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Potential interaction between autophagy and auxin during maize leaf senescence
Feng, Xue; Liu, Lili; Li, Zhigang; Sun, Fang; Wu, Xiaoyuan; Hao, Dongyun2; Hao, Huaiqing; Jing, Hai-Chun
2021
发表期刊JOURNAL OF EXPERIMENTAL BOTANY
ISSN0022-0957
卷号72期号:10页码:3554-3568
摘要Leaf senescence is important for crop yield as delaying it can increase the average yield. In this study, population genetics and transcriptomic profiling were combined to dissect its genetic basis in maize. To do this, the progenies of an elite maize hybrid Jidan27 and its parental lines Si-287 (early senescence) and Si-144 (stay-green), as well as 173 maize inbred lines were used. We identified two novel loci and their candidate genes, Stg3 (ZmATG18b) and Stg7 (ZmGH3.8), which are predicted to be members of autophagy and auxin pathways, respectively. Genomic variations in the promoter regions of these two genes were detected, and four allelic combinations existed in the examined maize inbred lines. The Stg3(Si-144)/Stg7(Si-1)(44) allelic combination with lower ZmATG18b expression and higher ZmGH3.8 expression could distinctively delay leaf senescence, increase ear weight and the improved hybrid of NIL-Stg3(Si-144)/Stg7(Si-1)(44) significantly reduced ear weight loss under drought stress, while opposite effects were observed in the Stg3(Si-)(287)/Stg7(Si-)(287) combination with a higher ZmATG18b expression and lower ZmGH3.8 expression. Thus, we identify a potential interaction between autophagy and auxin which could modulate the timing of maize leaf senescence.
关键词Autophagy and auxin pathways interaction leaf senescence maize yield population genetics transcriptomic profiling
学科领域Plant Sciences
DOI10.1093/jxb/erab094
收录类别SCI
语种英语
WOS关键词QUANTITATIVE TRAIT LOCI ; STAY-GREEN TRAIT ; RNA-SEQ DATA ; PLANT SENESCENCE ; DROUGHT TOLERANCE ; ABSCISIC-ACID ; QTL ; IDENTIFICATION ; GENES ; FAMILY
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号WOS:000661530200010
出版者OXFORD UNIV PRESS
文献子类Article
出版地OXFORD
EISSN1460-2431
资助机构National Key Research and Development Plan of China [2016YFD0100605] ; Ministry of Science and Technology of China [2018ZX08009-11B] ; Chinese Academy of Sciences [XDA24010106]
作者邮箱hqhao@ibcas.ac.cn ; hcjing@ibcas.ac.cn
作品OA属性hybrid, Green Published
引用统计
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ibcas.ac.cn/handle/2S10CLM1/26435
专题中科院北方资源植物重点实验室
作者单位1.Chinese Acad Sci, Inst Bot, Key Lab Plant Resources, Beijing 100093, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Jilin Acad Agr Sci, Inst Agr Biotechnol, Changchun 130124, Jilin, Peoples R China
4.Chinese Acad Sci, Inst Bot, Engn Lab Grass Based Livestock Husb, Beijing 100093, Peoples R China
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GB/T 7714
Feng, Xue,Liu, Lili,Li, Zhigang,et al. Potential interaction between autophagy and auxin during maize leaf senescence[J]. JOURNAL OF EXPERIMENTAL BOTANY,2021,72(10):3554-3568.
APA Feng, Xue.,Liu, Lili.,Li, Zhigang.,Sun, Fang.,Wu, Xiaoyuan.,...&Jing, Hai-Chun.(2021).Potential interaction between autophagy and auxin during maize leaf senescence.JOURNAL OF EXPERIMENTAL BOTANY,72(10),3554-3568.
MLA Feng, Xue,et al."Potential interaction between autophagy and auxin during maize leaf senescence".JOURNAL OF EXPERIMENTAL BOTANY 72.10(2021):3554-3568.
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