Ivarson Emelie, Leiva-Eriksson Nélida, Ahlman Annelie, Kanagarajan Selvaraju, Bülow Leif, Zhu Li-Hua
Department of Plant Breeding, Swedish University of Agricultural Sciences Alnarp, Sweden.
Department of Pure and Applied Biochemistry, Lund University Lund, Sweden.
Front Plant Sci. 2017 Jan 9;7:2032. doi: 10.3389/fpls.2016.02032. eCollection 2016.
The wild species field cress (), belonging to the Brassicaceae family, has potential to be developed into a novel oilseed- and catch crop, however, the species needs to be further improved regarding some important agronomic traits. One of them is its low oil content which needs to be increased. As far as we know there is no study aiming at increasing the oil content that has been reported in this species. In order to investigate the possibility to increase the seed oil content in field cress, we have tried to introduce the () or hemoglobin () genes from either () or () into field cress with the seed specific expression. The hypothesis was that the oil content would be increased by overexpressing these target genes. The results showed that the oil content was indeed increased by up to 29.9, 20.2, and 25.9% in the transgenic lines expressing , and , respectively. The seed oil composition of the transgenic lines did not significantly deviate from the seed oil composition of the wild type plants. Our results indicate that genetic modification can be used in this wild species for its fast domestication into a future economically viable oilseed and catch crop.
野生种水田芥（）属于十字花科，有潜力被开发成一种新型油料作物和填闲作物，然而，该物种在一些重要农艺性状方面需要进一步改良。其中之一是其含油量低，需要提高。据我们所知，尚未有针对提高该物种含油量的研究报道。为了探究提高水田芥种子含油量的可能性，我们尝试将来自（）或（）的（）或血红蛋白（）基因导入具有种子特异性表达的水田芥中。假设是通过过表达这些靶基因来提高含油量。结果表明，分别表达、和的转基因株系的含油量确实分别提高了29.9%、20.2%和25.9%。转基因株系的种子油成分与野生型植株的种子油成分没有显著差异。我们的结果表明，基因改造可用于该野生种，使其快速驯化成为未来具有经济可行性的油料作物和填闲作物。
