通过高通量安普利康测序识别葡萄藤克隆:一个概念验证研究
Claudio Urra1,2,3, Dayan Sanhueza2, Catalina Pavez1,2
1UC Davis-Chile, Life Sciences Innovation Center, Santiago 7520424, Chile.
G3 (Bethesda, Md.)
|July 3, 2023
概括
研究人员探索了Vitis vinifera葡萄克隆葡萄中的遗传多样性. 他们开发了基因标记,以区分卡伯内索维尼翁,索维尼翁白,查多内和梅罗特的克隆,有助于葡萄藤识别.
科学领域:
- 葡萄种植和葡萄酒学 葡萄种植和葡萄酒学
- 植物遗传学 植物遗传学
- 基因组学就是基因组学.
背景情况:
- 葡萄藤 (Vitis vinifera) 品种存在于具有独特农学和学特征的多个克隆选择中.
- 克隆之间的表型变异来自于在广泛的无性繁殖中积累的体质突变.
- 葡萄藤品种中的遗传多样性和克隆歧视的可靠方法仍未得到充分探索.
研究的目的:
- 研究四种主要葡萄酒品种的克隆选择中的遗传变异:卡伯内索维尼翁,索维尼翁布朗克,沙登内和梅罗特.
- 开发新的遗传标记,以明确歧视这些葡萄克隆.
- 为葡萄栽培行业推进葡萄藤基因型化策略.
主要方法:
- 使用短读技术对18个葡萄藤克隆的全基因组测序 (总共46个基因组).
- 这种变异与已建立的参考基因组 (卡伯内索维尼翁,查多内,梅洛) 相反,并为索维尼翁布朗克 (Sauvignon Blanc) 提出了新的组合.
- 验证了46个克隆标记,主要是小插入/删除 (InDels),使用高通量安普利康测序.
主要成果:
- 每个克隆平均发现了400万个遗传变异,主要是单核酸变异 (74.2%) 和小的InDels (25.8%).
- 在所有分析的克隆中,变异频率一致.
- 开发和验证了46个基因标记,能够在评估样本的很大一部分中区分克隆.
结论:
- 这项研究成功地揭示了葡萄藤克隆之间显著的遗传变异.
- 开发的遗传标记器为准确的葡萄克隆鉴定和特征提供了强大的工具.
- 这些发现代表了葡萄藤基因定型的重大进步,通过改善植物物质管理,使葡萄种植和葡萄酒行业受益.
相关概念视频
03:21RNA-seq
10.1K
RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases.
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
10.1K
03:00Next-generation Sequencing
91.6K
The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features....
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features....
91.6K
02:54Evolutionary Relationships through Genome Comparisons
5.8K
Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
5.8K