| 宁应之,陈凯,张晶,姜传奇,熊杰,缪炜.2016.八种纤毛虫减数分裂基因的分子进化研究.动物学杂志,51(2):301-309. |
| 八种纤毛虫减数分裂基因的分子进化研究 |
| Molecular Evolution of Meiotic Genes in Eight Ciliates |
| 投稿时间：2015-09-30 修订日期：2016-02-25 |
| DOI：DOI: 10.13859/j.cjz.201602016 |
| 中文关键词: 减数分裂基因 分子进化 纤毛虫 |
| 英文关键词:Meiotic genes Molecular evolution Ciliates |
| 基金项目:国家国际科技合作专项项目 |
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| 中文摘要: |
| 减数分裂是真核生物适应性进化的重要机制,以八种纤毛虫作为实验对象,通过生物信息学方法对其14个减数分裂基因进行了鉴定及分子进化研究。结果表明：(1)纤毛虫减数分裂局部过程的基因丢失与复制体现出种的特异性；(2)纤毛虫减数分裂相关基因在进化过程中很保守；(3)纤毛虫减数分裂重要的同源重组过程是在真核生物中不常见的Ⅱ型。本研究表明纤毛虫可能代表了真核生物较原始的减数分裂方式,在进化的过程中很保守,为研究真核生物减数分裂起源与进化提供了重要线索。 |
| 英文摘要: |
| Meiosis is an important mechanism in the eukaryotes adaptive evolution of eukaryotes. Here, we identified 14 meiotic genes in eight ciliates and studied their molecular evolution. The results show that: (1) Specific meiotic genes lost and duplication were found in ciliates; (2) meiotic genes are conserved in ciliates; (3) Recombination process in meiosis belong to class II type in ciliates, which was not common in other eukaryotes. These results indicated that meiosis in ciliate may represent the original style, and may be a good model to study the origin and evolution of eukaryotic meiosis process. |
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