红马赛克病毒的一个分离菌株的完整基因组序列
1Division of Crop Protection, ICAR-Indian Institute of Spices Research, Marikunnu, Kozhikode, Kerala, 673012, India.
Archives of virology
|September 5, 2023
概括
红马赛克病毒 (CdMV) 呈现出高变异性,新的基因组序列显示出与之前报告的分离物有显著差异. 这种遗传多样性表明CdMV可能包括多个不同的物种.
科学领域:
- 植物病毒学 植物病毒学
- 分子生物学分子生物学
- 基因组学就是基因组学.
背景情况:
- 红枣马赛克病毒 (CdMV) 导致红枣的马赛克病.
- CdMV是Potyviridae家族的一个高度变化的成员.
- 此前,只有一个CdMV的完整基因组序列 (来自卡纳塔克邦) 已被报告.
研究的目的:
- 确定来自喀拉拉邦 (KI) 的CdMV分离物的完整基因组序列.
- 测序来自印度各个地区的9个CdMV分离物的完整CP基因.
- 分析CdMV的遗传多样性和变异性.
主要方法:
- 全基因组测序的CdMV (KI) 隔离.
- 9个额外的CdMV分离物的部分基因组测序 (CP基因).
- 核酸和氨基酸序列的生物信息分析.
- 与之前报告的卡纳塔卡州 (KS) 隔离物进行比较分析.
主要成果:
- CdMV (KI) 的完整基因组长达8255个核酸,具有两个ORF.
- 与KS分离物相比,观察到UTR和CP基因长度的显著差异.
- KI分离物与KS分离物共享76%的基因组和85%的多蛋白质同一性,这表明差异很大.
- 对16个CP基因序列的分析揭示了实质性的异质性,表明多种CdMV物种.
结论:
- 喀拉拉州的CdMV隔离区 (KI) 与卡纳塔克州的隔离区 (KS) 差异很大.
- 在CP基因中观察到的遗传异质性支持将CdMV分类为多种物种.
- 需要进一步的研究,以充分描述红马赛克病毒中的多样性.
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