植物基因组大小与功能特征和环境适应性相关的研究进展
Yin-Long Xu1, Si-Qi Yang1, Jia-Qi Ye1
1College of Environment and Resources, Dalian Minzu University, Dalian 116000, Liaoning, China.
Ying yong sheng tai xue bao = The journal of applied ecology
|February 10, 2025
概括
植物基因组大小,植物物种的总DNA含量,显著影响功能特征和环境适应. 了解这种关系对于预测植物对全球变化的反应至关重要.
科学领域:
- 植物生物学 植物生物学
- 基因组学就是基因组学.
- 生态生态学 生态生态学
背景情况:
- 植物基因组大小,定义为单 haploid 组染色体的 DNA 含量,在真核生物物种中表现出相当大的多样性.
- 基因组大小是影响各种植物特征和适应策略的基本生物特征.
研究的目的:
- 研究植物基因组大小和关键功能特征之间的复杂关系.
- 探索基因组大小影响植物适应各种环境变量的机制.
主要方法:
- 对有关植物基因组大小的现有文献进行审查和综合.
- 对基因组大小与细胞大小,口腔特征,光合作用效率,细胞周期持续时间和种子质量等特征之间的关联进行分析.
- 检查植物对环境因素的反应,包括温度,降水,海拔,营养素的可用性和重金属污染.
主要成果:
- 植物基因组大小与细胞和生物的功能特征有很强的相关性.
- 基因组大小在调解植物适应环境压力的过程中起着至关重要的作用.
- 细胞大小,口腔密度和种子质量等特定特征与基因组大小有显著的相关性.
结论:
- 这项研究强调了植物基因组大小对功能特征和环境适应性的深刻影响.
- 将基因组大小与功能特征和环境适应性相结合,为了解植物对全球变化的反应提供了一个强大的框架.
- 结合这些元素的进一步研究对于预测植物在气候变化中的生存和进化至关重要.
相关概念视频
Genome Size and the Evolution of New Genes
7.8K
While every living organism has a genome of some kind (be it RNA, or DNA), there is considerable variation in the sizes of these blueprints. One major factor that impacts genome size is whether the organism is prokaryotic or eukaryotic. In prokaryotes, the genome contains little to no non-coding sequence, such that genes are tightly clustered in groups or operons sequentially along the chromosome. Conversely, the genes in eukaryotes are punctuated by long stretches of non-coding sequence.
7.8K
Transcription
146.5K
Overview
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
146.5K
Plant Breeding and Biotechnology
18.8K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
18.8K
Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes
12.0K
The present-day mitochondrial and chloroplast genomes have retained some of the characteristics of their ancestral prokaryotes and also have acquired new attributes during their evolution within eukaryotic cells. Like prokaryotic genomes, mitochondrial and chloroplast genomes neither bind with histone-like proteins nor show complex packaging into chromosome-like structures, as observed in eukaryotes. Unlike mitotic cell divisions observed in eukaryotic cells, mitochondria and chloroplasts...
12.0K
Evolutionary Relationships through Genome Comparisons
5.7K
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...
5.7K
Responses to Heat and Cold Stress
13.3K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
13.3K


