寻找,预测,以及在多倍体甘基因组中抵抗基因的演变
Yiting Huang1,2, Yingfeng Luo1,2, Xiao Lin1,2
1Department of Agri-microbiomics and Biotechnology, State Key Laboratory of Microbial Diversity and Innovative Utilization, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.
iScience
|July 7, 2025
概括
一个新的管道,DaapNLRSeek,准确地预测了复杂的甘基因组中的核酸结合氨酸丰富的重复 (NLR) 基因. 这种工具有助于加快甘对降产病原体的耐药性繁殖.
科学领域:
- 植物基因组学 植物基因组学
- 分子生物学分子生物学
- 农作物科学 农作物科学
背景情况:
- 甘对于糖和生物燃料至关重要,但易受致病菌的影响,导致产量损失.
- 植物抗病能力依赖于核酸结合的氨酸丰富的重复蛋白 (NLR).
- 在复杂的多倍体甘基因组中预测NLR基因是一个重大挑战.
研究的目的:
- 开发一个准确的管道,用于NLR基因预测在多倍体甘.
- 分析甘中NLR基因的结构,对线性和演变.
- 为了识别参与植物免疫的功能性NLR基因.
主要方法:
- 多倍体NLR (DaapNLRSeek) 管道的双倍体辅助注释的开发.
- 应用DaapNLRSeek在Erianthus rufipilus和五种甘品种中注释NLR基因.
- 对NLR基因架构,对线性,进化和Nicotiana benthamiana的功能验证的分析.
主要成果:
- 在使用DaapNLRSeek的各种甘基因组中成功注释了NLR基因.
- 鉴定了配对的NLRs,TIR-only和TPK基因,为NLR多样性提供了洞察力.
- 证明了两种与甘配对的NLRs可以诱导N. benthamiana的免疫反应.
结论:
- DaapNLRSeek是一个有效的工具,用于在复杂的多倍体基因组中准确预测NLR基因.
- 这些发现为了解甘中的NLR基因功能和进化提供了基础.
- 这条管道将加速甘抗性育种计划,增强作物弹性.
相关概念视频
Overview of Transposition and Recombination
16.1K
Transposons make up a significant part of genomes of various organisms. Therefore, it is believed that transposition played a major evolutionary role in speciation by changing genome sizes and modifying gene expression patterns. For example, in bacteria, transposition can lead to conferring antibiotic resistance. Movement of transposable elements within the genetic pool of pathogenic bacteria can aid in transfer of antibiotic-resistant genetic elements. In eukaryotes, transposons can carry out...
16.1K
Gene Flow
35.6K
Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
35.6K
Gene Duplication and Divergence
6.3K
The seminal work of Ohno in 1970 popularized the idea of gene duplication and divergence. DNA sequence comparison studies reveal that a large portion of the genes in bacteria, archaebacteria, and eukaryotes was generated by gene duplication and divergence, indicating its critical role in evolution.
The duplicated copies of the gene are called Paralogs. Paralogs with similar sequences and functions form a gene family. Across several species, a large number of gene families are...
The duplicated copies of the gene are called Paralogs. Paralogs with similar sequences and functions form a gene family. Across several species, a large number of gene families are...
6.3K
Frequency-dependent Selection
22.3K
When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
22.3K


