摘要
培育和种植抗黄曲霉品种是防控花生黄曲霉毒素污染最为经济有效的途径,而黄曲霉抗性与高产的矛盾一直是花生抗黄曲霉育种的障碍。本研究以抗黄曲霉花生种质J11与高产品种中花16为亲本构建的重组自交系群体(Recombined inbreed lines, RILs)为材料,进行黄曲霉侵染和产毒抗性鉴定,探讨抗性与高产(大果)性状重组聚合的潜力。结果表明,RIL群体籽仁的黄曲霉侵染指数变异范围为28.8%~100%,毒素含量变异范围为34.82~358.84μg/g,侵染指数与抗病亲本J11相当的家系(抗侵染)8个,毒素含量低于J11的家系(抗产毒)9个,其中QT1068、QT1107家系兼具侵染和产毒抗性。结合前期该群体荚果大小的鉴定结果,获得1份兼抗侵染和产毒且百果重(196.9 g)达到大花生标准的特异材料。本研究初步揭示了花生黄曲霉抗性与大果高产性状重组聚合的潜力,为培育高产抗黄曲霉花生品种奠定了理论和材料基础。
Breeding and application of peanut cultivars with desirable resistance to Aspergillus flavus is crucial for integrated management of aflatoxin contamination. Most peanut germplasm lines identified as resistant to A. flavus infection or aflatoxin production possess small pod or seed with relatively low yield potential. In this study, a total of 188 recombinant inbreed lines(RILs) population derived from Zhonghua 16 × J11 were assessed for their resistance to A. flavus infection and consequent aflatoxin production. The yield-related traits including 100-pod weight and 100-seed weight were also investigated among the RILs. The results revealed that variations of percent seed infection index(PSII) and aflatoxin content(AFT) in the RILs were much wider than those of their two parents.Eight lines with resistance to seed infection, nine lines with resistance to aflatoxin production were identified from the RILs. A special line with large pod and resistance to both seed infection and aflatoxin production was identified,which could be potential for further resistance improvement in peanut.
作者
蒋艺飞
喻博伦
丁膺宾
陈伟刚
郭建斌
陈海文
罗怀勇
刘念
黄莉
周小静
姜慧芳
雷永
晏立英
康彦平
姜成红
廖伯寿
JIANG Yi-fei;YU Bo-lun;DING Ying-bin;CHEN Wei-gang;GUO Jian-bin;CHEN Hai-wen;LUO Huai-yong;LIU Nian;HUANG Li;ZHOU Xiao-jing;JIANG Hui-fang;LEI Yong;YAN Li-ying;KANG Yan-ping;JIANG Cheng-hong;LIAO Bo-shou(Oil Crops Research Institute,Chinese Academy of Agricultural Sciences,Wuhan 430062,China;Yichang Acad-emy of Agricultural Sciences,Yichang 443004,China)
出处
《中国油料作物学报》
CAS
CSCD
北大核心
2022年第1期72-77,共6页
Chinese Journal of Oil Crop Sciences
基金
国家花生产业技术体系(CARS-13)
农作物种质资源保护项目(2020NWB033)
花生种质资源共享服务平台项目(NCGRC-2020-036)。
关键词
花生
RIL群体
黄曲霉抗性
大果
peanut
recombined inbreed lines(RILs)
resistance to aflatoxin contamination
large pod
