福建稻麦科技
福建稻麥科技
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FUJIAN SCIENCE AND TECHNOLOGY OF RICE AND WHEAT
2011年
4期
1-4
,共4页
王洪飞%仇秀丽%林强%周卫营%杨小飞%张敏%王乃元%郑秀平
王洪飛%仇秀麗%林彊%週衛營%楊小飛%張敏%王迺元%鄭秀平
왕홍비%구수려%림강%주위영%양소비%장민%왕내원%정수평
杂交稻%新质源(CMS—FA)%谷粒性状%遗传效应
雜交稻%新質源(CMS—FA)%穀粒性狀%遺傳效應
잡교도%신질원(CMS—FA)%곡립성상%유전효응
hybrid rice%new cytoplasmic germplasm （ CMS-FA ）%grain traits%genetic effects
采用加性一显性遗传模型（AD），对新质源杂交稻（CMS—FA）遗传系统的10个亲本和25个杂种一代的谷粒性状进行遗传分析。结果表明，新质源杂交稻的千粒重和粒长的遗传主要受加性效应控制，它们的狭义遗传率较大且均达极显著水平，在早代对这2性状进行选择可达到较好的效果，而粒宽、长宽比各项遗传方差分量均不显著。亲本加性遗传效应预测值表明，金恢3号是改良水稻谷粒性状的优良亲本，其能显著的提高千粒重、增加粒长和长宽比。杂交组合显性效应在千粒重性状上有较大的差异，而在粒长、粒宽和长宽比性状上差异较小。
採用加性一顯性遺傳模型（AD），對新質源雜交稻（CMS—FA）遺傳繫統的10箇親本和25箇雜種一代的穀粒性狀進行遺傳分析。結果錶明，新質源雜交稻的韆粒重和粒長的遺傳主要受加性效應控製，它們的狹義遺傳率較大且均達極顯著水平，在早代對這2性狀進行選擇可達到較好的效果，而粒寬、長寬比各項遺傳方差分量均不顯著。親本加性遺傳效應預測值錶明，金恢3號是改良水稻穀粒性狀的優良親本，其能顯著的提高韆粒重、增加粒長和長寬比。雜交組閤顯性效應在韆粒重性狀上有較大的差異，而在粒長、粒寬和長寬比性狀上差異較小。
채용가성일현성유전모형（AD），대신질원잡교도（CMS—FA）유전계통적10개친본화25개잡충일대적곡립성상진행유전분석。결과표명，신질원잡교도적천립중화립장적유전주요수가성효응공제，타문적협의유전솔교대차균체겁현저수평，재조대대저2성상진행선택가체도교호적효과，이립관、장관비각항유전방차분량균불현저。친본가성유전효응예측치표명，금회3호시개량수도곡립성상적우량친본，기능현저적제고천립중、증가립장화장관비。잡교조합현성효응재천립중성상상유교대적차이，이재립장、립관화장관비성상상차이교소。
Genetic effects for grain traits of CMS-FA hybrid rice, which contained 10 parents and 25 F] hybrids, were analyzed by the additive-dominant model （ AD ） . The results showed that 1000-grain-weight and grain length of CMS-FA hybrid rice were mainly controlled by additive effects and their narrow heritabilities were relatively high tat very significant level, so it was better to choose the two traits in the early generations, while the genetic variances of grain width and ratio of length to width were not ideal. The parents＇ predictive value of the additive effects indicated that Jinhui 3 was a good parent which could largely increase grain weight, grain length and the ratio of length to width. The dominant effects of the hybrids had larger differences in 1000-grain-weight while the slight differences were ob- served only in grain length, grain width and the ratio of the length to width.
