寒地早粳稻牡育稻42系谱构建及遗传基础解析  

Pedigree Tree Construction and Genetic Basis Analysis of Early Japonica Rice Variety‘Muyudao 42’in Cold Region

作　　者：李洪亮[1] 孙玉友[1] 魏才强[1] 解忠[1] 程杜娟[1] 姜龙[1] 曲金玲[1] 宋泽 刘春光[1] 徐德海[1] 王丽[1] 时新瑞[1] LI Hongliang;SUN Yuyou;WEI Caiqiang;XIE Zhong;CHENG Dujuan;JIANG Long;QU Jinling;SONG Ze;LIU Chunguang;XU Dehai;WANG Li;SHI Xinrui(Mudanjiang Branch of Heilongjiang Academy of Agricultural Sciences,Mudanjiang Heilongjiang 157041,China)

机构地区：[1]黑龙江省农业科学院牡丹江分院,黑龙江牡丹江157041

出　　处：《种子》2021年第4期34-38,共5页Seed

基　　金：国家重点研发计划粮食丰产增效科技创新工程项目(2018 YFD 0300105-3-2);黑龙江省农业科学院科研计划项目(2019 CGJL 005,2019 JJPY 016,2020 FJZX 016);现代农业产业技术体系建设专项(CARS-01-55);黑龙江省应用技术研究与开发计划重大项目(GA 18 B 101);黑龙江省农业科学院“农业科技创新跨越工程”专项——寒地水稻种质资源创制与应用(HNK 2019 CX 02)。

摘　　要：牡育稻42是黑龙江省农业科学院牡丹江分院选育的寒地早粳高产型新品种,具有早熟、高产、优质、抗病、抗倒、耐寒等优点。本试验对牡育稻42的亲本进行追溯并构建系谱图,分析其亲本主要特性及核遗传贡献率,揭示遗传演化历程,为水稻育种亲本的选择和利用提供参考。结果表明,牡育稻42属于龙粳长粒香细胞质家族,传递途径为:龙粳长粒香→牡00-1066→牡育稻42。核遗传物质由祖先亲本龙粳长粒香、富士光、台中27、高雄53、北海84、色江克、合选58、农林11、下北、笹锦、奥羽239、曲系17、藤系117、石狩白毛和虾夷按不同比例共同提供,核遗传贡献率分别为25%、37.5%、0.5859375%、0.5859375%、0.5859375%、2.34375%、4.6875%、0.5859375%、2.34375%、2.34375%、2.34375%、4.6875%、9.375%、1.171875%和5.859375%。亲本选择时,要注重母本在当地的适应性,而父本则应具有地理远缘或生态远缘的基因血缘;遗传基础狭窄是寒地稻区水稻育种取得新突破的主要限制因素。The Muyudao 42 was a new early japonica variety with high yield in cold region bred by Mudanjiang Branch of Heilongjiang Academy of Agricultural Sciences,and it had the advantages of early maturity,high yield,good quality,disease resistance,lodging resistance and cold resistance.In this study,the parents of Muyudao 42 were traced back and the pedigree was constructed to analyze the main characteristics and nuclear genetic contribution rate of the parents,revealing the genetic evolution process,and providing reference for the selection and utilization of rice breeding parents.The results showed that the Muyudao 42 belonged to cytoplasmic family of Longjingchanglixiang,and the transmission route was as follows Longjingchanglixiang→Du 00-1066→Muyudao 42.The nuclear genetic material was provided by the ancestral parents Longjingchanglixiang,Fushiguang,Taizhong 27,Gaoxiong 53,Beihai 84,Sejiangke,Hexuan 58,Nonglin 11,Xiabei,Tijin,Aoyu 239,Quxi 17,Tengxi 117,Shishoubaimao and Xiayi in different proportions,and the nuclear genetic contribution rates were 25%,37.5%,0.5859375%,0.5859375%,0.5859375%,2.34375%,4.6875%,0.5859375%,2.34375%,2.34375%,respectively,2.34375%,4.6875%,9.375%,1.171875%and 5.859375%respectively.The selection of parents should pay attention to the adaptability of the mother in the local area,while the father should have the genetic consanguinity of geographical or ecological distance.In conclusion,the narrow genetic base is the main limiting factor for new breakthroughs in rice breeding in cold region.

关 键 词：水稻 牡育稻42 系谱构建 祖先亲本 遗传贡献率 

分 类 号：S511[农业科学—作物学]