东北农业大学学报
東北農業大學學報
동북농업대학학보
JOURNAL OF NORTHEAST AGRICULTURAL UNIVERSITY
2014年
3期
46-51
,共6页
甜瓜%重组自交系群体%叶面积%主基因+多基因遗传模型%遗传
甜瓜%重組自交繫群體%葉麵積%主基因+多基因遺傳模型%遺傳
첨과%중조자교계군체%협면적%주기인+다기인유전모형%유전
melon%recombinant inbred line%leaf area%major gene plus polygene model%genetic
研究甜瓜叶面积的遗传规律,采用RILs群体主基因+多基因混合遗传模型分析法,在春秋两季,通过叶面积较小甜瓜品系“WI998”与叶面积较大品系“3-2-2”杂交所得重组自交系群体(RILs),对叶面积遗传特性进行分析。为甜瓜株型和高光效育种提供理论基础。春季叶面积遗传受两对隐性上位主基因、无多基因模型(B_1_5)控制,主基因遗传率为98.93%,多基因遗传率为0;秋季叶面积遗传同样受两对隐性上位主基因、无多基因模型(B_1_5)控制,主基因遗传率为98.15%,多基因遗传率为0。甜瓜叶面积主要受两对隐性上位主基因控制,没有多基因作用,不同季节稳定遗传,同时也受环境变异的影响。
研究甜瓜葉麵積的遺傳規律,採用RILs群體主基因+多基因混閤遺傳模型分析法,在春鞦兩季,通過葉麵積較小甜瓜品繫“WI998”與葉麵積較大品繫“3-2-2”雜交所得重組自交繫群體(RILs),對葉麵積遺傳特性進行分析。為甜瓜株型和高光效育種提供理論基礎。春季葉麵積遺傳受兩對隱性上位主基因、無多基因模型(B_1_5)控製,主基因遺傳率為98.93%,多基因遺傳率為0;鞦季葉麵積遺傳同樣受兩對隱性上位主基因、無多基因模型(B_1_5)控製,主基因遺傳率為98.15%,多基因遺傳率為0。甜瓜葉麵積主要受兩對隱性上位主基因控製,沒有多基因作用,不同季節穩定遺傳,同時也受環境變異的影響。
연구첨과협면적적유전규률,채용RILs군체주기인+다기인혼합유전모형분석법,재춘추량계,통과협면적교소첨과품계“WI998”여협면적교대품계“3-2-2”잡교소득중조자교계군체(RILs),대협면적유전특성진행분석。위첨과주형화고광효육충제공이론기출。춘계협면적유전수량대은성상위주기인、무다기인모형(B_1_5)공제,주기인유전솔위98.93%,다기인유전솔위0;추계협면적유전동양수량대은성상위주기인、무다기인모형(B_1_5)공제,주기인유전솔위98.15%,다기인유전솔위0。첨과협면적주요수량대은성상위주기인공제,몰유다기인작용,불동계절은정유전,동시야수배경변이적영향。
The inheritance law of leaf area in melon was studied for providing a theoretical basis for plant type and high photosynthetic efficiency breeding. Recombinant inbred lines(RILs)derived from the cross of WI998 × 3-2-2 with small leaflet and big leaflet were used to study the inheritance of melon leaf area by RIL mixed major gene plus polygene inheritance models. The results showed that the inheritance of leaf area fitted two pairs of epistatic recessiveness major genes plus no polygene model(B_1_5) in spring. The major gene heritability of RILs were estimated to be 98.93%, and the polygene heritability to be 0. In autumn, the inheritance of leaf area also fitted two pairs of epistatic recessiveness major genes plus no polygene model(B_1_5). The major gene heritability of RILs was estimated to be 98.15%, the polygene heritability to be 0. Leaf area in melon was controlled by two pairs epistatic recessiveness major genes plus no polygene, and heritability leaf area was stable in different seasons, and also affected by the environment.