基于全基因组再测序的53种大白资源的亲属关系和人口遗传结构分析
Qirui Xin1, Jun Qing1, Yanhong He1
1College of Forestry, Inner Mongolia Agricultural University, Hohhot 010019, China.
Current issues in molecular biology
|December 27, 2024
概括
全基因组再测序 (WGRS) 确定了单核酸多态性 (SNP) 标记物,以分析杏仁的遗传结构. 这项研究澄清了杏仁的关系和分类,有助于生殖质资源的利用.
科学领域:
- 人口遗传学 人口遗传学
- 基因组学就是基因组学.
- 植物育种 植物育种
背景情况:
- 了解普通杏仁的遗传多样性和种群结构 (P. 亚美尼亚卡 (armeniaca) 对于其有效的繁殖和保护至关重要.
- 以前的研究可能在充分描述杏仁品种内复杂的遗传关系方面具有有限的范围.
研究的目的:
- 使用单核酸多态 (SNP) 标记,分析53种常见的杏仁品种之间的种群遗传结构和家族遗传关系.
- 为了提供一个理论基础,对常见的杏仁生殖质资源的分类和利用.
主要方法:
- 全基因组重新排序 (WGRS) 在53个子品种中进行.
- 鉴定了高质量的SNP位点,并在与"香"杏仁参考基因组对齐后进行过.
- 用专门的生物信息软件 (GCTA,FastTree,Admixture) 进行了遗传学分析,G矩阵分析,主要成分分析 (PCA) 和人口结构分析.
主要成果:
- 确定了超过8800万个高质量的SNP地点,揭示了研究子品种之间显著的遗传变异.
- 基因分析一致将53种杏子品种分为四个不同的群体,表明了明显的种群结构.
- 像LNLJX这样的特定品种显示出独特的变异模式,而关系范围从非常接近 (PLDJX和BK1) 到遥远 (YZH和LGWSX).
结论:
- 来自WGRS的SNP标记物是评估普通子遗传变异,亲属关系和种群结构的有效工具.
- 该研究成功将杏仁品种分为四组,为育种计划和生殖质管理提供了宝贵的见解.
- 这项研究对理解和利用常见的杏仁遗传资源做出了重大贡献.
更多相关视频
07:03Establishing Pollination Requirements in Japanese Plum by Phenological Monitoring, Hand Pollinations, Fluorescence Microscopy and Molecular Genotyping
Published on: November 9, 2020
3.0K
12:33Optimization and Comparative Analysis of Plant Organellar DNA Enrichment Methods Suitable for Next-generation Sequencing
Published on: July 28, 2017
12.8K
相关概念视频
What is Population Genetics?
56.8K
A population is composed of members of the same species that simultaneously live and interact in the same area. When individuals in a population breed, they pass down their genes to their offspring. Many of these genes are polymorphic, meaning that they occur in multiple variants. Such variations of a gene are referred to as alleles. The collective set of all the alleles within a population is known as the gene pool.
56.8K
Evolutionary Relationships through Genome Comparisons
5.6K
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...
5.6K
Genome-wide Association Studies-GWAS
12.0K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
12.0K
Gene Flow
34.2K
Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
34.2K
Pedigree Analysis
81.7K
Overview
81.7K
Gene Evolution - Fast or Slow?
7.0K
The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
In contrast, regions which code...
In contrast, regions which code...
7.0K
