ） 、雞傳染性支氣管炎病毒（ ibv ） 、雞傳染性貧血病毒（ caiv ） 、大腸桿菌和多殺性巴氏桿菌均沒有擴增到任何片段；應用建立的技術對疑似ibd的34份臨床病料進行檢測，並同時在基礎rt - pcr擴增的片段內設計另一對引物進行nested - pcr 。
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