摘要
林木良种无性繁殖已成为良种利用和已衰老良种更新的必由之路,不同无性繁殖方式产生的个体在生理年龄与实际年龄有着不同程度的差异,这可能导致通过现有复幼方法获得的个体,在长期的使用中存在早衰和老化等风险。本研究通过总结比较不同复幼繁殖方式,首先对根萌方式的发生机制进行概述,然后对根萌与其他繁殖方式中的优势,根萌繁殖个体在幼态维持及幼化程度的能力进行了综述,最后展望了根萌繁殖的研究前景以及讨论了在研究中存在的问题,以期为进一步揭示林木复幼的调控机理,为今后更好地利用林木复幼特性,制定最佳的林木复幼利用策略奠定基础。
The clonal propagation of improved tree varieties has become the only way for the utilization of improved varieties and the aging regeneration.Individuals produced by different clonal propagation methods have different physiological age and actual age,which may lead to the risk of premature aging and aging in the long-term use of the existing rejuvenation methods.By summarizing and comparing different methods of rejuvenation propagation,this paper first summarizes the occurrence mechanism of root sprouting,and then summarizes the advantages of root sprouting and other reproductive methods,and the ability of individuals of root sprouting to maintain their juvenile state and the degree of juvenilization.Finally,the research prospect of root sprouting reproduction is prospected and the existing problems in the research are discussed in order to further reveal the regulation mechanism of forest tree rejuvenation.The purpose of this paper is to lay a foundation for making better use of the characteristics of forest rejuvenation and formulating the best strategy for forest rejuvenation utilization in the future.
作者
刘杰
孙宇涵
袁存权
李云
Liu Jie;Sun Yuhan;Yuan Cunquan;Li Yun(National Engineering Laboratory for Tree Breeding,Engineering Technlology Research Center of Robinia Pscudoacacia of National Forestry and Grssland Adminisraion,Beijing Advanced lnmnovation Center for Tree Breeding by Molecular Design,Beijing,100083;Beijing Key Laboratory of Omamental Plants Germplasm Inovation&Molecular Breeding,National Engineering Research Center for Floriculture,Beijing Forsty Universily,Beijing,100083)
出处
《分子植物育种》
CAS
北大核心
2022年第14期4867-4872,共6页
Molecular Plant Breeding
基金
国家自然科学基金面上项目(31971675)
“十三五”国家重点研发计划子课题(2017YFD0600503)
北京林业大学青年教师科学研究中长期项目(2015ZCQ-SW-03)共同资助。
关键词
林木
无性繁殖
复幼
根萌
Trees
Clonal propagation
Rejuvenation
Root-sprout
作者简介
通信作者:李云,yunli@bjfu.edu.cn。
