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| 花椰菜花球球径的发育遗传研究 | |
| 引用本文： | 杨加付,饶立兵,叶子弘.花椰菜花球球径的发育遗传研究[J].浙江大学学报(农业与生命科学版),2010,36(1):28. |
| 作者姓名： | 杨加付 饶立兵 叶子弘 |
| 作者单位： | 1. 温州大学,生命与环境科学学院,浙江,温州,325035 2. 温州市农业科学研究院,蔬菜研究所,浙江,温州,325006 3. 中国计量学院,生命科学学院,浙江,杭州,310018 |
| 基金项目： | 浙江省科技计划资助项目 |
| 摘 要： | 利用包括基因与环境互作的加性-显性遗传模型对6个花椰菜品种(系)完全双列杂交实验的2年观察资料进行花球球径不同发育阶段的遗传分析。结果表明:年份间的环境差异对亲本和F1的球径表现影响较小,球径在整个发育期主要受加性效应控制,不存在基因型×环境互作效应,选用瑞雪70天、c-3、c-5为亲本配置组合,能够使其后代在10月中下旬前在平均球径的基础上增大球径;而福州80天和c-8这2个亲本的表现恰好相反。进一步对不同发育阶段的平均球径进行条件遗传分析发现,加性主效应和显性主效应在球径增大的大部分时期都有新的表达,且不易受到年份等外部条件的影响,但这些新表达的效应在10月12日之前和之后表现为相反的方向。成熟期球径给定不同发育时期性状的条件遗传分析表明,在各个时期均检测到显著的条件加性方差(10月24日除外)和条件显性方差,10月6日之前的净加性表达效应的作用占最终球径表现变异的88.8%。 |
| 关 键 词： | 花椰菜 球径 条件遗传分析 发育阶段 |
evelopmental genetic analysis for head diameter of cauliflower (Brassica oleracea L. var. botrytis L.) |
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| YANG Jia-fu,RAO Li-bing,YE Zi-hong.evelopmental genetic analysis for head diameter of cauliflower (Brassica oleracea L. var. botrytis L.)[J].Journal of Zhejiang University(Agriculture & Life Sciences),2010,36(1):28. | |
| Authors: | YANG Jia-fu RAO Li-bing YE Zi-hong |
| Institution: | YANG Jia-fu1,RAO Li-bing2,YE Zi-hong3(1.School of Life , Environment Sciences,Wenzhou University,Wenzhou,Zhejiang 325035,China,2.Institute of Vegetable Sciences,Wenzhou Academy of Agricultural Sciences,Zhejiang 325006,3.School of Life Sciences,China Jiliang University,Hangzhou 310018,China) |
| Abstract: | An additive-dominant genetic model with genotype-environment(GE) interaction was employed to analyze the genetic behavior of head diameter of cauliflower at different developmental stages, based on 2-year data from 6×6 diallel crosses. The results indicate that head diameter of parents and F1 was mainly controlled by additive effects at whole developmental period, and the effect of environmental deviation of different years on it was less. Compared with genetic main effects, GE interaction effects played a minor and insignificant role on the head diameter. The predicted additive effects of head diameter at different developmental stages indicated that enhanced head diameter over population mean could be expected when Ruixue 70, c-3 and c-5 were selected as parents, while opposite phenomenon was observed when Fuzhou 80 and c-8 were selected. It was found that, by conditional variances and conditional additive effects, extra new additive and dominant effects were detected at most developmental periods, which were relatively stable under different environmental conditions. But interestingly, opposite direction was observed for these extra new additive and dominant effects before and after Oct.12. Significant conditional additive variance and conditional dominant variance were detected at most stages (except final stage conditioned on Oct.24 for conditional additive variance). Eighty-eight point eight percent of unconditional additive variation was contributed by net additive effects accumulated from initial time to Oct.6. |
| Keywords: | cauliflower (Brassica oleracea L var botrytis L ) head diameter conditional genetic analysis developmental stage |
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