在Causonis (Vitaceae) 的广泛和狭窄的谱系中显著的杂交模式
Jinren Yu1,2,3, Hong Zhao4, Yanting Niu2
1State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China.
BMC biology
|October 8, 2023
概括
在Causonis属中,杂交和全基因组复制 (WGD) 解释了对比的物种分布范围. 这项研究揭示了这些事件如何塑造生物多样性,并为C. japonica和C. ciliifera等物种的保护策略提供了信息.
科学领域:
- 进化生物学 进化生物学
- 基因组学就是基因组学.
- 生物多样性研究 生物多样性研究
背景情况:
- 对比物种分布模式是理解生物多样性动态的关键.
- 杂交和全基因组重复 (WGD) 可以影响物种的分布范围.
- 维塔科属Causonis表现出多样化的分布范围,衍生血统比早期分离的更广泛,这表明杂交和WGD的作用.
研究的目的:
- 探索与相反的物种分布范围的Causonis血统中的不同杂交和多化模式.
- 调查Causonis的进化历史,包括潜在的杂交和WGD事件.
- 为了建模气候变化对Causonis属内物种分布的影响.
主要方法:
- 使用塑和核数据的密集采样进行基因组学分析.
- 检测和分析细胞核异调和核基因树冲突.
- 推断全聚类起源和基因流动的推断.
- 根据当前的气候变化情景来建模物种分布.
主要成果:
- 遗传学分析揭示了Causonis.内显著的细胞核异调.
- 基因流被确定为核基因树冲突的主要原因,特别是在日本-角类.
- 核心的Causonis物种起源于全聚化,导致了与压力相关的基因的积累.
- 考索尼斯起源于亚洲大陆,其多样化受到过去的气候事件的影响,如冰川和米奥森气温下降.
- 种类分布模型预测C. japonica是入侵性的,而C. ciliifera在气候变化下面面临灭绝的风险.
结论:
- 考索尼斯作为一种模型来理解杂交和WGD模式如何在具有对比的地理范围的血统中不同.
- 考索尼斯的复杂的网状进化历史强调了在保护策略中考虑特定的进化历史和遗传特性的重要性.
- 保护工作必须考虑到气候变化对C. japonica和C. ciliifera等物种的预测影响.
相关概念视频
02:29Hybrid Zones
17.1K
Hybrid zones are narrow regions where two closely related species interact, mate, and produce hybrids. Relative to either parent species, hybrids may possess distinct phenotypic or genetic differences that impact their survival and reproductive success. The genetic variances introduced by hybridization influence species diversity and speciation processes within the hybrid zone.
17.1K
01:18Dihybrid Crosses
75.0K
Overview
75.0K
02:27Trihybrid Crosses
23.4K
Trihybrid Crosses
Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal...
Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal...
23.4K
01:17What is a Species?
44.2K
Overview
44.2K
02:31In-situ Hybridization
9.4K
In situ hybridization (ISH) is a technique used to detect and localize specific DNA or RNA molecules in cells, tissue, or tissue sections using a labeled probe. The technique was first used in 1969 for the investigation of nucleic acids. It is currently an essential tool in scientific research and clinical settings, especially for diagnostic purposes.
Types of probes and labels
A probe is a complementary strand of DNA or RNA that binds to corresponding nucleotide sequences in a cell. Many...
Types of probes and labels
A probe is a complementary strand of DNA or RNA that binds to corresponding nucleotide sequences in a cell. Many...
9.4K
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