侵袭性足动物 (Eurytemora affinis) 种群复合体中盐度适应的基因组架构:一篇综述
1Department of Integrative Biology, University of Wisconsin, 430 Lincoln Drive, Birge Hall, Madison, WI 53706, USA.
iScience
|September 27, 2023
概括
气候变化正在改变息地,迫使诸如足虫Eurytemora affinis这样的入侵物种适应. 这篇评论强调了这种物种复合物如何反复演变类似的特征,为适应机制提供了洞察力.
科学领域:
- 生态生态学 生态生态学
- 进化生物学 进化生物学
- 遗传学 是一个遗传学.
背景情况:
- 全球气候变化正在导致息地盐度的快速变化.
- 淡水入侵物种通常来自盐水环境.
- 在全球范围内,copepod Eurytemora affinis物种群多次入侵淡水息地.
研究的目的:
- 审查Eurytemora affinis物种复合物的特征,以促进进化适应.
- 探索独立入侵事件中重复并行进化的背后的机制.
- 提供关于在不断变化的全球环境中适应潜力的见解.
主要方法:
- 审查关于Eurytemora affinis入侵和适应的现有文献.
- 来自独立入侵事件的遗传数据的分析.
- 检查人口结构和基因组架构.
主要成果:
- 自然选择在Eurytemora affinis的独立淡水入侵中一再偏爱相同的等位基因.
- 这种高度的并行进化对于多基因适应来说是意想不到的.
- 种群结构和基因组结构可能会推动快速适应和并行进化.
结论:
- 尤里特莫拉亲属物种群表现出了显著的进化潜力,能够适应快速的环境变化.
- 这种复杂物种的重复并行进化为其他系统相关的适应机制提供了洞察力.
- 了解这些原则对于预测和管理生物入侵和适应在不断变化的星球上至关重要.
相关概念视频
Responses to Salt Stress
13.2K
Salt stress—which can be triggered by high salt concentrations in a plant’s environment—can significantly affect plant growth and crop production by influencing photosynthesis and the absorption of water and nutrients.
13.2K
Osmoregulation in Fishes
49.8K
When cells are placed in a hypotonic (low-salt) fluid, they can swell and burst. Meanwhile, cells in a hypertonic solution—with a higher salt concentration—can shrivel and die. How do fish cells avoid these gruesome fates in hypotonic freshwater or hypertonic seawater environments?
49.8K
Hybrid 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
Genetics of Speciation
19.3K
Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.
19.3K


