Correlation analysis and breeding application of agronomic traits and quality indexes in Dendrobium nobile.
10.19540/j.cnki.cjcmm.20210320.102
- Author:
Dan RAO
1
;
Shi-Gang ZHENG
2
;
Ting-Mei ZHAO
1
;
Shou YAN
1
;
Ya-Dong HU
2
;
Ruo-Xi ZHAO
2
;
Hong-Jie LI
1
;
Qin WANG
3
;
Liang-Yun GU
4
;
Ze CHUN
5
Author Information
1. Chengdu Institute of Biology,Chinese Academy of Sciences,CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province Chengdu 610041,China College of Life Science,University of Chinese Academy of Sciences Beijing 100049,China.
2. Chengdu Institute of Biology,Chinese Academy of Sciences,CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province Chengdu 610041,China.
3. Guangyuan Hengchang Biotechnology Co.,Ltd. Guangyuan 628003,China.
4. Sichuan Lianhua Agricultural Technology Development Co.,Ltd. Zigong 643000,China.
5. Chengdu Institute of Biology,Chinese Academy of Sciences,CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration and Biodiversity Conservation Key Laboratory of Sichuan Province Chengdu 610041,China Innovation Academy for Seed Design,Chinese Academy of Sciences Beijing 100101,China.
- Publication Type:Journal Article
- Keywords:
Dendrobium nobile;
breeding;
dendrobine;
oblate cylindricity;
polysaccharides;
stem width-thickness ratio
- MeSH:
Agriculture;
Dendrobium/genetics*;
Plant Breeding;
Plant Leaves/genetics*;
Polysaccharides
- From:
China Journal of Chinese Materia Medica
2021;46(13):3330-3336
- CountryChina
- Language:Chinese
-
Abstract:
The present study aimed to explore the correlation between agronomic traits and quality indexes of Dendrobium nobile and its application value in agricultural breeding. The cultivated strains of D. nobile in Hejiang-Chishui producing areas were extensively collected,and the main agronomic traits and quality indexes were measured. The agronomic traits with significant correlation with quality indexes were screened out by the correlation analysis,and then the parental lines and self-bred F_1 generation plants were furtherverified. Among 96 lines of D. nobile,the content of soluble polysaccharides showed a significant negative correlation with dendrobine( P < 0. 01),and no significant correlation with agronomic traits in stems and leaves. The content of dendrobine exhibited a significant positive correlation with the stem width-thickness ratio( at the largest cross section; P < 0. 01),and no significant correlation with other agronomic traits. Regression analysis further verified the positive correlation between dendrobine content and stem width-thickness ratio( R2> 0. 9). Two lines,JC-10 and JC-35,with significant differences in stem width-thickness ratio were screened out( P <0. 05). The corresponding F1 generation plants by self-pollination both showed that the dendrobine content was higher with greater stem width-thickness ratio( P < 0. 01). The experimental results suggested that within a certain range,the dendrobine content was higher in D. nobile with flatter stem. Therefore,in the breeding of D. nobile,this specific trait could be used for screening plants with high content of quality indexes such as dendrobine.
