土壤与作物2018，Vol.7Issue(2)：177-183,7.DOI:10.11689/j.issn.2095-2961.2018.02.010
中国东北地区水稻抽穗期性状研究进展
Research progress on the Heading Date of rice in Northeast China
摘要
Abstract
Rice heading date ( HD) refers to the time from sowing to heading ( flowering ) .HD is one of the most important factors determining rice distribution and grain yield .HD, as a complex quantitative trait , is controlled by a number of genes and diverse envi-ronmental factors.In this review, we introduce two conserved flowering pathway , and the complex interaction among various HD genes in rice.We mainly describe the major and minor effect HD genes which control the rice distribution in Northeast China , and diverse haplotypes of each HD gene .We highlight that combination of different haplotype of multiple HD genes determine the rice distribution in Northeast China.In addition, we describe a CRISPR/cas9-mediated breeding technique by which the HD of cultivar can be efficiently shortened by mutating the heading date repressors genes , and adapted growth region of elite cultivar can move northward and planting area will be increased , simultaneously.This technique will facilitate to introduce new rice germplasms from South China to Northeast China.Based on the current situation of rice breeding and production in Northeast China , we propose to strengthen improving rice qual-ity and increasing growth area by combining molecular design breeding and conventional breeding in future .关键词
东北地区/水稻/抽穗期/自然变异Key words
Northeast China/rice/heading date/natural variation分类
农业科技引用本文复制引用
孙宇琪,卜庆云,程云清,田晓杰,王臻昱,任月坤,唐佳琦,李秀峰..中国东北地区水稻抽穗期性状研究进展[J].土壤与作物,2018,7(2):177-183,7.基金项目
国家重点研发专项(2017YFD0100501) （2017YFD0100501）
黑龙江省自然科学基金(ZD2015005). （ZD2015005）
