野生动物
野生動物
야생동물
CHINESE WILDLIFE
2012年
2期
91-96
,共6页
彭仕明%李少基%肖建雄%陈武
彭仕明%李少基%肖建雄%陳武
팽사명%리소기%초건웅%진무
小熊猫%蛔虫:内转录间隔区(ITS)%5.8S核糖体DNA%PCR扩增%序列分析
小熊貓%蛔蟲:內轉錄間隔區(ITS)%5.8S覈糖體DNA%PCR擴增%序列分析
소웅묘%회충:내전록간격구(ITS)%5.8S핵당체DNA%PCR확증%서렬분석
Red panda%Ascarids%Internal transcribed spacers (ITS)%5.8S rDNA%PCR amplification%Sequence analysis
以广州动物园小熊猫体内分离出的蛔虫为研究对象,运用PCR方法,以保守引物NC5和NC2扩增其核糖体DNA(rDNA)的内转录间隔区(ITS)和5.8S序列,并对扩增后的片段进行纯化、克隆至pGEM-Teasy载体、转化、测序和序列分析,以鉴定小熊猫蛔虫的种类。结果显示2条蛔虫样品的ITS及5.8SrDNA序列基本一致,总长为913bp,样品间序列相似性为99.7%。将序列与GenBank^TM公布的相关序列进行比较分析,结果显示2条蛔虫的ITS及5.8S序列与黑熊横走贝蛔虫(Baylisascaris transfuga注册号AB571304)相似性分别为98.1%、98.4%,与大熊猫西氏贝蛔虫(Baylisascaris schroederi注册号JN210912)相似性分别为96.9%、97.1%,与猪蛔虫(Ascaris suum注册号AB571302)相似性分别为89.9%、90.1%,与人蛔虫(Ascarislumbricoides注册号AB571296)相似性分别为89.8%、90.1%,ITS-1序列与浣熊贝蛔虫(Baylisascaris procyonis注册号AB053230)相似性分别为92.O%、92.3%。研究结果表明小熊猫体内分离的蛔虫可能为贝蛔属蛔虫,从而为蛔虫的进一步分类、鉴定和遗传变异研究奠定了基础。
以廣州動物園小熊貓體內分離齣的蛔蟲為研究對象,運用PCR方法,以保守引物NC5和NC2擴增其覈糖體DNA(rDNA)的內轉錄間隔區(ITS)和5.8S序列,併對擴增後的片段進行純化、剋隆至pGEM-Teasy載體、轉化、測序和序列分析,以鑒定小熊貓蛔蟲的種類。結果顯示2條蛔蟲樣品的ITS及5.8SrDNA序列基本一緻,總長為913bp,樣品間序列相似性為99.7%。將序列與GenBank^TM公佈的相關序列進行比較分析,結果顯示2條蛔蟲的ITS及5.8S序列與黑熊橫走貝蛔蟲(Baylisascaris transfuga註冊號AB571304)相似性分彆為98.1%、98.4%,與大熊貓西氏貝蛔蟲(Baylisascaris schroederi註冊號JN210912)相似性分彆為96.9%、97.1%,與豬蛔蟲(Ascaris suum註冊號AB571302)相似性分彆為89.9%、90.1%,與人蛔蟲(Ascarislumbricoides註冊號AB571296)相似性分彆為89.8%、90.1%,ITS-1序列與浣熊貝蛔蟲(Baylisascaris procyonis註冊號AB053230)相似性分彆為92.O%、92.3%。研究結果錶明小熊貓體內分離的蛔蟲可能為貝蛔屬蛔蟲,從而為蛔蟲的進一步分類、鑒定和遺傳變異研究奠定瞭基礎。
이엄주동물완소웅묘체내분리출적회충위연구대상,운용PCR방법,이보수인물NC5화NC2확증기핵당체DNA(rDNA)적내전록간격구(ITS)화5.8S서렬,병대확증후적편단진행순화、극륭지pGEM-Teasy재체、전화、측서화서렬분석,이감정소웅묘회충적충류。결과현시2조회충양품적ITS급5.8SrDNA서렬기본일치,총장위913bp,양품간서렬상사성위99.7%。장서렬여GenBank^TM공포적상관서렬진행비교분석,결과현시2조회충적ITS급5.8S서렬여흑웅횡주패회충(Baylisascaris transfuga주책호AB571304)상사성분별위98.1%、98.4%,여대웅묘서씨패회충(Baylisascaris schroederi주책호JN210912)상사성분별위96.9%、97.1%,여저회충(Ascaris suum주책호AB571302)상사성분별위89.9%、90.1%,여인회충(Ascarislumbricoides주책호AB571296)상사성분별위89.8%、90.1%,ITS-1서렬여완웅패회충(Baylisascaris procyonis주책호AB053230)상사성분별위92.O%、92.3%。연구결과표명소웅묘체내분리적회충가능위패회속회충,종이위회충적진일보분류、감정화유전변이연구전정료기출。
Our research objective was to identify ascarid samples isolated from a red panda at the Guangzhou Zoo. The internal transcribed spacer (ITS) and 5.8S of ribosomal DNA (rDNA) of two ascarid samples were amplified by PCR using a pair of conserved primers ( NC5 and NC2 ) , and the amplified products were purified, cloned and sequenced. The lengths of se-quences ( ITS and 5.8S rDNA) from two samples were both 913 bp, and the similarity of sequences was 99. 7% between the two ascarid samples. The similarities of ITS and 5.8S sequences were 98. 1% and 98.4%, respectively , compared with the relevant sequences of Baylisascaris transfuga ( AB571304 ) available from GenBankTM. Similarities were 96. 9% and 97. 1%compared with Baylisascaris schroederi (JN210912) , 89.9% and 90. 1% compared with Ascaris suum (AB571302) , 89.8% and 90. 1% compared with Ascaris lumbricoides (AB571296) , and 92.0% and 92. 3% compared with the ITS - 1 sequence of Baylisascaris procyonis ( AB053230) . We conclude that the asearid nematodes might represent Baylisascaris sp. This research, provided a foundation for further studies of molecular identification and molecular genetics of ascarid.