Idris A M, Brown J K
Department of Plant Sciences, The University of Arizona, Tucson, Arizona 85721, USA.
Arch Virol. 2005 May;150(5):1003-12. doi: 10.1007/s00705-004-0484-7. Epub 2005 Feb 10.
Two distinct viral genotypes were identified in the same tomato plant collected from Gezira, Sudan and are provisionally designated Tomato leaf curl Sudan virus (ToLCSDV-Gez) and Tomato yellow leaf curl virus-Sudan (TYLCV-SD). A third genotype was identified in tomato samples collected in Shambat, Sudan (ToLCSDV-Sha). The ToLCSDV-Gez and ToLCSDV-Sha isolates were approximately 90% identical, TYLCV-SD from Gezira shared approximately 93% identity with TYLCV-Mld. Recombination analyses identified two fragments in the ToLCSDV-Gez and TYLCV-SD genomes, providing evidence that these two genomes had undergone intermolecular recombination. A half unit size (737 nt) single-stranded satellite DNA was associated with ToLCSDV-Gez and TYLCV-SD.
在从苏丹杰济拉采集的同一株番茄植株中鉴定出两种不同的病毒基因型，它们被临时命名为番茄卷叶苏丹病毒（ToLCSDV-Gez）和番茄黄叶卷曲病毒-苏丹（TYLCV-SD）。在苏丹尚巴特采集的番茄样本中鉴定出第三种基因型（ToLCSDV-Sha）。ToLCSDV-Gez和ToLCSDV-Sha分离株的相似度约为90%，来自杰济拉的TYLCV-SD与TYLCV-Mld的相似度约为93%。重组分析在ToLCSDV-Gez和TYLCV-SD基因组中鉴定出两个片段，这证明这两个基因组发生了分子间重组。一个半单位大小（737 nt）的单链卫星DNA与ToLCSDV-Gez和TYLCV-SD相关联。
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