近日,中科院华南植物园科学家在喀斯特植物基因组大小的进化及环境适应研究方面取得重要进展。相关研究在线发表于《新植物学家》杂志上。物种基因组大小的进化包括适应性和非适应性等多种机制,但不同机制在基因组大小进化过程中的重要性却存在争议。报春苣苔属是我国华南喀斯特地区物种多样性异常丰富的特有类群,又由于该属植物具有强烈的生境专化性,因而是一个研究基因组大小进化及环境适应的理想系统。 Recently, scientists from the South China Botanical Garden of Chinese Academy of Sciences made important progress in the study of the evolution of the genome size of karst plants and their adaptation to the environment. Related research online in the new botanist magazine. The evolution of species genome size includes a variety of mechanisms such as adaptive and non-adaptive, but the importance of different mechanisms in the evolution of genome size is controversial. Primula genus is an endemic taxa rich in species diversity in the karst region of South China and an ideal system for studying the evolution of genome size and adaptation to the environment because of its strong habitat specificity.