对可移植元素的比较分析揭示了十足动物中可移植元素的多样性及其对基因组进化的影响
Yuanfeng Xu1,2,3, Yongkai Tang2,3, Wenrong Feng2,3
1School of Marine Sciences, Ningbo University, Ningbo, 315020, China.
Marine biotechnology (New York, N.Y.)
|November 4, 2023
概括
十足甲类动物中的可转移元素 (TEs) 显示出不同的基因组比例和组成. 某些的PIF-Harbinger TEs可能与空气暴露耐受性有关,而Jockey-like序列表明水平基因转移可能与白斑综合征病毒有关.
科学领域:
- 基因组学就是基因组学.
- 进化生物学 进化生物学
- 分子生物学分子生物学
背景情况:
- 可转移元素 (TE) 是移动的遗传序列,影响宿主基因组的进化.
- 十足类甲类动物是研究TE驱动的适应性进化的有价值的模型.
研究的目的:
- 在八个十足动物物种和一个外群物种中识别和分类TEs.
- 调查TEs在decapoda中的基因组分布,组成和潜在的功能作用.
主要方法:
- 基于同质的和de novo注释策略被用于TE识别.
- 使用相关性分析和转录组数据来评估TE表达模式.
- 对特定的TE家族进行了序列对齐和遗传学比较.
主要成果:
- 在十足动物物种中,TE的比例和分类组合差异很大.
- 在*Eriocheir sinensis*和*Scylla paramamosain*中,PIF-Harbinger TEs是丰富的,在压力下表达变化.
- 在所有十足动物物种中发现了与白斑综合征病毒 (WSSV) 相同的Jockey-like序列 (JLSs),表现出非一致的基因分布.
结论:
- PIF-Harbinger TEs可能在E. sinensis和S. paramamosain中扩大,可能有助于空气暴露耐受性.
- 特定于WSSV的JLS表明水平基因转移,可能会影响WSSV的出现.
- 这项研究提供了十足的TE研究的数据,并为繁殖抗压和抗疾病的品种提供了洞察力.
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