珙桐分子生物学研究进展

Research advances in molecular biology of Davidia involucrata

珙桐是珍稀的第三纪孑遗树种,也是优良的用材兼园林绿化树种。开展珙桐研究,不仅具有重大科学意义,而且具有重要的经济和生态价值,但珙桐的分子生物学研究进展相对缓慢。该文从分子标记、遗传多样性、败育基因和抗胁迫基因等方面对珙桐树种的分子生物学研究进展进行综述,并就当前亟需解决的问题进行讨论,以期为加快分子生物学技术在珙桐乃至其他树种研究中的应用提供参考。

Davidia involucrata,a relic species of the Tertiary,is one of the most important afforestation and ornamental tree species. Davidia research has scientific significance as well as great economic and ecological benefits. However,research in molecular biology of Davidia has advanced slowly. This review summarizes the research progress in molecular biology of D.involucrata from the aspects of molecular marker,genetic diversity,abortive gene and stress resistant gene. The problems to be solved are proposed and discussed for accelerating the application of molecular biological technologies in D. involucrata and other tree species.