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Establishment of a Highly Efficient Regeneration System for the Mature Embryo Culture of Wheat

文献类型： 外文期刊

作者： Yin Gui-xiang 1 ; Wang Yan-li 1 ; She Mao-yun 1 ; Du Li-pu 1 ; Xu Hui-jun 1 ; Ma Jing-xiu 2 ; Ye Xing-guo 1 ;

作者机构： 1.Chinese Acad Agr Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Key Lab Crop Genet & Breeding, Minist Agr,Inst Crop Sci, Beijing 100081, Peoples R China

2.Beijing Acad Agr & Forestry Sci, Beijing Hybri

关键词： wheat;mature embryo culture;scraping treatment;Adi medium;highly efficient regeneration

期刊名称：AGRICULTURAL SCIENCES IN CHINA （ 影响因子：0.82； 五年影响因子：0.997 ）

ISSN： 1671-2927

年卷期： 2011 年 10 卷 1 期

页码：

收录情况： SCI

摘要： Establishment of a highly efficient regeneration system for the mature embryo of wheat will provide a convenient tool for wheat tissue culture and transformation, thereby facilitating the transformation of foreign genes into wheat. By using the mature embryos derived from 20 different wheat lines including Shi 4185, Yumai 66, Lunxuan 987, CB037, Yangmai 6, Xinchun 9, Bobwhite, Han 6172, Zheng 9023, Jimai 20, Ningchun 4, and Jing 411, the effects of some factors including inoculation methods, initiating culture media, organic additives, antioxidants, and auxins on the regeneration from the explants were evaluated. The results indicated that the scraping embryo culture was better than the whole embryo culture, the Aa medium was better than the SD2 medium and dicamba was better than 2,4-D in increasing the regeneration frequency. An Adi medium was established in this study by adding silver nitrate, cysteine, ascorbic acid, dicamba, glutamine into the Aa medium at the concentration of 4, 40, 100, 2, and 5 mg L(-1), respectively. By using the Adi medium and the scraping technique, the regeneration frequencies of the mature embryos of CB037, Lunxuan 987, Han 6172, Yangmai 6, Bobwhite, Zheng 9023, Shi 4185, and Jimai 20 became 85.6, 60.1, 46.0, 42.1, 42.0, 34.0, 33.0, and 32.0%, respectively, which were about 5-8 times higher than that obtained from the conventional culture mediums and techniques. This novel regeneration system could be helpful in wheat transformation.

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