利基范围的专业化影响了环境变化后的生态和进化适应
Cécile Gubry-Rangin1, Axel Aigle1,2, Leonel Herrera-Alsina1
1School of Biological Sciences, University of Aberdeen, 23 St Machar Drive, Aberdeen AB24 3UU, United Kingdom.
The ISME journal
|September 26, 2024
概括
专家和通用学家的生态理论在古生物学上得到了测试. 一般医生更好地适应环境变化,但在极端pH条件下,专家更常见.
科学领域:
- 生态生态学 生态生态学
- 微生物学 微生物学
- 进化生物学 进化生物学
背景情况:
- 生态理论将适应环境变化与生物的分布和丰富性联系在一起.
- 预计真核生物专家和通用学家将分别主宰极端环境和不断变化的环境.
- 这一理论在原核生物,特别是古生物中未得到充分研究,它们是全球生物地球化学循环的关键.
研究的目的:
- 测试Thaumarchaeota (古生物) 中专业化和泛性的生态概念.
- 为了研究考古生物适应环境变化,使用pH的宽度作为一个专业化指标.
- 探索在古物中普遍主义和专业主义之间的进化平衡.
主要方法:
- 在长期操纵的土壤地块中,经验性地确定了archaeal生长和活动对pH值干扰的反应.
- 在pH范围内的专家和全科医生分布的分析.
- 在进化历史上,研究了通用主义和专业主义策略之间的多样化和过渡率.
主要成果:
- 专家分布不均,更多地局限于极端的pH值范围.
- 一般医生比专家更容易适应环境变化,除非条件变得更加极端.
- 专家和通用主义者以相似的速度多样化,但从通用主义向专业主义的过渡比反过来更频繁.
结论:
- 这项研究提供了证据,证明了 prokaryotes,特别是 archaea 中的特异性和泛性生态概念.
- 古代生物表现出各种适应环境变化的策略,一般生物表现出更高的可塑性.
- 代谢特异性似乎比古生物的代谢多功能性更容易进化,影响它们的长期生态战略.
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