关键词: 向日葵；再生体系；遗传转化；转基因

Abstract:

Sunflower (Helianthus annuus L.) is one of the 4 major oil crops in the world, and has good adaptability, aridity tolerance, etc. excellent characteristics. With the effect of global environment and climate changes on agroecosystems, the daily increasing usage of sunflower is expanding. The breeding objectives of sunflower have been drought and salt tolerance, insect and disease resistance and superior quality. But these higher breeding objectives are difficult to achieve through conventional breeding method in a short period of time. While the molecular breeding taking modern biotechnology as its method has provided a convenient and practical way to culture and improve new varieties of sunflower. This paper reviewed and summarized the progresses made during the past over 20 years in sunflower in vitro regeneration, genetic transformation and transgenic researches. It also analyzed the existing problems in sunflower genetic engineering research, and prospected the development trends of this research.

Key words: sunflower (Helianthus annuus L.), regeneration, genetic transformation, transgenic