CAJ | 학술논문

用太谷核不育小麦构建小麦异交群体DNS1，对株高、穗粒数、千粒重、小穗密度分别进行单性状集团岐化选择，经过四代，各选择处理已表现出一定趋势.从平均数看，选择性状表现几乎与预期进展一致，向上选择的平均数总大于向下选择.统计分析结果表明，各代选择进展大小不同，其它性状也发生了程度不同的显著变化.分析性状的变异系数发现，随选择的进行遗传变异没有发生明显的降低，某些处理甚至表现出升高的趋势.说明选择没有引起群体遗传结构的破坏.另外，方差分析表明，群体间差异达显著水平，说明群体发生了一定的遗传趋异.主成分遗传距离和聚类分析进一步表明，群体间关系随世代发生着不规律的变化.
용태곡핵불육소맥구건소맥이교군체DNS1，대주고、수립수、천립중、소수밀도분별진행단성상집단기화선택，경과사대，각선택처리이표현출일정추세.종평균수간，선택성상표현궤호여예기진전일치，향상선택적평균수총대우향하선택.통계분석결과표명，각대선택진전대소불동，기타성상야발생료정도불동적현저변화.분석성상적변이계수발현，수선택적진행유전변이몰유발생명현적강저，모사처리심지표현출승고적추세.설명선택몰유인기군체유전결구적파배.령외，방차분석표명，군체간차이체현저수평，설명군체발생료일정적유전추이.주성분유전거리화취류분석진일보표명，군체간관계수세대발생착불규률적변화.
Wheat outbreeding population DNS1 was created with Taigu malesterile wheats and singletraitselected divergently. Through four generations, each treatment has showed certain trend, the upselected averages were always larger than the downselected, and the results by statistical analysis shows:the improvement for every generation was different.Variant coefficients of trait were not deduced,any treatments tend increased,this shows:selection did not bring about destruction of population.Through variance analysis,interpopulation difference were significant,certain genetic divergence existed in population.Principal distance and cluster analysis show relations of population vary irregulately with every generation.