南京林业大学学报（自然科学版）2017，Vol.41Issue(3)：57-64,8.DOI:10.3969/j.issn.1000-2006.2017.201604035
不同产地南方红豆杉育种亲本叶绿素含量及荧光参数差异分析
The variation in chlorophyll content and fluorescence parameters of Taxus wallichiana var.mairei breeding parents from different locations
摘要
Abstract
[Objective] The objective of this study was to accurately select excellent cross breeding parents of Taxus wallichiana var.mairei and efficiently conduct hybrid breeding tests.[Method] In this paper,growth traits and chlorophyll content of parents were measured and fluorescence parameters were investigated by IMAGING-PAM.Differences in growth characters,chlorophyll content and chlorophyll fluorescence parameters of female and male parents from 30 locations were analyzed.[Result] The height,chlorophyll content,and chlorophyll fluorescence parameters of breeding parents were significantly different among locations,but only Y(Ⅱ),Y(NPQ),qP and Fv/Fm were significantly different between genders.The coefficient of variation of growth traits was more than 15％.The energy efficiency of female and male PS Ⅱ reaction centers were compared and Y(Ⅱ),qP and Fv/Fm of females were 11.30％,4.28％ and 4.11％ higher than those of males,respectively.However,the male Y(NPQ) was significantly higher (12.95％) than that of the females.Regarding light energy allocation mode,41％ light energy was used in the photochemical reaction in females,and 37％ in males.The Euclidean distance was eight,and breeding parents were divided into four groups based on phenotypic traits.The phenotypic traits of breeding parents from group Ⅰ were medium,but photosynthetic efficiency of PS Ⅱ was substantial.The phenotypic traits and PS Ⅱ photosynthetic efficiency of group Ⅱ were the worst,whereas group Ⅲ phenotypic traits and photosynthetic efficiency were better,and the phenotypic traits and PS] photosynthetic efficiency of the last group were excellent.[Conclusion] The growth traits of the females were lower than those of males,but the photosynthetic efficiency of their PSⅡ reaction centers was higher than that of males.This may be related to greater reproductive costs in females.On the other hand,the growth traits of breeding parents were very good,and the fluorescence parameters that represent photosynthetic efficiency of PSⅡ were higher.This indicated that chlorophyll fluorescence parameters could reflect the growth status of the parents to some degree.关键词
南方红豆杉/雌雄异株/育种亲本/叶绿素含量/叶绿素荧光参数Key words
Taxus wallichiana var.mairei/dioecious/breeding parents/chlorophyll content/chlorophyll fluorescence parameter分类
农业科技引用本文复制引用
肖遥,张蕊,刘建慧,梁朔,周志春..不同产地南方红豆杉育种亲本叶绿素含量及荧光参数差异分析[J].南京林业大学学报（自然科学版）,2017,41(3):57-64,8.基金项目
浙江省农业新品种选育重大科技专项项目(2012C12908-5) （2012C12908-5）
