稻米品質功能性標誌分析

Genetic Analysis of Rice Grain Quality Traits Using Functional Markers

陳哲仁(Jen-Ren Chen) ； 李長沛(Charng-Pei Li) ； 曾東海(Tung-Hai Tseng) ； 吳明哲(Min-Tze Wu)

《台灣農業研究》 57卷4期 (2008/12) Pp. 317-322

https://doi.org/10.6156/JTAR/2008.05704.08

摘要

水稻是台灣重要農作物之一，而良質米品種深受生產者及消費者所喜好，因此，稻米品質提昇是現行水稻育種的主要目標，特別是稻米的食味及外觀品質的改良。本實驗利用7個不同品質相關分子標誌，針對澱粉合成、香味以及穀粒長基因座進行調查，藉此瞭解國內栽培品種品質性狀的遺傳組成，結果顯示日本型及印度型水稻品種呈現兩種不同基因型組成，此外，在粒長GS3基因座發現新的對偶基因型，調查結果有助於利用水稻分子標誌輔助育種改良應用。

關鍵字

水稻 ； 品質 ； 功能性標誌

並列摘要

Rice (Oryza sativa) is one of the most important crops in Taiwan and quality rice varieties are preferable by producers and consumers. Hence, improvement of rice quality is a major objective in current breeding program, especially in appearance, cooking and eating quality. In this study, seven functional markers related to loci of starch synthesis, fragrance and grain length were surveyed to reveal the genetic basis of grain quality traits in rice cultivars grown in Taiwan. Results showed diversities of starch synthesis gene between japonica and indica subspecies of rice. Moreover, a new allele at GS3 locus was found. These findings are useful in rice breeding for quality improvement via marker-assisted selection.

並列關鍵字

Rice ； Oryza sativa ； Grain quality ； Functional markers