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园艺学报 ›› 2023, Vol. 50 ›› Issue (10): 2104-2116.doi: 10.16420/j.issn.0513-353x.2022-0465

• 遗传育种·种质资源·分子生物学 • 上一篇    下一篇

切花菊F1代光反应周期的遗传表现

袁储聪, 苏江硕, 蒋甲福, 邓波, 张飞, 管志勇, 房伟民, 陈发棣*()   

  1. 南京农业大学园艺学院,作物遗传与种质创新国家重点实验室、农业农村部景观农业重点实验室、华东地区花卉生物学国家林业和草原局重点实验室,南京 210095
  • 收稿日期:2023-02-16 修回日期:2023-06-26 出版日期:2023-10-25 发布日期:2023-10-30
  • 通讯作者: *(E-mail:chenfd@njau.edu.cn)
  • 基金资助:
    现代农业产业技术体系建设专项(CARS-23-A18); 江苏现代农业花卉产业技术体系建设项目(JATS[2021]454); 江苏省种业振兴揭榜挂帅项目(JBGS[2021]020)

Genetic Performance of Photoreaction Cycle in F1 Generation of Cut Chrysanthemum

YUAN Chucong, SU Jiangshuo, JIANG Jiafu, DENG Bo, ZHANG Fei, GUANG Zhiyong, FANG Weimin, CHEN Fadi*()   

  1. State Key Laboratory of Crop Genetics and Germplasm Enhancement/Key Laboratory of Landscping,Ministry of Agriculture and Rural Affairs/Key laboratory of Biology of Ornamental Plants in East China,National Forestry and Grassland Administration,College of Horticulture,Nanjing Agricultural University,Nanjing 210095,China
  • Received:2023-02-16 Revised:2023-06-26 Published:2023-10-25 Online:2023-10-30
  • Contact: *(E-mail:chenfd@njau.edu.cn)

摘要:

光反应周期在切花菊(Chrysanthemum morifolium Ramat.)生产中是一个非常重要的性状。选择光反应周期差异较大的6个品种配置3个杂交组合:‘Q-17’ב绿黄红边’、‘南农庐火’ב迷你黄’和‘Q1-39’ב黑心黄’,3个组合分别获得了386、208和181株F1后代。光反应周期的变异系数依次为5.85%、10.94%和8.76%,现蕾期、露色期、株高、节间长和叶片数等5个性状的变异系数在6.27% ~ 27.21%之间,光反应周期在3个组合F1群体中的中亲优势分别为5.81、6.88和9.69;除‘Q1-39’ב黑心黄’组合的株高中亲优势不显著外,其他的5个性状均存在极显著的正向或负向中亲优势。混和遗传模型分析发现,光反应周期、现蕾期、露色期在3个杂交组合中的遗传模型存在差异。光反应周期在‘Q-17’ב绿黄红边’组合中符合A-1模型,主基因遗传率为50.4%;在‘南农庐火’ב迷你黄’组合中符合A-0模型,没有主基因控制;在‘Q1-39’ב黑心黄’组合中符合B-1模型,主基因遗传率为84.93%,属于高度遗传力。

关键词: 切花菊, 光反应周期, 杂种优势, 混合遗传分析

Abstract:

The photoreaction cycle,a very important trait in the production of cut chrysanthemums(Chrysanthemum morifolium Ramat.),refers to the number of days for them to start from short sunshine and to reach the initial blooming state. Six chrysanthemum cultivars with larger differences in photoreaction cycle were selected as parents and produced 3 hybrid combinations,namely:‘Q-17’בLühuang Hongbian’(combination Ⅰ),‘Nannong Luhuo’בMini Huang’(combination Ⅱ),‘Q1-39’בHeixinhuang’(combination Ⅲ),386,208 and 181 F1 offspring were obtained from the three combinations,respectively. In the three combinations,the coefficient of variation of the photoresponse cycle was 5.85%,10.94% and 8.76%,and the coefficient of variation of the 5 traits of budding period,color developing period,plant height,internode length and number of leaves was from 6.27% to 27.21%,the mid-parental dominance of the photoreaction cycle in the three combinations of F1 populations were 5.81,6.88 and 9.69,respectively;while the other 5 traits,except for the insignificant high-to-high parental dominance of the combination Ⅲ,all were extremely significant. Positive and negative pro-predominance. The mixed genetic model analysis revealed that there were differences in the genetic models of the photoreaction cycle,the budding period and the color developing period among the three combinations. The photoreaction cycle conformed to the A-1 model in the combination I,and the heritability of the main gene is 50.4%;in the combination Ⅱ,it conforms to the A-0 model,without the control of the main gene;in the combination Ⅲ,it conforms to the B-1 model,and the heritability of the main gene It is 84.93%,which belongs to high heritability. Taken together,the photoreaction cycle is a complex quantitative trait,and its heritability varies greatly among different combinations.

Key words: cut chrysanthemum, photoreaction cycle, heterosis, mixed genetic analysis