甘蓝型油菜高亚麻酸CMS的快速选育方法及效果研究  

CMS with High Linolenic Acid Content in Brassica napus L.:Rapid Breeding Method and Effect

作　　者：张耀文[1] 董育红[1] 关周博[1] 韦世豪[1] 李殿荣[1] 李少钦[1] 梁峰志 ZHANG Yaowen;DONG Yuhong;GUAN Zhoubo;WEI Shihao;LI Dianrong;LI Shaoqin;LIANG Fengzhi(Hybrid Rapeseed Research center of Shaanxi Province,Yangling,Shaanxi 712100)

机构地区：[1]陕西省杂交油菜研究中心,陕西杨凌712100

出　　处：《中国农学通报》2024年第9期30-36,共7页Chinese Agricultural Science Bulletin

基　　金：杨凌种业创新中心重点研发计划“油菜杂种优势利用与重大品种选育”(Ylzy-yc2021-3)。

摘　　要：为了加速甘蓝型油菜高亚麻酸杂交育种进程。以高亚麻酸油菜种质为试验材料,采用快速选育方法进行油菜高亚麻酸CMS及保持系的选育。结果表明:选育周期从5~6年缩短为4年,亚麻酸含量由11.85%提升至16.96%,含油量由45.0%提升至48.8%,单株亚麻酸产出量由0.98 g提升至1.53 g。与原CMS(陕6A)相比,“YM-1A”的含油量、单株产量、亚麻酸含量、异交结实系数、单株亚麻酸产量分别提高8.45%、4.49%、59.43%、12.8%、80.65%;而自交结实系数降低56.86%。因不育性、农艺、品质等性状显著提高,YM-1A在甘蓝型油菜高亚麻酸杂交育种中具有较高的利用价值。In order to speed up the cross breeding process of Brassica napus L.with high linolenic acid content,taking the rapeseed germplasm with high linolenic acid content as experimental materials,the CMS and its corresponding maintainer lines of Brassica napus L.with high linolenic acid content were breed by using the rapid breeding method.The results showed that the breeding period was shortened from 5 to 6 years to 4 years,the linolenic acid content was increased from 11.85%to 16.96%,the oil content was increased from 45.0%to 48.8%,and the linolenic acid output per plant was increased from 0.98 g to 1.53 g.Compared with the original CMS(SHAAN6A),the oil content,the yield per plant,the linolenic acid content,the outcrossing seed coefficient and the linolenic acid yield per plant of"YM-1A"were increased by 8.45%,4.49%,59.43%,12.8%and 80.65%,respectively,the coefficient of self-seed setting was decreased by 56.86%.Because the sterility,agronomy,quality and other traits had been significantly improved,YM-1A had the higher utilization value in cross breeding of Brassica napus L.with high linolenic acid content.

关 键 词：甘蓝型油菜 高亚麻酸CMS 快速选育 选育效果 

分 类 号：S565.4[农业科学—作物学]