Advance in germplasm innovation and gene mining of high-oil maize

Meiyan Hong; Xiangxiang Zhang; Qiong Liu; Lixia Luo; Ruixing Guo

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Advance in germplasm innovation and gene mining of high-oil maize

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摘要

As one of the 3 worldwide major grain crops,maize is the main source of food,feed and edible vegetable oil.High-oil maize has been selectively bred for many years due to its high oil content and nutritional quality.However,compared with normal maize,the progress of high-oil maize breeding is hindered nowadays.Main problems are scarce of high-oil maize germplasm,conventional breeding methods,and slow genetic research progress on oil content and fatty acid composition.In this study,germplasm innovation and gene mining of high-oil maize were reviewed to provide theoretical reference for genetic breeding and utilization.Several high-oil basic populations have been developed after more than 100 years of selection,which have served as the unique resources for high-oil maize breeding.They have also been used to dissect genetic architecture of oil biosynthesis in maize kernel.Using linkage and association analyses,many QTLs and loci associated with oil content and fatty acid composition have been identified and mapped.In addition,some candidate genes for QTLs have been validated to regulate maize grain oil content and fatty acid composition.Prospect for high-oil maize was also discussed to provide knowledge about genetic mechanism of oil biosynthesis and improvement of kernel quality in maize.

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来源
《中国油料作物学报（英文版）》 |2018年第4期|P.236-246|共11页
作者
Meiyan Hong; Xiangxiang Zhang; Qiong Liu; Lixia Luo; Ruixing Guo;
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作者单位

[1]Key Laboratory of Biology and Genetic Improvement of Oil Crops;

Ministry of Agriculture;

Oil Crops Research Institute;

Chinese Academy of Agricultural Sciences;

Wuhan;

China;

[1]Key Laboratory of Biology and Genetic Improvement of Oil Crops;

Ministry of Agriculture;

Oil Crops Research Institute;

Chinese Academy of Agricultural Sciences;

Wuhan;

China;

[1]Key Laboratory of Biology and Genetic Improvement of Oil Crops;

Ministry of Agriculture;

Oil Crops Research Institute;

Chinese Academy of Agricultural Sciences;

Wuhan;

China;

[1]Key Laboratory of Biology and Genetic Improvement of Oil Crops;

Ministry of Agriculture;

Oil Crops Research Institute;

Chinese Academy of Agricultural Sciences;

Wuhan;

China;

[1]Key Laboratory of Biology and Genetic Improvement of Oil Crops;

Ministry of Agriculture;

Oil Crops Research Institute;

Chinese Academy of Agricultural Sciences;

Wuhan;

China;

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原文格式 PDF
正文语种 CHI
中图分类农业科学;
关键词
high-oil maize; germplasm; oil content; fatty acid; genetic research;

机译：高油玉米;种质;油含量;脂肪酸;遗传研究;

Advance in germplasm innovation and gene mining of high-oil maize

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