基于ADM模型的油用向日葵籽实含油率动态发育遗传研究  

Developmental genetic study of seed oil content in sunflower based on ADM genetic model

作　　者：包海柱[1,2] 高聚林[1] 马庆[1] 胡树平[1] 

机构地区：[1]内蒙古农业大学农学院,内蒙古呼和浩特010019 [2]内蒙古农牧业科学院,内蒙古呼和浩特010031

出　　处：《中国油料作物学报》2013年第5期533-538,共6页Chinese Journal of Oil Crop Sciences

基　　金：内蒙古自然科学基金(2010MS0308);公益性行业(农业)科研专项(nyhyzx07-016)

摘　　要：应用包括基因型×环境互作效应在内的加性-显性-母体遗传模型（ADM模型）及非条件和条件方差分析方法,分析不同环境下油用向日葵籽实含油率在发育时期的数据资料,估算油用向日葵籽实含油率在某一发育时间（0→t）或某一特定发育时间段（t-1→t）的发育遗传效应.结果表明,油用向日葵籽实含油率的表现主要取决于显性遗传效应和母体遗传效应.种子核基因、二倍体母体植株基因在粗脂肪积累的不同发育时期存在着表达水平上的差异,加性遗传效应和母体效应存在发育期间的间断表达现象.其主要表现为,开花后0 ～ 10d和30～40d的时段内未能检测到加性遗传效应,25d120d时段是加性效应表达的高峰期;显性效应在开花后的45d内均有极显著水平的表达,其中在开花后的15 ～ 30d的时段是显性微效多基因被激活及表达的活跃期,即杂种优势表现最为突出的时期;母体效应在开花后的35 ～ 45d内有较高水平的表达,其中最活跃期为开花后的40d135d时段;在开花后的20d内（开花后初期和中期）,基因效应的表达易受到环境条件的影响.The additive-dominant-maternal model with genotype × environment interaction was analyzed by both unconditional variance and conditional variance separately.The seed oil contents in oil sunflower were estimated at different stages in different environments.The estimations of genetic effect for oil content of seed were determined at the developmental stage（0→t）or the special developmental period（t-1→t）.The results showed that the oil content of seed was controlled by both dominant effect and matemal effect.The expression differences of seed nuclear genes and diploid maternal plant genes were observed on oil deposit during different developmental stages.The additive effect and the maternal effect were expressed inconsistently.The additive effect had not been detected at 0-10d and 30-40d after flowering,but it had been detected at peak during the days of 20-25.There were highly significant dominant effects during 0-45d after flowering,especially during the period of 15-30d.It was the predominant stage of heterosis performance,while the maternal effect was active from 35 to 45 after flowering,especially during the 35-40d.The expression of genetic effect was easily affected by environment in early and late stages of flowering.

关 键 词：油用向日葵 含油率 加性-显性-母体遗传模型 

分 类 号：S565.503[农业科学—作物学]