在Hemerocallis citrina中对线粒体基因组的Codon使用特征和植物遗传学分析
Kun Zhang1,2, Yiheng Wang3, Yue Zhang4
1College of Agriculture and Life Sciences, Shanxi Datong University, Datong, Shanxi, China. 876828320@qq.com.
BMC genomic data
|January 13, 2024
概括
黑米洛卡利斯 (Hemerocallis citrina) 在它的线粒体基因组中表现出弱的密码子使用偏差,主要受到自然选择的影响. 这项研究揭示了它与其他植物物种的密切进化关系,基于线粒体基因分析.
科学领域:
- 基因组学就是基因组学.
- 分子生物学分子生物学
- 植物科学 植物科学
背景情况:
- 传统作物Hemerocallis citrina Baroni具有重要的食用,药用和装饰价值.
- 在线粒体 (mt) 基因中的Codon使用偏差 (CUB) 分析提供了对生物体进化和原生学的见解.
- 了解H. citrina的CUB可以帮助改善外源基因表达和繁殖计划.
研究的目的:
- 系统地分析Hemerocallis citrina的线粒体基因组中的子使用偏差 (CUB) 模式.
- 评估影响H. citrina线粒体基因中CUB的因素.
- 根据CUB模式探索H. citrina的进化关系.
主要方法:
- 编码子的组成分析,包括GC含量和编码子的有效数量 (ENC).
- 使用ENC图,中立图和平价规则2 (PR2) 图进行分析.
- 基于相对同名编码子使用 (RSCU) 的集群和线粒体蛋白质编码基因 (PCG) 的基因分析.
主要成果:
- 海默洛卡利斯 (Hemerocallis citrina) 表现出弱CUB,偏好A/T丰富的核酸和编码子.
- 基因长度和组成约束对CUB产生重大影响,自然选择被确定为决定性因素.
- 遗传学分析表明,H. citrina与阿斯巴拉格斯官员植物,Chlorophytum comosum和Allium物种密切相关.
结论:
- 在H. citrina线粒基因组中的弱CUB是由多个因素塑造的,主要是自然选择.
- H. citrina的进化关系与阿斯巴拉古斯官员,Chlorophytum comosum和Allium物种密切相关,基于线粒体CUB模式.
- 这些发现为基因改造和H. citrina.的遗传学研究提供了参考.
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