| Tobacco germplasm resources are the material basis for original innovation and new variety breeding of
tobacco and the industrialization of biotechnology. It is a strategic resource to ensure the safety of tobacco production and
is of great significance to the sustainable development of tobacco in China. The effectiveness of original innovation and new
variety selection of tobacco as well as the biotechnology industrialization depends on the quantity of germplasm resources
obtained and the quality of researches on their differential traits and genetic laws, while breakthrough progress often depends
on special germplasm resources discovery and utilization. Due to the rich genetic diversity of tobacco germplasm resources,
wide research contents, diverse modulation types, and the characteristics of public welfare, basicity and non-renewability,
related research work has a long way to go. In order to understand the research status of tobacco germplasm resources,
this article describes the basic situation of tobacco germplasm resources collection and preservation at home and abroad,
introduces the research progress of tobacco germplasm resources classification, identification and evaluation, and germplasm
creation and utilization and summarize the aroma style formation and variety selection of local tobacco germplasm resources in the ecological environment of Guangdong. On this basis, prospects are made for the current germplasm resources breeding
and renewal, precise identification, genetic population research and germplasm creation. |
