Breeding of newly licensed wheat variety Huapei 8 and improved breeding strategy by anther culture

文献类型： 外文期刊

第一作者： Kang Ming-hui

作者： Kang Ming-hui;Hai Yan;Huang Bing-yan;Zhao Yong-ying;Wang Shi-jie;Miao Li-juan;Zhang Xin-you

作者机构：

关键词： Triticum aestivum;anther culture;rear earth elements;chromosome doubling;wheat breeding

期刊名称：AFRICAN JOURNAL OF BIOTECHNOLOGY （ 影响因子：0.573； 五年影响因子：0.794 ）

ISSN： 1684-5315

年卷期： 2011 年 10 卷 85 期

页码：

收录情况： SCI

摘要： Wheat breeding by anther culture has the advantage of reducing breeding time, as well as high efficiency and accuracy in progeny selection. However, low percentage of callus induction, green plantlet regeneration and chromosome doubling of the haploid regenerants has limited its practical application. We improved the techniques in consideration of the three key steps by adjusting the sowing date of donor wheat, adding rare earth elements (REE) to the differentiation medium, and improving the chromosome doubling method. On the average, the induction rate of callus reached 8% for all the genotypes inoculated in the annual breeding. The regeneration rate and percentage of fertile regenerants were above 25 and 80%, respectively. We also designed a specific breeding strategy for anther culture by focusing on the genotypic constitution of the parents, their combination type and the progeny selection method. H-2 was the best selection generation for traits with high heredity ability, and H-3 was the best selection for grain traits and yield test. Consequently, we bred and licensed six new wheat varieties derived from anther culture and significantly reduced breeding time to three to five years. Huapei 8 was the newest released wheat variety bred by anther culture with superior agronomic characters, high yield potential and wide adaptability.

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