摘要
【目的】选育优质常规早稻新品种供推广种植,促进常规早稻品种更新换代,并研究新育成品种泉珍12号与其双亲的遗传相似性及多态性差异。【方法】以佳辐占为母本、榕籼1号为父本进行杂交,经系谱选育成的泉珍12号,于2017—2018年参加福建省早稻区域试验,2018年同步进行生产试验。以48对SSR引物对泉珍12号及其亲本的基因组DNA进行SSR分析,研究泉珍12号及其双亲的遗传相似性及多态性差异。【结果】2年区域试验,泉珍12号平均产量为7557.6 kg·hm^(-2),比对照杂优品种T78优2155增产1.82%;生产试验平均产量为6694.05kg·hm^(-2),比T78优2155减产6.83%;米质达部颁二等优质食用稻品种标准。2019年通过福建省农作物品种审定委员会审定(闽审稻20190002)。多态性分析结果表明,泉珍12号与母本佳辐占共显性条带为20条,遗传相似系数为0.625;与父本榕籼1号共显性条带为12条,遗传相似系数为0.375。【结论】育成的优质早稻新品种泉珍12号米质好,株高较矮,适宜在福建省早季种植。泉珍12号在形态特征及亲缘关系上更倾向于母本佳辐占。
【Objective】An early season indica rice with excellent grain quality was bred through sexual hybridization between pedigrees and planted in regional trials for performance determination.Its genetic diversity and polymorphism were compared with the parents’.【Method】Hybridization of the new rice was carried out using Jiafuzhan as the female parent and Rongxian 1 as the male parent.The resulting cultivar was submitted to the regional trials in Fujian for new early rice varieties evaluation in 2017–2018 and simultaneously tested for production in 2018.Genetic diversity of the new cultivar and its parents based on the 48 pairs of identified SSR markers distributed in the 12 chromosomes of rice were compared.【Result】In the provincial 2017–2018 regional trial,the newly bred Quanzhen 12 delivered an average yield of 7557.6 kg·hm^(-2),i.e.,1.82%higher than that of the reference,T78 you 2155.However,its production yield in 2018 trial was 6.83%lower at 6694.05 kg·hm^(-2).The grain quality of Quanzhen 12 was judged to be Grade 2 for edible rice according to the standard set forth by the Ministry of Agriculture.The variety was approved and released by Fujian Province Committee of Crop Variety Identification.The SSR makers showed the genetic similarity between Quanzhen 12 and Jiafuzhan to be 0.625,and between Quanzhen 12 and Rongxian 1 to be 0.375.【Conclusion】A new high-quality,short Quanzhen 12 was successfully bred.From the performances at the trials,it was considered suitable for early season planting in the province.Quanzhen 12 and Jiafuzhan appeared to have a close phylogenetic relationship.
作者
陈锦文
谢旺有
谢少和
魏毅
王天生
陈惠清
庄卫东
余文昌
CHEN Jinwen;XIE Wangyou;XIE Shaohe;WEI Yi;WANG Tiansheng;CHEN Huiqing;ZHUANG Weidong;YU Wenchang(Quanzhou Agricultural Sciences Institute,Jinjiang,Fujian 362212,China)
出处
《福建农业学报》
CAS
CSCD
北大核心
2021年第4期379-385,共7页
Fujian Journal of Agricultural Sciences
基金
福建省科技引导性项目(2018N0050、2019N0051)
福建省科技星火项目(2020S0031)
2020年度福建省现代农业水稻产业技术体系建设项目(闽农科教函[2020]590号)。
关键词
优质稻
泉珍12号
选育
遗传分析
High-quality rice
Quanzhen 12
breeding
genetic analysis
作者简介
陈锦文(1984-),男,硕士,助理研究员,研究方向:水稻抗病育种(E-mail:tankim@126.com);通信作者:谢旺有(1973-),男,副研究员,研究方向:水稻新品种选育(E-mail:381486312@qq.com)。
