Journal of Changshu Institute of Technology2024，Vol.38Issue(2)：57-62,6.
水稻种质资源农艺性状评价和基因型鉴定
Evaluation of Agronomic Traits and Genotype Identification of Rice Germplasm Resources
摘要
Abstract
In order to improve the efficiency and level of rice breeding in Suzhou, 18 germplasm resources introduced and improved by Changshu Agricultural Science Research Institute were identified and analyzed for important agronomic traits and genetic basis. The results show that these 18 rice germplasm resources are basically the short grain type, and that the grain type, grain weight, brown rice rate, and milled rice rate are relatively close with little deviation. Except for Zhendao 6914 and Changjing 22-4, the seed-setting rate of other germplasm materials is basically over 90％. Eight of them contain Badh2 gene which is responsible for rice flavor. Seen from the amylose content analysis, Wuxiangjing 5245, Nanjing 46 and Changxiangjing 1813 are fragrant soft rice varieties, Quanxiangnuo 3 and Yinxiang 38 are fragrant glutinous rice varieties, while Changjing 20-13 and Ningxiangjing 11 are fragrant japonica rice varieties. Based on the 12 reported rice blast resistance gene analysis, 16 of the germplasms basically contain more than two resistance genes, while none is detected in Jia 58 or Nan Jing 46. Moreover, Changxiangjing 1813 contains Pid2 and Pid3, while Changjing 22-4 contains Pita, Pid2, Pid3, Pita2, and Pik1-Pik2, revealing relatively better rice blast resistance after inoculation with rice blast fungus. These findings provide data support for an efficient and innovative utilization of germplasm resources, and are of great significance for improving breeding efficiency and accelerating the development of local seed industries.关键词
水稻/种质资源/农艺性状/基因型Key words
rice breeding/germplasm resource/agronomic traits/genotype identification分类
农业科技引用本文复制引用
陶菊红,李亚娟,季向东,柯瑷,张涛..水稻种质资源农艺性状评价和基因型鉴定[J].Journal of Changshu Institute of Technology,2024,38(2):57-62,6.基金项目
苏州市农业科技创新重点项目"粳稻优质高产抗逆基因精准鉴定与新品种(组合)创制选育"(SNG2022001) （组合）
苏州市农业科技创新关键技术应用研究项目"水稻优异种质资源创制和新品种(组合)选育"(SNG2021008) （组合）
常熟市科技发展计划项目"地方名特优水稻品种提纯应用及改良"(CN202102) （CN202102）
