Abstract
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.
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Acknowledgments
The project was financially supported by the Zhejiang Provincial Key Laboratory of Crop Germplasm Resources, Foundation for University Key Teachers of the Ministry of Education of China, and by the 151 Program for the Talents of Zhejiang Province. We thank A. Quampah for making good suggestions when revising this paper.
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Wen, J., Xu, J., Long, Y. et al. Mapping QTLs Controlling Beneficial Fatty Acids Based on the Embryo and Maternal Plant Genomes in Brassica napus L.. J Am Oil Chem Soc 92, 541–552 (2015). https://doi.org/10.1007/s11746-015-2618-3
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DOI: https://doi.org/10.1007/s11746-015-2618-3