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篩選適合臺灣水稻耐淹性育種之分子標誌

Molecular marker selected for submergence-tolerance rice breeding in Taiwan

摘要


水稻為世界主要的糧食作物,在今日氣候變遷之下,相關該作物之研究著實重要,同時以分子標誌輔助育種程序之趨勢已日益普遍。本研究係利用7個分子標誌引子,比較臺灣主要栽培水稻品種與具有Sub1基因片段之耐淹品系等26個品種(系)間的差異性,發現惟RM23887分子標誌引子可區分出臺灣目前主要栽培品種與具耐淹基因之Sub1品系之差異。因此,該分子標誌將可應用於作為臺灣水稻或其雜交後裔耐淹性基因型之辨別工具,提高育種程序以及人力之效率。

並列摘要


Rice is the main food of the world. Due to the worldwide climate change, it has become an important topic for food security. Meanwhile, the molecular marker assisted selection applied in breeding program also becomes more and more popular. In this study, we used 7 molecular markers to genotypes of the 24 rice Taiwanese cultivars and the introgression lines carrying flooding-tolerance (Sub1 gene). The results demonstrated that only RM23887 displayed the polymorphisms between Taiwanese rice varieties and Sub1-introgression lines. Therefore, this marker can be used as a tool to distinguish with the genotypes of Taiwanese cultivars and their crossing progeny for improving the efficiency of breeding.

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