Photosynthesis is the gateway of the Sun's energy into the biosphere and the source of the ozone layer; thus it is both provider and protector of life as we know it. Despite its pivotal role we know surprisingly little about the genetic basis of variation in photosynthesis and the selective pressures giving rise to or maintaining this variation. In this review, I will briefly summarise our current knowledge of intraspecific and interspecific variation in photosynthesis to understand the main selective constraints on photosynthesis and what this means for the future of nature and agriculture in a changing world.

中文翻译：

---

利用自然变异来了解植物光合作用的进化压力。

光合作用是太阳能量进入生物圈的通道，也是臭氧层的来源。因此，众所周知，它既是生命的提供者又是生命的保护者。尽管起着举足轻重的作用，但我们对光合作用变化的遗传基础以及引起或维持这种变化的选择性压力的了解却很少。在这篇综述中，我将简要总结我们目前对光合作用种内和种间变异的了解，以了解对光合作用的主要选择性限制，以及这对不断变化的世界中自然和农业的未来意味着什么。