玉米叶片叶绿素含量的发育遗传动态及环境互作效应分析  

Developmental genetics of leaf chlorophyll and genotype-environment interaction in maize

作　　者：赵延明[1] 董树亭[1] 严敏[2] 高宏伟[2] 

机构地区：[1]山东农业大学农学院,泰安271018 [2]青岛农业大学植物科技学院,青岛266109

出　　处：《中国生态农业学报》2008年第3期649-654,共6页Chinese Journal of Eco-Agriculture

基　　金：国家自然科学基金项目(30170546);国家作物生物学重点实验室开放课题(200401)资助

摘　　要：采用包括基因型×环境互作效应的加性-显性遗传模型及非条件和条件的分析方法，研究了不同环境条件下玉米吐丝后不同发育时期叶片叶绿素含量性状的发育动态及其遗传发育规律。结果表明：玉米叶片叶绿素含量在不同发育时期均受到环境变化的影响。控制玉米叶片叶绿素含量的各遗传效应在不同环境条件下存在表达水平上的差异。吐丝至成熟前4个时期性状的表现是以遗传主效应（加性效应VA和显性效应VD）为主，遗传效应表达在不同环境中较为稳定，玉米籽粒成熟期该性状的表现是以环境互作效应为主，此时的遗传效应表达在不同环境中变化较大。玉米腊熟期至成熟期即玉米吐丝后40～50d是控制玉米吐丝后叶片叶绿素含量表现的微效多基因被激活表达最为活跃的时期。一些遗传效应存在发育时期间断表达的现象。An additive-dominance genetic model with genotype-environment interaction and corresponding statistical analysis of unconditional and conditional variance were used to determine developmental genetic behavior of chlorophyll at different developmental stages under different environmental conditions in maize leaf. The results show that maize leaf chlorophyll content is affected by environmental conditions from silking to maturity. Differences in expression under different environments Of gene effect are observed in maize leaf chlorophyll content. Main genetic effects （additive and dominance） are active in maize leaf chlorophyll content before maize kernel maturity, with stable genetic expressions in different environments. The performance of maize leaf chlorophyll content at kernel maturity is mainly controlled by environment-interaction effect and the genetic expression broadly changes in different environments. Gene expression is most active 40 - 50 days after silking. Genetic effect phenomena are spasmodically expressed and detected at different developmental stages.

关 键 词：玉米 叶绿素含量 遗传方差 条件遗传方差 基因型×环境互作 

分 类 号：S513.01[农业科学—作物学]