Li Fangdi, Fang Hongfeng, Zhou Jie, Hu Shunkai, Cao Fuliang, Guo Qirong
Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry and Grassland College of Soil and Water Conservation, Nanjing Forestry University, Nanjing, China.
Zhejiang Modern State-Owned Forest Farm, Longshan Forest Farm, Anji, Zhejiang, China.
Front Plant Sci. 2025 May 15;16:1532058. doi: 10.3389/fpls.2025.1532058. eCollection 2025.
Moso bamboo () is widespread in natural forests over large areas in China.
Here we collected 193 individuals of moso bamboo from 37 natural populations in China's distribution area. Genotyping by sequencing (GBS) was employed to elucidate the genetic diversity, genetic structure, selection pressure, history and adaptive distribution prediction of moso bamboo.
The results revealed that the moso bamboo in China can be divided into central α, eastern β and southern γ subpopulations, with the α-subpopulation presumed to be the origin center. Notably, the genetic diversity of moso bamboo populations were relatively low, and the heterozygotes were excess. At the subpopulation level, the genetic diversity of α-subpopulation was the highest and that of β-subpopulation was the lowest. Analysis of population selection pressure during the transmission of moso bamboo indicated significant genetic differences among subpopulations. Furthermore, 3681 genes related to adaptability, stress resistance, photosynthesis, and hormone were identified from the selected regions. Four SNP markers developed and validated. Based on the population dynamics history and distribution simulation, we found that the distribution of moso bamboo has been influenced by the climate change in geological history.
These findings hold significant implications for enhancing our genetic comprehension of bamboo populations and exploring germplasm resources.
毛竹在中国大面积天然林中广泛分布。
我们从中国分布区内37个自然种群中收集了193株毛竹个体。采用简化基因组测序（GBS）技术来阐明毛竹的遗传多样性、遗传结构、选择压力、历史以及适应性分布预测。
结果表明，中国的毛竹可分为中部α、东部β和南部γ亚种群，推测α亚种群为起源中心。值得注意的是，毛竹种群的遗传多样性相对较低，且杂合子过剩。在亚种群水平上，α亚种群的遗传多样性最高，β亚种群的最低。对毛竹遗传传递过程中的种群选择压力分析表明，亚种群间存在显著的遗传差异。此外，从选择区域中鉴定出3681个与适应性、抗逆性、光合作用和激素相关的基因。开发并验证了4个单核苷酸多态性（SNP）标记。基于种群动态历史和分布模拟，我们发现毛竹的分布受到地质历史时期气候变化的影响。
这些发现对于增进我们对竹类种群的遗传理解和探索种质资源具有重要意义。
