抗条纹叶枯病香稻新品种的分子标记辅助选育
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2016年度上海市农业科学院青年人才成长计划[沪农青字(2016)第12号];


Breeding of a New Rice Variety with RSDResistance and Fragrance by Molecular MarkerAssisted Selection
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    摘要:

    为解决上海主栽水稻品种普遍对条纹叶枯病缺乏抗性、大多数品种成熟期偏晚且食味品质不佳的状况,该研究以高产、广适性粳稻品种‘武运粳7号’为母本,与高抗条纹叶枯病水稻品系‘武2699’进行杂交,获得F1种子,再以早熟、香型优质品种‘太湖香粳’为父本,与(‘武运粳7号’ב武2699’)F1进行复交,开展聚合育种;并分别利用与水稻抗条纹叶枯病基因QSTV11b紧密连锁和香味控制基因Badh2共分离的分子标记,对分离世代进行辅助选择,筛选到含这2个基因的纯合基因型单株,结合田间抗性鉴定及香味测定,育成具有香味、高抗水稻条纹叶枯病、高产、优质等特点的早熟晚粳新品种‘沪香粳151’。

    Abstract:

    In order to solve the problem of susceptibility of rice stripe disease (RSD)long growth period and poor eating quality in the major rice cultivars in Shanghai, we crossed female parent ‘Wuyunjing 7’, a Japonica rice variety with high yield and wide adaptability, and ‘Wu 2699’, a Japonica rice strain with high RSDresistance. Subsequently, the F1 of (‘Wuyunjing 7’בWu 2699’) was crossed with male parent ‘Taihuxiangjing’, an earlymaturing and high quality Japonica rice variety. Genotypic detection of QSTV11b and the fragrance gene Badh2 was performed by using molecular markers, which linked to the RSDresistant gene QSTV11b and cosegregated with the fragrance gene Badh2, respectively. By associated with resistance identification and fragrance determination, a fragrant, earlymaturing, high RSDresistant, high yield and excellent eating quality Japonica rice variety named ‘Huxiangjing 151’ was obtained.

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闫 影,张丽霞,李 刚,等.抗条纹叶枯病香稻新品种的分子标记辅助选育[J].西北植物学报,2017,37(9):1736-1742

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  • 在线发布日期: 2017-10-23
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