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油籽作物的遗传研究及混合法新品种选育

Genetic study of oilseed crop and selection of a new variety by the bulk method.

作者信息

Ghidoli Martina, Geuna Filippo, De Benedetti Stefano, Frazzini Sara, Landoni Michela, Cassani Elena, Scarafoni Alessio, Rossi Luciana, Pilu Salvatore Roberto

机构信息

Department of Agricultural and Environmental Sciences - Production, Landscape and Agroenergy, University of Milan, Milan, Italy.

Department of Food, Environmental and Nutritional Sciences, University of Milan, Milan, Italy.

出版信息

Front Plant Sci. 2024 May 28;15:1385332. doi: 10.3389/fpls.2024.1385332. eCollection 2024.

Abstract

, commonly referred to as camelina or false flax, has emerged as a promising cover crop with the potential to mitigate climate change-a pressing global challenge that demands urgent and sustainable solutions. Belonging to the Brassicaceae family and native to Europe and Central Asia, camelina is an oilseed crop known for its resilience in diverse climates, including arid and semi-arid regions, making it adaptable to various environments. A breeding program started from a study of six winter varieties and five spring varieties of camelina is described: these genetic materials were characterized by SSRs molecular markers and by GBS technique. Molecular data clearly showed all spring varieties were genetically similar and distinguishable from the winter varieties, which, in turn, clustered together. Using molecular data, parental varieties belonging to the two different clusters were selected to generate new genetic variability. The new variety obtained, selected through the bulk method based on three parameters: yield, earliness, and weight of 1000 seeds, has allowed the generation of the new genetic material provisionally named C1244. Chemical characterization was performed (bromatological and glucosinolates analysis) to better describe C1244 in comparison with benchmark varieties. The new variety exhibited early maturity, similar to spring varieties, making this genetic material promising for use in intercropping systems, a high weight of 1000 seeds (1.46 g) which improves and facilitates seeding/harvesting operations and a high oil content (33.62%) akin to winter varieties making it valuable for human and animal food purposes.

摘要

亚麻荠,通常被称为亚麻荠或假亚麻,已成为一种有前景的覆盖作物,有潜力缓解气候变化——这是一个紧迫的全球挑战,需要紧急和可持续的解决方案。亚麻荠属于十字花科,原产于欧洲和中亚,是一种油料作物,以其在包括干旱和半干旱地区在内的各种气候条件下的适应能力而闻名,使其能适应各种环境。本文描述了一项始于对六个亚麻荠冬性品种和五个春性品种研究的育种计划:这些遗传材料通过SSR分子标记和GBS技术进行了表征。分子数据清楚地表明,所有春性品种在遗传上相似,且与冬性品种有区别,而冬性品种则聚集在一起。利用分子数据,从两个不同聚类中选择亲本品种以产生新的遗传变异。通过基于产量、早熟性和千粒重这三个参数的混合选择法获得的新品种,使得新的遗传材料得以产生,该材料暂命名为C1244。进行了化学表征(营养成分分析和硫代葡萄糖苷分析),以便与对照品种相比更好地描述C1244。该新品种表现出早熟性,与春性品种相似,这使得这种遗传材料有望用于间作系统,其千粒重较高(1.46克),改善并便于播种/收获操作,且含油量高(33.62%),与冬性品种相似,使其对人类和动物食品用途具有价值。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/49e1/11165348/26f7de6d99f5/fpls-15-1385332-g009.jpg

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