山东农业科学2025，Vol.57Issue(12)：16-22,7.DOI:10.14083/j.issn.1001-4942.2025.12.003
小麦高抗性淀粉种质创制及其淀粉相关特性研究
New Wheat Germplasms Created with High Resistant Starch and Analysis on Their Starch Properties
摘要
Abstract
There are few wheat varieties with high-resistant starch available for wheat production,and the lack of excellent bridge materials with high-resistant starch is the key problem.In view of this situation,this study focused on creating this kind materials by hybridization and backcross to transfer the high-resistant starch gene from'195172'into the common wheat'Jimai 22'background,and then the field identification and analysis of starch characteristics were carried out for many years,simultaneously the resistant starch con-tent and agronomic traits were used for selection.The results showed that 17 advanced lines with resistant starch content higher than 5%were obtained in 2023,and the highest resistant starch content was up to 8.90%,more than 20 times of that of common wheat'Jimai 22'.Analysis of starch chain length distribution revealed that the content of resistant starch was positively correlated with the area percentage of Peak 3(the amylose and few hyper-amylopectin main chain);the percentage of Peak 3 area increased with the increase of resistant starch content,and the percentage of Peak 3 area in the progenies with resistant starch content higher than 5.0%was significantly higher than those with resistant starch content lower than 5.0%,which indicated that the starch chain length,especially the amylose chain length,determined the content of resistant starch.All these would provide breeding materials with excellent comprehensive characters and data support for the breeding of wheat varieties with high-resistant starch.关键词
小麦/抗性淀粉/淀粉链长/杂交/回交Key words
Wheat(Triticum aestivum L.)/Resistant starch/Starch chain length/Hybridization/Back-cross分类
农业科技引用本文复制引用
刘爱峰,韩冉,程敦公,李豪圣,宋健民,刘成,曹新有,刘建军..小麦高抗性淀粉种质创制及其淀粉相关特性研究[J].山东农业科学,2025,57(12):16-22,7.基金项目
山东省重点研发计划项目(2025CXPT027) （2025CXPT027）
泰山学者工程专项经费项目(tspd20221108) （tspd20221108）
济南市"新高校20条"项目(202228067) （202228067）
中央引导地方科技发展专项资金项目(YDZX2022145) （YDZX2022145）
