CAJ | 학술논문

利用水稻植酸含量差异较大的品种中花11(粳型)和LPA(籼型)为亲本杂交获得F_2群体的172个单株,构建了含126个SSR和4个STS标记的遗传连锁图谱,利用贝叶斯(Bayesian)法对水稻籽粒植酸含量性状进行了主效应QTL定位和上位性互作分析.共检测到 3 个与水稻籽粒植酸含量性状有关的主效QTL,分布在第3、5和6 染色体的相应区间内,表型贡献率分别为5.38%、8.02%和4.62%,降低籽粒植酸含量的等位基因均来自亲本LPA.检测到10对上位性互作影响籽粒植酸含量, 分布于水稻第1、3、5、6、11染色体上,互作效应值为1.69～5.18,其表型变异的解释率为8.67%～24.73%.
이용수도식산함량차이교대적품충중화11(갱형)화LPA(선형)위친본잡교획득F_2군체적172개단주,구건료함126개SSR화4개STS표기적유전련쇄도보,이용패협사(Bayesian)법대수도자립식산함량성상진행료주효응QTL정위화상위성호작분석.공검측도 3 개여수도자립식산함량성상유관적주효QTL,분포재제3、5화6 염색체적상응구간내,표형공헌솔분별위5.38%、8.02%화4.62%,강저자립식산함량적등위기인균래자친본LPA.검측도10대상위성호작영향자립식산함량, 분포우수도제1、3、5、6、11염색체상,호작효응치위1.69～5.18,기표형변이적해석솔위8.67%～24.73%.
Main QTL and epistasis interaction effects for phytic acid concentration in rice grain were investigated by using a F_2 population consisted of 172 lines derived from the cross between an indica rice LPA(the grain phytic acid concentration was 7.11 mg/g) and a japonica rice Zhonghua 11(the phytic acid concentration was 11.92 mg/g) with the Bayesian model selection. A genetic linkage map including 126 SSR and 4 STS markers was constructed with the F_2 population. Three main QTLs related to phytic acid concentration in rice grain were detected. They were located on chromosomes 3, 5, and 6, explaining 5.38%, 8.02%, and 4.62% of phenotypic variation, respectively. The three alleles for reducing the phytic aid concentration were from the parent LPA. Ten pairs of epistatic interaction were detected on chromosomes 1, 3, 5, 6, and 11, with the interaction effects from 1.69 to 5.18 and the percentages of phenotypic variance ranged from 8.67% to 24.73%.