Genetic Study on Milled Rice Amylose Content by Means of Single-Grain Amylose Analysis

經藉單粒直鏈澱粉分析的白米直鏈澱粉含量之遺傳研究

郭益全(Yih-Chuan Kuo) ； 偉伯比爾(Bill D. Webb) ； 史譚索詹姆士(James W. Stansel)

《中華農業研究》 45卷1期 (1996/03) Pp. 1-14

https://doi.org/10.29951/JARC.199603.0001

摘要

白米直鏈澱粉含量是一個重要的品質介量，本研究以單粒直鏈澱粉分析進行白米直鏈澱粉含量之遺傳研究。在中與低直鏈澱粉含量親本之雜交組合中，中直鏈澱粉含量對低含量受一對不完全顯性基因所支配。而在高與低直鏈澱粉含量親本的雜交組合中，指出高含量對低含量受兩對不完全顯性的互補基因所控制。一個高直鏈澱粉含量對中含量係受一對不完全顯性基因所支配的遺傳假說則符合高與中直鏈澱粉含量親本的雜效組合。另，直鏈澱粉含量尚受微效修飾基因影響之證據也在本研究一些組合中被發現。文中曾就無基因劑量效應的前提下，例釋胚乳性狀的分離模式。

關鍵字

單粒直鏈澱粉分析 ； 白米 ； 直鏈澱粉含量 ； 遺傳研究

並列摘要

Amylose content of milled rice is a significant quality parameter. Genetic analysis of amylose content was conducted using single-grain amylose analysis. Intermediate amylose content to low appeared to be controlled by a single incompletely dominant gene in the combinations between the intermediate and low amylose parents. Two incompletely dominant complementary genes conditioning high over low were suggested from the combinations between high and low amylose parents. A genetic hypothesis of a single incompletely dominant gene controlling high to intermediate amylose was fitted in mating high with intermediate amylose parents. Evidence that amylose content was also influenced by genes of minor effects, or modifiers was also observed in some combinations. The segregation model of endosperm characteristics was illustrated under the assumption of no dosage effect.

並列關鍵字

Genetic studies ； Milled rice ； Amylose content ； Single-grain amylose analysis