Article (Scientific journals)
Characterization and Mapping of a Novel Premature Leaf Senescence Mutant in Common Tobacco (Nicotiana tabacum L.).
Gao, Xiaoming; Wu, Xinru; Liu, Guanshan et al.
2019In Plants, 8 (10), p. 415
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Keywords :
EMS mutagenesis; SSR markers; plant hormone; premature leaf senescence; tobacco; Ecology, Evolution, Behavior and Systematics; Ecology; Plant Science
Abstract :
[en] As the last stage of plant development, leaf senescence has a great impact on plant's life cycle. Genetic manipulation of leaf senescence has been used as an efficient approach in improving the yield and quality of crop plants. Here we describe an ethyl methane sulfonate (EMS) mutagenesis induced premature leaf senescence mutant yellow leaf 1 (yl1) in common tobacco (Nicotiana tabacum L.). The yl1 plants displayed early leaf yellowing. Physiological parameters and marker genes expression indicated that the yl1 phenotype was caused by premature leaf senescence. Genetic analyses indicated that the yl1 phenotype was controlled by a single recessive gene that was subsequently mapped to a specific interval of tobacco linkage group 11 using simple sequence repeat (SSR) markers. Exogenous plant hormone treatments of leaves showed that the yl1 mutant was more sensitive to ethylene and jasmonic acid than the wild type. No similar tobacco premature leaf senescence mutants have been reported. This study laid a foundation for finding the gene controlling the mutation phenotype and revealing the molecular regulation mechanism of tobacco leaf senescence in the next stage.
Disciplines :
Agriculture & agronomy
Author, co-author :
Gao, Xiaoming  ;  Université de Liège - ULiège > TERRA Research Centre ; Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
Wu, Xinru ;  Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
Liu, Guanshan;  Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
Zhang, Zenglin;  Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
Chao, Jiangtao;  Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
Li, Zhiyuan ;  Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
Guo, Yongfeng ;  Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
Sun, Yuhe;  Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
 These authors have contributed equally to this work.
Language :
English
Title :
Characterization and Mapping of a Novel Premature Leaf Senescence Mutant in Common Tobacco (Nicotiana tabacum L.).
Publication date :
15 October 2019
Journal title :
Plants
eISSN :
2223-7747
Publisher :
MDPI, Switzerland
Volume :
8
Issue :
10
Pages :
415
Peer reviewed :
Peer reviewed
Funders :
NSCF - National Natural Science Foundation of China [CN]
Funding text :
This research was funded by the Science Foundation for Young Scholars of Tobacco Research Institute of Chinese Academy of Agricultural Sciences, grant number 2017B07; and the Agricultural Science and Technology Innovation Program, grant number ASTIP-TRIC02.Funding: This research was funded by the Science Foundation for Young Scholars of Tobacco Research Institute of Chinese Academy of Agricultural Sciences, grant number 2017B07; and the Agricultural Science and Technology Innovation Program, grant number ASTIP-TRIC02.
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