Mapping QTLs Controlling Beneficial Fatty Acids Based on the Embryo and Maternal Plant Genomes in Brassica napus L.
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- 作者：Juan Wen ; Jianfeng Xu ; Yan Long ; Haiming Xu…
- 关键词：Brassica napus L. ; Fatty acid component ; Quantitative trait locus (QTL) ; Embryo nuclear genome ; Maternal plant nuclear genome
- 刊名：Journal of the American Oil Chemists' Society
- 出版年：2015
- 出版时间：April 2015
- 年：2015
- 卷：92
- 期：4
- 页码：541-552
- 全文大小：2,889 KB
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- 刊物主题：Chemistry
Industrial Chemistry and Chemical Engineering
Analytical Chemistry
Chemistry
Biotechnology
Biomaterials
Agriculture- 出版者：Springer Berlin / Heidelberg
- ISSN：1558-9331
文摘
This study was mainly carried out to detect the quantitative trait loci (QTLs) located simultaneously in embryo and maternal plant nuclear genomes for beneficial fatty acid contents of rapeseed under different environments by using a mapping model and mapping populations from a cross of ‘Tapidor’?×?‘Ningyou7.-Eight, three, six, seven and three QTLs respectively for palmitic, oleic, linoleic, linolenic and eicosenoic acid contents were identified and subsequently mapped on chromosomes A1, A3, A4, A6, A8, A9, C1, C3, C5, C7, C8 and C9. Among them, 12 QTLs were major ones that could respectively explain more than 10?% of phenotypic variation. Two specific genomic regions on A8 and C3 were associated with several QTLs relating to multiple fatty acid contents. Some of the markers such as HBr015 and JICB0633 showed tight linkage with the QTLs, which could be used for improving the fatty acid component(s) of rapeseed.