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Gene identification and charaterization for oil content in canola

双低油菜籽油含量的基因鉴定和表征

基本信息

批准号：
RGPIN-2018-06038
负责人：
Li, Genyi
金额：
$ 2.11万
依托单位：
University of Manitoba
依托单位国家：
加拿大
项目类别：
Discovery Grants Program - Individual
财政年份：
2020
资助国家：
加拿大
起止时间：
2020-01-01 至 2021-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=714045
关键词：
Gene identification charaterization oil content

项目摘要

Canola is Canada's most valuable crop; the canola industry has tripled in last 10 years and it now contributes $26.7 billion to the Canadian economy. Canola is primarily used as an edible vegetable oil although it can be used for other purposes such as biodiesel feed stock. To increase oil content and maximize the benefit of canola production, it is necessary to know what genes are primary targets for increasing oil content in canola breeding. Currently, very few genes underlying oil content in canola have been identified. The objectives are to identify and characterize genes controlling oil content in canola. First, gene mapping will be performed to identify chromosome regions containing the genes with significant contribution to seed oil content in canola. Second, fine mapping of the genes for oil content will be performed and major genetic factors mapped on corresponding chromosome regions. The next step will focus on these chromosome regions through second and third generation sequencing analysis to identify candidate genes for oil content. Finally, the candidate genes will be further analyzed through plant transformation to modify gene expression. Various plant transformation methods will be used to edit the candidate genes so the genes having significant contribution to oil content in canola will be confirmed. The novelty of this research is to understand what genes are involved in oil formation in canola seeds. This genetic information has the potential to allow Canadian canola industry to increase oil content through molecular breeding methods. The results in gene cloning and function analysis can be used to manipulate these confirmed genes for oil content such as molecular marker assisted selection and genomic selection and transfer these genes with major effects on oil content into their new canola cultivars. The new cultivars will produce more canola oil without extra input. This research work will benefit the Canadian canola industry and contribute to the Canadian economy.

油菜籽是加拿大最有价值的作物;油菜籽产业在过去10年中增长了两倍，目前为加拿大经济贡献了267亿美元。卡诺拉主要用作食用植物油，但也可用于其他用途，如生物柴油原料。为了提高油菜含油量，使油菜生产效益最大化，有必要了解哪些基因是油菜育种中提高含油量的主要目标。目前，很少有基因在油菜油含量已被确定。目的是鉴定和表征控制油菜含油量的基因。首先，将进行基因定位以鉴定含有对卡诺拉种子油含量有显著贡献的基因的染色体区域。第二，对含油量基因进行精细定位，并将主要遗传因子定位在相应的染色体区域。下一步将通过第二代和第三代测序分析重点关注这些染色体区域，以确定含油量的候选基因。最后，将通过植物转化进一步分析候选基因以改变基因表达。将利用各种植物转化方法对候选基因进行编辑，从而确定对油菜含油量有显著贡献的基因。这项研究的新奇在于了解哪些基因参与了油菜籽中的油形成。这种遗传信息有可能使加拿大油菜籽工业通过分子育种方法增加含油量。基因克隆和功能分析的结果可用于分子标记辅助选择和基因组选择等对油分性状有重要影响的基因的操作，并将这些基因导入新的油菜品种中。新品种将生产更多的菜籽油，而无需额外投入。这项研究工作将有利于加拿大油菜产业，并为加拿大经济做出贡献。