CAJ | 학술논문

以位于福建卫闽国有林场10年生杉木80个半同胞家系的子代遗传测定林为材料,以ASReml程序进行林木遗传试验的空间分析,并分别利用试验设计模型和试验设计与空间分析整合模型对胸径生长进行遗传分析,检验空间分析对林木遗传试验效率的影响. 模型选择结果表明,试验设计与空间分析整合模型中,空间效应完全取代了试验设计效应,模型可简化为空间分析模型. 与试验设计模型相比,空间分析模型的AIC(赤池最小信息量准则)减少了129. 2,模型的拟合程度更好;同时,加性遗传方差增加了16. 5%,残差方差降低了11. 6%,单株狭义遗传力增加了31. 3%;行和列上的空间自相关参数分别为0.89和0.96,试验地点有明显的整体变异趋势.
이위우복건위민국유림장10년생삼목80개반동포가계적자대유전측정림위재료,이ASReml정서진행림목유전시험적공간분석,병분별이용시험설계모형화시험설계여공간분석정합모형대흉경생장진행유전분석,검험공간분석대림목유전시험효솔적영향. 모형선택결과표명,시험설계여공간분석정합모형중,공간효응완전취대료시험설계효응,모형가간화위공간분석모형. 여시험설계모형상비,공간분석모형적AIC(적지최소신식량준칙)감소료129. 2,모형적의합정도경호;동시,가성유전방차증가료16. 5%,잔차방차강저료11. 6%,단주협의유전력증가료31. 3%;행화렬상적공간자상관삼수분별위0.89화0.96,시험지점유명현적정체변이추세.
DBH at the age of 10 years in a progeny test of Chinese fir with 80 families from Fujian Weimin Forest Farm was examined by both experimental design model and combined design with spatial model, through which spatial analysis methods using ASReml was introduced, and efficiency of genetic trial was improved. All design effects was found re?placed by spatial effects in combined model. AIC was reduced by 129. 2 in spatial model, which was more effectively modelled the spatial variation than the design model, and greatly increased additive genetic variance by 16.5%, reduced residual variance by 11.6%, and improved individual tree narrow sense heritabilities by 31.3% correspondingly. Autocor?relations in row and column direction with 0.89 and 0.96 indicated that there are strong global trend in this site.