外引水稻种质资源的品质评价与重要品质基因的基因型鉴定  

Rice Quality Evaluating and Key Quality Genes Genotyping of Rice Germplasm Resources from Africa and Brazil

作　　者：徐华山[1] 何卫 周雷[1] 刘凯[1] 杨小林[3] 游艾青[1,4] Xu Huashan;He Wei;Zhou Lei;Liu Kai;Yang Xiaolin;You Aiqing(Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement,Institute of Food Crops,Hubei Academy of Agricultural Sciences,Wuhan,430064;Graduate School of Wuhan University,Wuhan,430072;Institute of Plant Protection Soil and Fertilizer,Hubei Academy of Agricultural Sciences,Wuhan,430064;Hubei Collaborative Innovation Center for Grain Industry,Yangtze University,Jingzhou,434025)

机构地区：[1]湖北省农业科学院粮食作物研究所,粮食作物种质创新与遗传改良湖北省重点实验室,武汉430064 [2]武汉大学研究生院,武汉430072 [3]湖北省农业科学院植保土肥研究所,武汉430064 [4]长江大学,主要粮食作物产业化湖北省协同创新中心,荆州434025

出　　处：《分子植物育种》2021年第17期5891-5898,共8页Molecular Plant Breeding

基　　金：国家重点研发计划(2017YFD0100305);湖北省技术创新专项(2018ABA083);湖北省农业科学院青年基金(聚合抗稻瘟病及香味基因的优质稻新品种选育);农业部华中作物有害生物综合治理重点实验室/农作物重大病虫草害防控湖北省重点实验室开放基金课题(2018ZTSJJ12);湖北省农业科技创新中心项目(2018-620-003-001)共同资助。

摘　　要：优质是水稻育种中最重要的育种目标之一,引进和评价水稻种质资源的品质对于筛选优质稻亲本和选育优质稻品种具有重要意义。本研究从非洲和巴西引进了28份水稻种质资源,在湖北武汉对这些种质资源进行了品质鉴定。结果表明,这些种质资源的加工品质和外观品质表现优异,但蒸煮食味品质较差。从中筛选出13份优质稻种质资源。不同品质性状间的相关性分析表明,加工品质、外观品质和蒸煮食味品质的相关性较低。对种质资源的GS3、Wx和ALK进行基因型鉴定,发现GS3和Wx均含有2种基因型,ALK含有3种基因型。其中Wx和ALK不同基因型之间的表型存在显著差异。研究结果将为优质稻育种提供重要的种质资源、基因资源和标记资源。High quality is one of the most objectives in rice breeding, and introducing and evaluating the quality of rice germplasm are very important for screening novel parents with high quality and breeding high quality varieties. In this study, a total of 28 rice germplasm from Africa and Brazil were evaluated their milling quality,appearance quality and cooking and eating quality in Wuhan City, Hubei Province. The results showed the milling quality and appearance quality of most varieties were very high, but the cooking and eating quality of them were bad. Finally, 13 varieties with high quality were screened. The correlation analysis indicated that different traits among milling quality, appearance quality and cooking and eating quality had low correlation between each other.Further, all germplasm was genotyping three important quality genes, GS3, Wx and ALK. There were two genotypes in each of GS3 and Wx, and ALK had three genotypes. The phenotypes showed significant difference between different genotypes for both Wx and ALK. The results in this study will give valuable germplasm resources,gene resources and marker resources for breeding high quality rice varieties.

关 键 词：种质资源 品质 基因型 

分 类 号：S511[农业科学—作物学]