中国科学院国家基因研究中心率先完成了国际水稻基因组计划的第4号染色体全长序列的精确测序，该成果已在英国的《自然》杂志发表。
As part of international efforts to completely sequence the entire rice genome, national Center for Gene Research has finished the sequence and analysis of rice chromosome 4.
目的：克隆测序新分离呼肠病毒的S1全长基因组片段，并对其进行序列分析。
Objective: To clone, sequence and analyze genome segment 1 (S1) of new isolated reovirus strains.
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