Gao Xiaoge, Jiang Peishuo, Hu Yaping, Zhang Tianhe, Li Fangdi, Guo Qirong
Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China.
Key Laboratory of Plant Innovation and Utilization, Institute of Subtropical Crops of Zhejiang Province, Wenzhou, 325005, China.
BMC Plant Biol. 2025 Oct 1;25(1):1264. doi: 10.1186/s12870-025-07278-z.
Ginkgo biloba L. is a dioecious plant with a life history of billions of years, and hybridization is one of its main forms of generation replacement in nature. The traditional hybridization research of ginkgo is relatively weak, and previous work has ignored the genetic distance between parental selection, relying solely on subjective human selection, making it difficult to maximize the utilization of genetic variation in ginkgo hybridization.
The results indicate that maternal genotype has a significant impact on seed morphogenesis and accumulation of toxic components; The influence of the paternal parent is stronger in the inheritance of resistance related substances; The F generation showed a super parental advantage in photosynthetic parameters, and growth and development were significantly positively correlated with photosynthetic efficiency.
This study reveals the differentiation patterns in maternal vs. paternal inheritance in ginkgo hybridization, providing physiological bases for the selection of medicinal varieties, development of stress resistant strains, and optimization of photosynthetic traits. It has important practical significance for improving the industrial utilization efficiency of ginkgo resources.
银杏是一种雌雄异株植物，有着数十亿年的生命历史，杂交是其在自然界中主要的世代更替形式之一。银杏传统的杂交研究相对薄弱，以往工作忽视了亲本选择中的遗传距离，仅依靠人为主观选择，难以在银杏杂交中最大限度地利用遗传变异。
结果表明，母本基因型对种子形态发生和有毒成分积累有显著影响；父本在抗性相关物质的遗传中影响更强；F代在光合参数方面表现出超亲优势，生长发育与光合效率显著正相关。
本研究揭示了银杏杂交中母本与父本遗传的分化模式，为药用品种选育、抗逆品系培育及光合性状优化提供了生理依据。对提高银杏资源的产业利用效率具有重要现实意义。
